Lindsey Credit - www.spacefacts.de

Personal: Male, Married, Three children. Born in Arcadia, California, USA. US Air Force US Air Force

Astronaut Career

Astronaut Group: NASA Group 15 - 1995. Active Entered space service: 9 December 1994. Number of Flights: 4.00. Total Time: 50.15 days.

NAME: Steven W. Lindsey (Major, USAF)

NASA Astronaut

PERSONAL DATA:

Born August 24, 1960, in Arcadia, California. Considers Temple City, California, to be his hometown. Married to the former Diane Renee Trujillo. They have three children. He enjoys reading, water and snow skiing, scuba diving, windsurfing, camping, running, and racket sports. His parents, Arden and Lois Lindsey, reside in Arcadia, California. Her parents, Gene and Marcene Trujillo, reside in Temple City, California.

EDUCATION:

Graduated from Temple City High School, Temple City, California, in 1978; received a bachelor of science degree in engineering sciences from the U.S. Air Force Academy in 1982, and a master of science degree in aeronautical engineering from the Air Force Institute of Technology in 1990.

ORGANIZATIONS:

Member, Society of Experimental Test Pilots, USAF Academy Association of Graduates.

SPECIAL HONORS:

Distinguished Graduate Air Force Undergraduate Pilot Training (1983). Distinguished Graduate and recipient of the Liethen-Tittle Award as the outstanding test pilot of the USAF Test Pilot School Class 89A (1989). Awarded Air Force Meritorious Service Medal, Air Force Commendation Medal, Air Force Achievement Medal and Aerial Achievement Medal.

EXPERIENCE:

Lindsey was commissioned a second lieutenant at the United States Air Force Academy, Colorado Springs, Colorado, in 1982. In 1983, after receiving his pilot wings at Reese Air Force Base, Texas, he qualified in the RF-4C Phantom II and was assigned to the 12th Tactical Reconnaissance Squadron at Bergstrom Air Force Base, Texas. From 1984 until 1987, he served as a combat-ready pilot, instructor pilot, and academic instructor at Bergstrom. In 1987, he was selected to attend graduate school at the Air Force Institute of Technology, Wright-Patterson Air Force Base, Ohio, where he studied aeronautical engineering. In 1989, he attended the USAF Test Pilot School at Edwards Air Force Base, California. In 1990, Lindsey was assigned to Eglin Air Force Base, Florida, where he conducted weapons and systems tests in F-16 and F-4 aircraft. While a member of the 3247th Test Squadron, Lindsey served as the deputy director, Advanced Tactical Air Reconnaissance System Joint Test Force and as the squadron's F-16 Flight Commander. In August of 1993 Lindsey was selected to attend Air Command and Staff College at Maxwell Air Force Base, Alabama. Upon graduation in June of 1994 he was reassigned to Eglin Air Force Base, Florida as an Integrated Product Team leader in the USAF SEEK EAGLE Office where he was responsible for Air Force weapons certification for the F-16, F-111, A-10, and F-117 aircraft. In March of 1995 he was assigned to NASA as an astronaut candidate.

He has logged over 2700 hours of flying time in 49 different types of aircraft.

NASA EXPERIENCE:

Selected by NASA in December 1994, Lindsey became an astronaut in May 1996, qualified for assignment as a pilot on future Space Shuttle flight crews. Initially assigned to flight software verification in the Shuttle Avionics Integration Laboratory (SAIL), Lindsey also served as the Astronaut Office representative working on the Multifunction Electronic Display System (MEDS) program, a glass cockpit Space Shuttle upgrade program, as well as a number of other advanced upgrade projects. He will serve as pilot on the crew of the fourth U.S. Microgravity Payload flight scheduled for an November 1997 launch on board Columbia on mission STS-87.

• 19 November 1997 Flight: STS-87. Flight Up: STS-87. Flight Back: STS-87. Flight Time: 15.69 days.

• 29 October 1998 Flight: STS-95. Flight Up: STS-95. Flight Back: STS-95. Flight Time: 8.91 days.

• 12 July 2001 Flight: STS-104. Flight Up: STS-104. Flight Back: STS-104. Flight Time: 12.77 days.

• 4 July 2006 Flight: STS-121. Flight Up: STS-121. Flight Back: STS-121. Flight Time: 12.78 days.

9 June 1995 - NASA Astronaut Training Group 15 selected.. The group was selected to provide pilot, engineer, and scientist astronauts for space shuttle flights.. Qualifications: Pilots: Bachelor's degree in engineering, biological science, physical science or mathematics. Advanced degree desirable. At least 1,000 flight-hours of pilot-in-command time. Flight test experience desirable. Excellent health. Vision minimum 20/50 uncorrected, correctable to 20/20 vision; maximum sitting blood pressure 140/90. Height between 163 and 193 cm.

Mission Specialists: Bachelor's degree in engineering, biological science, physical science or mathematics and minimum three years of related experience or an advanced degree. Vision minimum 20/150 uncorrected, correctable to 20/20. Maximum sitting blood pressure of 140/90. Height between 150 and 193 cm.. 10 pilots and 9 mission specialists, 6 civilians and 13 military officers, chosen from 2,962 applicants, of which 122 screened in June-August 1994. 4 additional international astronauts.

Spartan was recaptured by hand, during a spacewalk by Takao Doi and Winston Scott on November 25. Tests of space station tools went well, but the free-flying Sprint camera subsatellite was not deployed due to lack of time.

NASA decided not to redeploy Spartan on this mission. During an EVA on Dec 3, Doi and Scott carried out more tests of the Space Station crane. They also deployed the AERCam/Sprint 'football' remote-controlled camera for a free flight in the payload bay.

Columbia landed on December 5, with a deorbit burn at 11:21 GMT. Touchdown was at 12:20 GMT at Kennedy Space Center.

Launch was delayed briefly while flight controllers evaluated an alarm during cabin pressure checks and several more minutes while range safety officers dealt with a stray aircraft in the launch area.

Commander Curt Brown, Pilot Steve Lindsey, and Mission Specialists Steve Robinson, Scott Parazynski and Pedro Duque, along with Payload Specialists Chiaki Mukai and Glenn arrived on orbit less than nine minutes after launch, ready to begin activating Shuttle systems and experiments in the Spacehab module located in Discovery's cargo bay.

The Shuttle's payload bay doors were expected to be opened about an hour and a half after launch, prior to the astronauts receiving a "go" to begin orbital operations.

The timeline calls for the astronauts to spend most of the afternoon and evening completing the setup and activation of dozens of experiments they will conduct throughout the mission to study the effects of microgravity on the human body and materials.

Discovery's astronauts are scheduled to begin an eight-hour sleep period about 11:45 p.m. Central time tonight and are due to be awakened tomorrow about 7:45 a.m. to begin their first full day of activity in orbit.

About 45 minutes after launch, Discovery's orbital maneuvering engines fired to round out the orbit at about 350 miles. The spacecraft is orbiting Earth every 90 minutes. All of Discovery's systems are performing normally.

Commander Curt Brown, Pilot Steve Lindsey and Mission Specialist Scott Parazynski will release PANSAT, the Petite Amateur Naval Satellite, early this afternoon. PANSAT is a small non-retrievable satellite developed by the Naval Postgraduate School in Monterey California. Designed to enhance the education of the military officers at the school through developing and observing its operation in space, PANSAT will capture and transmit radio signals that normally would be lost because the original signals were too weak or had too much interference.

Mission Specialists Steve Robinson and Parazynski will check out Discovery's Remote Manipulator System robot arm today to verify its operation prior to Sunday's scheduled deployment of the SPARTAN spacecraft for two days of free flight. During the checkout, they will survey the payload bay and also look at a possible loose tile on the left Orbital Manuevering System (OMS) engine pod, which was reported by Brown last night.

ESA Astronaut Pedro Duque and NASDA Astronaut Chiaki Mukai will check out and prepare the Middeck Glove Box, an enclosed research facility that will support numerous investigations throughout the mission. The glove box, referred to as MGBX, is a microwave sized research facility that provides the astronauts an opportunity to perform hands-on investigations in a controlled environment. Early this afternoon, Payload Specialist-2, John Glenn, will activate the MEPS experiment. MEPS, the Microgravity Encapsulation Process, studies the formation of capsules containing two kinds of anti-tumor drugs that could be delivered directly to solid tumors and has applications in chemotherapy treatments.

In addition, regularly scheduled exercise sessions and routine housekeeping chores also will occupy the crew's first full day on orbit, which promises to be a busy one for all seven members of the STS-95 crew. Flight Day 2 began at 7:45 a.m. central time today when the crew was awakened to the sounds of Louis Armstrong's "What A Wonderful World," played for Mission Specialist -2 Scott Parazynski from his wife, Gail.

Discovery is in an orbit with a high point of 349 statute miles and a low point of 340 statute miles, circling Earth once every one hour, 35 minutes and 54 seconds.

Commander Curt Brown, Pilot Steve Lindsey and Payload Specialist John Glenn took a few minutes break from the research work to provide a status on the mission thus far, with Glenn describing his adaptation to weightlessness and the views of Earth from Discovery. Early this afternoon, the crew released the Petite Amateur Naval Satellite, or PANSAT, which is now trailing Discovery by about 27 miles, increasing that distance by about 9 miles with each orbit. PANSAT, developed by the Naval Postgraduate School in Monterey, California, will remain in orbit and test innovative technologies to capture and transmit radio signals that normally would be lost because the original signals were too weak or contained too much interference.

Mission Specialists Steve Robinson and Scott Parazynski unstowed and checked out Discovery's 50-foot long robot arm, finding everything in good condition and ready for Sunday's scheduled deployment of the SPARTAN solar science spacecraft. Robinson and Parazynski also surveyed the exterior of Discovery, observing a small piece of loose insulation on the left rear of the spacecraft. The loose insulation poses no problems for the Shuttle. The crew also used the arm to test a new wireless camera technology that can be used with reflectors in the cargo bay to develop a system that may lead to a new alignment aid for arm operators.

The crew will begin an eight-hour sleep period at about 11:10 p.m. and awaken at 7:10 a.m. Central time on Saturday to begin day three of the mission. Discovery is orbiting at an altitude of 349 statute miles by 340 statute miles, circling the Earth once every one hour, 35 minutes and 54 seconds.

Mission Specialist Steve Robinson will use Discovery's robot arm to grapple Spartan from its berth in the payload bay and prepare it for its release. Once it is deployed, Spartan will conduct a programmed pirouette maneuver that will confirm that all of its systems are working normally. Commander Curt Brown then will maneuver Discovery away from the satellite, first to a short distance for a test of a communications link that will permit Spartan ground controllers to make fine pointing adjustments to one of the satellite's science instruments. Brown then will increase Discovery's separation to a distance of about 40 miles in front of Spartan. The satellite will be retrieved by Robinson using the robot arm on Tuesday. Spartan was unable to perform solar science studies last November following problems with its deployment during the STS-87 mission aboard Columbia.

Spartan's two main instruments - the Ultraviolet Coronal Spectrometer and the White Light Coronagraph, will measure atomic temperatures and densities, as well as solar wind velocities in the sun's corona so scientists can better understand the forces that create solar wind, and the impact it has on the electromagnetic environment around the Earth. Solar wind can have major impacts on communications technology on Earth.

Discovery's astronauts also will continue a battery of medical studies as they explore how the human body adapts to the weightless environment of space and how those changes compare with those seen as part of the aging process on Earth.

As part of the Canadian OSTEO experiment, Payload Specialist John Glenn will feed bone cell cultures as part of an evaluation of bone cell activity under microgravity conditions. Glenn will again provide blood samples as part of the Protein Turnover Experiment, which is looking at the balance between the building and breakdown of muscle. He also will work with the Advanced Organic Separations (ADSEP) experiment, which provides the capability to separate and purify biological materials in microgravity; and with the Microencapsulation Electrostatic Processing System (MEPS), which studies the formation of anti-tumor capsules containing two kinds of drugs.

Other research today will include use of the Advanced Gradient Heating Facility (AGHF) for directional solidification and crystal growth, and the Microgravity Glovebox (MGBX) for investigations of colloids, or systems of fine particles suspended in fluid..

At 4:35 p.m. Central time, Brown and Glenn will take part in a news conference with reporters at the Johnson Space Center.

Discovery is orbiting the Earth every 95 minutes at an altitude of about 340 statute miles with all systems operating in excellent condition.

Research continues, however, as the Spartan solar science satellite released by Discovery yesterday now trails the Shuttle by about 30 miles, performing observations of the sun and the solar wind. Discovery Commander Curt Brown and Payload Specialist John Glenn also took time out to answer questions about the mission from reporters with major broadcast television networks in the U.S. during the afternoon.

Later, Pilot Steve Lindsey and Mission Specialist Scott Parazynski set up lap top computers in Discovery's cockpit in preparation for the retrieval of the Spartan satellite on Tuesday. Spartan is planned to be recaptured by the Shuttle at 2:45 p.m. tomorrow.

The crew is scheduled to go to sleep at 9:25 p.m. Central tonight and awaken at 5:25 a.m. Tuesday. Prior to going to sleep, Brown will perform a small firing of Discovery's steering jets to maintain the distance from Spartan during the crew's night. Also, Glenn and fellow Payload Specialist Chiaki Mukai will don special instrumentation they will wear for a second night in a row that records a variety of information such as brain waves and body motions as they sleep.

Discovery remains in excellent condition with no systems problems of concern to Mission Control, orbiting Earth at an altitude of 348 by 338 statute miles.

Work will continue today with a wide variety of science experiments on board, although at a somewhat slower pace. Payload Specialist Chiaki Mukai and Mission Specialist Scott Parazynski - both physicians - will draw blood from Glenn and Mission Specialist Pedro Duque of Spain as part of the Protein Turnover Experiment, which assesses the body's breakdown and metabolism of protein before, during and after space flight.

Mukai and Glenn, each of whom wore an electrode net on their heads, as well as other measuring devices, during last night's sleep period, will complete some cognitive performance tests as part of their participation in the sleep study. The cognitive tests will include measurements of how quickly they respond to light cues on a lap-top computer.

Glenn and Mukai will don the electrode net again before turning in this evening. The electrodes are connected to a digital sleep recorder that monitors brain waves, eye movements, muscle tension, body movements and respiration. Mukai will swallow a capsule containing either melatonin or a placebo as part of the study before going to sleep.

Parazynski will check the status of components of the Hubble Space Telescope Orbital Systems Test (HOST) payload, which provides an on-orbit test bed for hardware that will be used during the third Hubble servicing mission. Parazynski and Pilot Steve Lindsey also will set up some of the tools that will be used during Tuesday's rendezvous and subsequent capture and reberthing of the Spartan satellite. Steve Robinson will use the Shuttle's robot arm to grapple Spartan tomorrow afternoon after Discovery completes its rendezvous with the sun-watching probe.

Other science activities today will include the collection of video data from the Advanced Gradient Heating Facility (AGHF) used for directional solidification and crystal growth, and from the Microgravity Glovebox (MGBX), which is used for investigations of colloids, or systems of fine particles suspended in fluid. Parazynski also will complete the 5th feeding of the bone cell culture that is part of the OSTEO experiment, an evaluation of bone cell activity under microgravity conditions.

Commander Curt Brown will spend some time this morning working with the Electronic Nose device, which was developed to detect, identify and quantify a wide range of organic and inorganic molecules and provide a comprehensive measurement of on-board air quality.

Mukai will be busy checking on the Vestibular Function Experiment Unit (VFEU), which holds two toadfish. The fish are electronically monitored to determine the effect of gravitational changes on the balance system in the inner ear. She also will monitor the Astroculture-8 facility that is designed to provide a controlled environment in which to grow plants in the weightlessness of space.

At 9:55 a.m. Central time, Brown, Duque and Glenn will receive a congratulatory call from Esperanza Aguirre, the Education Minister of Spain. Duque, the first Spaniard to fly in space, also will take questions from school children representing 17 regions of Spain.

At 4:00 p.m. Central time, Brown and Glenn will take part in unilateral interviews with the five major U.S. television networks.

Discovery is orbiting the Earth every 95 minutes at an altitude of about 349 statute miles with all systems operating in excellent condition.

The rendezvous began with Commander Curt Brown firing Discovery's orbital maneuvering engines to drop Discovery's orbit, accelerating it ahead of the SPARTAN. After closing the distance, Brown and pilot Steve Lindsey maneuvered Discovery in close as Mission Specialist 1 Steve Robinson operated the 50-foot robot arm. With MS2 Scott Parazynski assisting, Robinson directed the arm to a smooth grapple of the satellite at 2:45 p.m. CST. SPARTAN was placed in its berth in Discovery's cargo bay a short time later.

During the final maneuvers, astronauts tested the Video Guidance Sensor, a component of an automated docking system being prepared for use on the International Space Station. Flight Controllers noted that the system worked as planned.

Spartan will be used again tomorrow for data collection, once again being unberthed from its payload bay cradle for a few hours so that cameras can be pointed at a series of targets on the spacecraft. Those cameras will test the Space Vision System that uses remote camera views to provide a robot arm operator with the ability to view areas that cannot be seen with the naked eye.

While SPARTAN operations captured most of the attention today, other science operations continued aboard Discovery. Payload Specialists Chiaki Mukai and John Glenn, along with Parazynski and European Space Agency Mission Specialist Pedro Duque, continued taking blood samples as part of the Protein Turnover Experiment measuring muscle changes in zero gravity.

Glenn also attached electrodes and a data recorder to himself which record his heart rhythm on orbit, as part of an investigation of heart rate variability during space flight. He also fed bone cell cultures that are part of the OSTEO experiment, an evaluation of bone cell activity under microgravity conditions, and he worked with the Advanced Organic Separations (ADSEP) experiment, which provides the capability to separate and purify biological materials in microgravity..

Glenn and Duque worked with the Astroculture plant-growing experiment and with the MEPS (Microencapsulation Electrostatic Processing System) that studies the formation of anti-tumor capsules containing two kinds of drugs. Duque collected video data and photograph samples from the Microgravity Glovebox (MGBX) which is used for investigations of colloids, or systems of fine particles suspended in fluid. Mukai continued her work with the Japanese Vestibular Function Experiment Unit (VFEU), which holds two toadfish that are electronically monitored to determine the effect of gravitational changes on the inner ear's balance system

All systems aboard Discovery continue to operate well.

Rendezvous activities will begin when Commander Curt Brown fires Discovery's engines to lower the shuttle, causing it to accelerate ahead of the satellite. Discovery will fly over the top of Spartan, then coast back to about 8 or 9 miles behind the satellite. Brown and Pilot Steve Lindsey then will maneuver Discovery into position as Robinson powers up Discovery's 50-foot robot arm. Discovery will approach Spartan from beneath the sun probe to a distance of 35 feet. At that point, With the assistance of Scott Parazynski, Robinson will use the remote manipulator system to grapple Spartan to complete the first phase of its scientific mission. As Discovery closes in on Spartan today, the astronauts will test a device called the Video Guidance Sensor, a component of an automated docking system being prepared for use on the International Space Station. It is a laser system that provides precise measurements of how far away the shuttle is from a target and how fast it is moving toward or away from the target. Before grappling Spartan, Discovery will back away from the satellite to test the maximum range capability of the guidance system.

Spartan will be used again tomorrow for data collection, once again being unberthed from its payload bay cradle for a few hours so that cameras can be pointed at a series of targets on the spacecraft. Those cameras will test the Space Vision System that uses remote camera views to provide a robot arm operator with the ability to view areas that cannot be seen with the naked eye.

Other crew members will continue work with several of the on-board science experiments. Japanese Space Agency Payload Specialist Chiaki Mukai and fellow Payload Specialist John Glenn, along with Parazynski and European Space Agency Mission Specialist Pedro Duque, will undergo another series of blood draws. They will then take small amounts of the amino acids alanine and histidine, which contain special tracer molecules, 12 hours before another blood draw. This research is part of the Protein Turnover Experiment that may benefit people on Earth who suffer from weakened muscles or loss of bone mass. Duque, Mukai and Glenn also will collect urine samples as part of the study.

Glenn will don electrodes and a data recorder known as a holter monitor, which will record his heart rhythm on orbit, as part of an investigation of heart rate variability during space flight. He also will be kept busy feeding bone cell cultures that are part of the OSTEO experiment, an evaluation of bone cell activity under microgravity conditions, and he will work with the Advanced Organic Separations (ADSEP) experiment, which provides the capability to separate and purify biological materials in microgravity..

Glenn and Duque will spend time with the Astroculture plant-growing experiment and with the MEPS (Microencapsulation Electrostatic Processing System) that studies the formation of anti-tumor capsules containing two kinds of drugs. Duque will collect video data and photograph samples from the Microgravity Glovebox (MGBX), which is used for investigations of colloids, or systems of fine particles suspended in fluid.

As part of the evaluation of sleep disturbances in astronauts, Mukai and Glenn will complete a questionnaire about their personal observations of the previous night's sleep. They also will take a computerized battery of tests that measure reaction time, short-term memory, hand-eye coordination and other assessments.

Mukai will continue her work with the Japanese Vestibular Function Experiment Unit (VFEU), which holds two toadfish that are electronically monitored to determine the effect of gravitational changes on the inner ear's balance system. She also will monitor the Astroculture-8 facility that is designed to provide a controlled environment in which to grow plants in the weightlessness of space.

Discovery is orbiting the Earth every 95 minutes at an altitude of about 341 statute miles with all systems operating in excellent condition.

The astronauts will once again remove the Spartan solar science satellite from its berth in Discovery's payload bay for several hours of data collection. Cameras will be pointed at a series of targets on the spacecraft to test the Space Vision System, which uses remote camera views to provide a robot arm operator with the ability to see areas that are out of viewing area.

This morning Mission Specialist Steve Robinson, assisted by Mission Specialist Scott Parazynski, will again test the Orbiter Space Vision System. OSVS uses special markings on Spartan and the shuttle cargo bay to provide an alignment aid for the arm's operator using shuttle television images. It will be used extensively on the next Space Shuttle flight in December as an aid in using the arm to join together the first two modules of the International Space Station.

Robinson will use the shuttle's 50-foot robot arm to grapple Spartan, unlatch it and maneuver it into position. Following the OSVS tests, he will use the Video Guidance Sensor to assist in the reberthing processes. VGS provides precise measurements of how far away the shuttle is from Spartan and how fast it is moving toward or away from the target. VGS is a component of an automated docking system being prepared for use on the International Space Station.

Other crew members will continue work with several of the on-board science experiments. Commander Curt Brown, Lindsey, Robinson and Payload Specialist John Glenn will complete a daily back-pain questionnaire by as part of a study of how the muscle, intervertebral discs and bone marrow change after exposure to microgravity.

Glenn and Japanese Payload Specialist Chiaki Mukai will once again don a sleep net before going to sleep this evening. Each also will wear a special sleep suit. Electrodes on the sleep net and sensors in the sleep suit will monitor brain waves, eye movements, muscle tension, body movements and respiration. The electrodes and sensors are connected to a digital sleep recorder that records a variety of measurements as they sleep. Mukai also will swallow a capsule containing either melatonin or a placebo as part of the sleep study.

Parazynski and Mukai will draw more blood from ESA Mission Specialist Pedro Duque and Glenn as part of the Protein Turnover Experiment (PTO), which is examining muscle atrophy during exposure to microgravity.

Glenn will remove and stow the Holter monitor electrodes and data recorder he has worn for the past 24 hours. The Holter monitor recorded his heart rhythm on orbit, as part of an investigation of heart rate variability during space flight. He also will process blood samples as part of the PTO experiment.

Glenn and Lindsey will spend time with the Astroculture plant-growing experiment, while Parazynski and Duque will collect more video data and photograph the Microgravity Science Glovebox (MGBX) experiments known as Colloidal Disorder-Order Transition and Structural Studies of Colloidal Suspension. Colloids are systems of fine particles suspended in fluid. Researchers hope to learn more about how the organization of atoms changes as they form into orderly solid structures. Duque then will deactivate these two experiments for the remainder of the mission.

Mukai will continue her work with the Japanese Vestibular Function Experiment Unit (VFEU), which holds two toadfish that are electronically monitored to determine the effect of gravitational changes on the inner ear's balance system.

Brown, Lindsey and Glenn will take part in an interview with CBS Radio news and the Tonight Show beginning at 12:30 Central time this afternoon.

Discovery is orbiting the Earth every 95 minutes at an altitude of about 341 statute miles with all systems operating in excellent condition.

This afternoon Payload Specialist Chiaki Mukai along with STS-95 commander Curt Brown and Payload Specialist-2 John Glenn took a phone call from Japanese Prime Minister Keizo Obuchi and Minister of State for Science and Technology, Yutaka Takeyama. Also today, Brown, Glenn and pilot Steve Lindsey conversed with veteran newsman Walter Cronkite and NASA Administrator Daniel Goldin during a luncheon in Houston celebrating NASA's 40th anniversary. NBC's Jay Leno of the Tonight Show also interviewed Glenn, Brown and Lindsey in a conversation that will be aired on NBC tonight.

In other activity in space today, crew members continued work with several of the on-board science experiments. Brown, Lindsey, Robinson and Glenn completed a daily back-pain questionnaire by as part of a study of how the muscle, intervertebral discs and bone marrow change after exposure to microgravity.

Glenn and Mukai continued to record their food consumption and will once again don a sleep net and special sleep suit tonight. Electrodes on the sleep net and sensors in the sleep suit monitor brain waves, eye movements, muscle tension, body movements and respiration. The electrodes and sensors are connected to a digital sleep recorder that records a variety of measurements as they sleep. Mukai also will swallow a capsule containing either melatonin or a placebo as part of the sleep study.

Glenn removed the Holter monitor electrodes and data recorder he has worn for the past 24 hours, recording his heart rhythm on orbit, as part of an investigation of heart rate variability during space flight. Blood samples were again taken from Glenn and ESA astronaut Pedro Duque as part of the experiment monitoring the changes in muscle tissue in space.

Glenn and Lindsey operated the Astroculture plant-growing experiment, while Scott Parazynski and Duque monitored the Microgravity Science Glovebox (MGBX) experiments known as Colloidal Disorder-Order Transition and Structural Studies of Colloidal Suspension. Colloids are systems of fine particles suspended in fluid. Researchers hope to learn more about how the organization of atoms changes as they form into orderly solid structures. Duque deactivated these two experiments for the remainder of the mission.

Mukai continued her work with the Japanese Vestibular Function Experiment Unit (VFEU), which holds two toadfish that are electronically monitored to determine the effect of gravitational changes on the inner ear's balance system.

All systems on board Discovery continue to operate well.

Pilot Steve Lindsey and Mission Specialists Steve Robinson and Pedro Duque checked out a new communications systems for use during spacewalks. The new, digital communications system should provide enhanced communication quality between the space-walking astronauts, the orbiter and the flight control team in Houston.

Work with the Orbiter Space Vision System (OSVS) concluded today with a test of camera quality under varied lighting conditions. Robinson cycled through Discovery's payload bay cameras exposing each to day and nighttime conditions to validate how well the cameras can "see" the OSVS targets. Deactivation of some of the experiments began today. After using the Electronic Nose one last time to test the shuttle's air quality, Brown deactivated it for the rest of the mission. The Electronic Nose is a miniaturized electronic air quality monitoring system that mimics the way the human nose detects changes in the air. Duque also shutdown the Microgravity Science Glovebox and stowed equipment associated with that research facility.

The crew took time from its busy day today to talk with U.S., Japanese and European reporters at the Johnson Space Center in Houston, as well as with reporters gathered at the European Space Agency's Villafranca tracking facility outside Madrid, Spain.

Vice President Al Gore, former Astronaut Scott Carpenter and school children from the Washington D.C. area also had an opportunity to talk with the astronauts, asking questions about John Glenn's return to space and the work being done in orbit.

For the final time later this evening, Payload Specialists Glenn and Chiaki Mukai will don sleep nets and specially-instrumented suits to monitor brain waves, eye movements, muscle tension, body movements and respiration during their sleep period.

Preliminary weather forecasts indicate generally favorable weather to support Saturday's landing at 11:10 a.m. Central time at the Kennedy Space Center. Remnants of tropical storm Mitch are expected to pass through the area and move off Florida's east coast Friday night, allowing good weather for landing on Saturday.

Discovery is orbiting the Earth every 95 minutes at an altitude of about 341 statute miles with all systems operating well.

With the Spartan solar science satellite again secured in its berth in Discovery's payload bay, the astronauts will turn their full attention to some of the more than 80 experiments on board. They also will begin shutting down some of the experiments and facilities in anticipation of their return to Earth on Saturday morning.

Mission Specialist Steve Robinson will power up the Orbiter Space Vision System (OSVS) for an image optimization test. OSVS will be used in International Space Station assembly as a key source of precision data with which the robot arm operator will perform station assembly activities. Robinson and European Space Agency Mission Specialist Pedro Duque also will power up the Extravehicular Mobility Unit (EMU) and check the unit's communications system. The EMU would be used should a spacewalk become necessary; it provides pressure, thermal and micro-meteoroid protection, oxygen, cooling water, drinking water, food, waste collection (including carbon dioxide removal), electrical power and communications.

As they have throughout the flight, Commander Curt Brown, Pilot Steve Lindsey, Mission Specialist Steve Robinson and Payload Specialist John Glenn will complete a back-pain questionnaire as part of a study of how the muscle, intervertebral discs and bone marrow change due to microgravity. Results will be compared with data provided by astronauts during previous missions.

Glenn will continue blood sample analysis and blood processing that are part of the Protein Turnover (PTO) experiment, which is studying the muscle loss that occurs during space flight. Better understanding of the mechanisms of muscle loss may help scientists combat the muscle wasting commonly seen as a result of aging and in bedridden individuals.

Deactivation of some of the experiments will begin today. After using the Electronic Nose one last time to test the shuttle's air quality, Brown will deactivate it for the duration of the mission. The Electronic Nose is a miniaturized electronic air quality monitoring system that mimics the way the human nose detects changes in the air. Duque also will do a final shutdown of the Microgravity Science Glovebox and stow equipment associated with the facility.

Mission Specialist Scott Parazynski will check on the fish in the Vestibular Function Experiment Unit (VFEU). By studying how the balance organs of oyster toadfish in the VFEU adapt to microgravity, scientists hope to gain important insights about similar functions in humans and apply this information to develop therapies for equilibrium disorders on Earth.

At 12:10 p.m. Central time, the entire crew will gather for a press conference with U.S. and Japanese reporters at the Johnson Space Center in Houston, as well as with reporters gathered at the European Space Agency's Villafranca tracking facility outside Madrid, Spain. At 2:40 p.m. Central time, the astronauts will gather again for a conversation with Vice-President Al Gore and former Mercury astronaut Scott Carpenter from the White House.

Before going to sleep Wednesday night, the entire crew will gather for the traditional crew photograph. Then Glenn and Japanese Payload Specialist Chiaki Mukai will don for the last time their sleep nets and suits to monitor brain waves, eye movements, muscle tension, body movements and respiration during sleep. Mukai also will swallow a capsule containing either melatonin or a placebo as part of the sleep study.

Lindsey and Mukai will conduct additional work with the Astroculture experiment to study the growth of plants in the weightless environment of space. Brown and Glenn will complete the eighth and ninth feedings of the bone cell cultures that are part of the Canadian OSTEO experiment.

Preliminary weather forecasts indicate generally favorable weather to support Saturday's landing at 11:10 a.m. Central time at the Kennedy Space Center. Remnants of tropical storm Mitch are expected to pass through the area and move off Florida's east coast Friday night, allowing good weather for landing on Saturday.

Discovery is orbiting the Earth every 95 minutes at an altitude of about 341 statute miles with all systems operating in excellent condition.

Commander Curt Brown and Pilot Steve Lindsey will spend a good part of their day checking out important spacecraft systems for entry and landing. At about 7:20 a.m. Central time, the commander and pilot will begin the flight control system checkout, powering up one auxiliary power unit and evaluating the performance of aerodynamic surfaces and flight controls. The flight crew will perform a reaction control system hot fire about 8:30 a.m., followed by a test of the communications system.

At about 12:30 p.m. Central time, the crew will begin stowing the equipment used to conduct the mission's array of on-board science activities. Just before turning in for the night, Lindsey will stow the Ku-band antenna, which provides high data-rate relay and television.

The flight control teams in the Mission Control Center are also preparing for Saturday's landing at Kennedy Space Center, Florida. Preliminary weather forecasts indicate generally favorable weather to support Saturday's landing at 11:06 a.m. Central time. Remnants of tropical storm Mitch have passed through the area and moved off Florida's east coast.

Discovery is orbiting the Earth every 95 minutes at an altitude of about 341 statute miles with all systems operating well.

If weather and spacecraft systems cooperate, Discovery will touch down at KSC at 11:04 a.m. Central time after having flown 134 orbits of the Earth. Deorbit ignition of the shuttle orbiter's maneuvering engines will occur at 9:53 a.m. CST to slow the spacecraft's forward velocity allowing it to drop back into the Earth's atmosphere. Returning as an unpowered hypersonic glider, Discovery will follow a ground track taking it across Texas and Louisiana before it sweeps out over the Gulf of Mexico and into Florida.

Weather was predicted to be marginal, near the acceptable limits for crosswind and with scattered to broken clouds.

There are two landing opportunities to KSC Saturday and two to Edwards Air Force Base, California. Discovery has a second chance to land at KSC at 12:45 p.m. CST or could land at Edwards at either 12:35 p.m. or 2:17 p.m. Weather at Edwards was predicted to be good on Saturday but unacceptable on Sunday. KSC weather will be marginal both days. Earlier Friday, entry Capcom Susan Still told Discovery Commander Curt Brown that the plan would be to try both opportunities into KSC before considering the Edwards landing.

If Discovery lands Saturday, the seven astronauts will spend the night at the landing site before returning to Houston mid-day on Sunday to a welcome at Ellington Field.

Earlier today, Commander Curt Brown and Pilot Steve Lindsey spent a good part of their day checking out important spacecraft systems for entry and landing. One of the three auxiliary power units was turned on to provide hydraulic power for a test of the orbiter's aerodynamic surfaces. The reaction control jets were test fired and the shuttle's communications equipment tested. One of the RCS jets leaked during testing and was isolated. It will have no effect on entry and landing.

At the end of the crew day, the Ku-band antenna which provides television and high-rate data relay was stowed for the duration of the mission.

Commander Curt Brown and Pilot Steve Lindsey set Discovery down on the 3-mile long landing strip at KSC at 11:04 a.m. Central time, following a flawless hour-long descent back from space. A missing drag chute compartment door, which popped off during liftoff on October 29, posed no problem for the astronauts and had no effect on the landing.

For Payload Specialist Glenn, the landing was a gentler return home than he experienced more than 36 years ago when he splashed down in the Atlantic Ocean in his Friendship 7 capsule after becoming the first American to orbit the Earth. Glenn experienced only about 3 g's of gravitational force during today's reentry, half of what he experienced during his Mercury capsule mission in 1962.

"One G and I feel fine," Glenn exclaimed from the middeck following Discovery's wheelstop on Runway 3-3 at the Kennedy Space Center. "The view is still tremendous, give yourselves a pat on the back," Glenn added, as he congratulated his crew mates on the completion of the 92nd flight in Shuttle

Brown, Lindsey, Glenn, Mission Specialists Steve Robinson, Scott Parazynski and Pedro Duque of the European Space Agency and Payload Specialist Chiaki Mukai of NASDA were scheduled to be reunited with their families later today following postflight medical exams and medical tests associated with some of the biomedical experiments performed during the mission.

The astronauts will spend the night near the Kennedy Space Center tonight before leaving Florida tomorrow morning for a heroes' welcome back at Ellington Field in Houston Sunday.

Current plans call for the astronauts to leave the Cape Canaveral Air Station Skid Strip late Sunday morning for an arrival at Ellington around 2 p.m. Central time, where a crew return ceremony will mark their homecoming at Hangar 276, led by NASA Administrator Daniel Goldin, Johnson Space Center Director George W.S. Abbey, members of Congress and Houston Mayor Lee Brown.

A parade in downtown Houston is planned for the STS-95 astronauts on Wednesday, Nov. 11, Veteran's Day, to honor the crew, the nation's veterans and NASA.

• Bay 1-2: Orbiter Docking System/External Airlock - 2160 kg including 3 EMU spacesuits
• Bay 4-5: Spacelab Pallet (Fwd) with O2-1/O2-2 oxygen tanks - 2500 kg
• Bay 6-7: Spacelab Pallet (Aft) with N2-1/N2-2 nitrogen tanks - 2500 kg
• Bay 8-12: Station Joint Airlock Adapter beam (6064 kg) with IMAX Cargo Bay Camera (238 kg)
• Sill: RMS arm - 410 kg

The six tonne Airlock consisted of two cylinders of four meters diameter and a total length six meters. The Airlock could be pressurized by the externally-mounted high pressure oxygen-nitrogen tanks, and was to be the sole unit through which all future EVAs were to take place. (Until that point, all EVA entries/exits had been through a Russian module in ISS, with non-Russians having to wear Russian space suits). Another payload was the "EarthKAM" of middle/high school interest. It was to allow pupils to command picture-taking of chosen spots on Earth; they were expected to target 2,000 spots. The shuttle also carried out pulsed exhaust tests during maneuvers to enable better understanding of the formation of HF echoes from the shuttle exhaust. The echoes were obtained by ground based radars in an experiment called SIMPLEX (Shuttle Ionospheric Modification with Pulsed Local EXhaust). The STS-104 crew returned to Atlantis on July 22, and undocked at 0455 GMT. After flying around the station they departed the vicinity at 0615 GMT. Atlantis landed at 0338:55 GMT on July 25, touching down at Kennedy Space Center runway 15.

Atlantis Commander Steve Lindsey, Pilot Charlie Hobaugh and Mission Specialists Janet Kavandi, Jim Reilly and Mike Gernhardt will install an airlock named Quest on the station, increasing the orbiting complex's onboard capabilities for maintenance and construction and completing a major milestone in the station's orbital construction. The International Space Station crew - Commander Yury Usachev and Flight Engineers Jim Voss and Susan Helms -- was informed of Atlantis' launch just minutes after liftoff. The station crew spent the day preparing for the shuttle's visit. Earlier in the week the station crew performed final checks of the orbiting outpost's Canadian-built mechanical arm, an arm that will be used to attach the airlock, and reported the arm in excellent condition.

Atlantis is planned to dock with the station at about 9:51 p.m. Central on Friday. After opening Atlantis' payload bay doors and preparing the shuttle for an extended stay in space, Atlantis' crew will go to sleep at 9:04 a.m. Central today. The space station crew, now in its fourth month aboard the complex, will begin its sleep period at about 5:30 a.m. Central.

The station crew will awaken at 2 p.m. and Atlantis' crew will awaken at 5:03 p.m. today. When they awaken this afternoon, the shuttle crewmembers will spend their first full day in space checking out equipment in preparation for the major events to come on their 11-day mission: Friday's docking with the station and three space walks, the first to begin on Saturday, to install the new airlock.

Atlantis Commander Steve Lindsey, Pilot Charlie Hobaugh and Mission Specialists Janet Kavandi, Jim Reilly and Mike Gernhardt will spend their first full day in space checking equipment in preparation for the major events to come on their 11-day mission: Friday's docking with the station and Saturday's first of three space walks.

With Gernhardt and Reilly assisting during a seven-hour space walk, scheduled to begin around 9 p.m. Saturday, Flight Engineer Susan Helms will use the station's new robotic arm -- Canadarm2 -- to remove the Quest airlock from the shuttle's payload bay and attach it to the right side of the station's Unity connecting module. The new airlock will enable station crews to perform space walks in U.S. space suits without the shuttle being present. This ability will enhance the station's capabilities for maintenance and construction and complete a major milestone in the station's orbital construction.

The International Space Station crew - Commander Yury Usachev and Flight Engineers Helms and Jim Voss - awoke at 2 p.m. The station crew will spend its day preparing for the Friday docking of Atlantis and the Saturday installation of the Quest airlock. The Expedition Two crew has been in space since March 8 and in charge of the space station since it took over from the Expedition One crew March 18.

The day's rendezvous operations began at 4:34 p.m. with Atlantis trailing the station by about 250 statute miles and closing the gap by 230 miles every orbit. Yesterday, the crew powered up the shuttle's docking mechanism and installed a centerline camera that will help line up the orbiter's docking mechanism with the station's docking port.

Aboard the International Space Station, Expedition Two crew Commander Yury Usachev and Flight Engineers Jim Voss and Susan Helms awoke at 4 p.m. The Expedition Two crew spent its orbital morning preparing the station for the arrival of Atlantis, and some initial cargo exchanges.

Another successful firing of Atlantis' orbital maneuvering system engines at 6 p.m. refined the shuttle's approach. A final burn, called the Terminal Intercept (Ti) burn, is scheduled for 7:33 p.m. when Atlantis is about 50,000 feet behind the station. After the Ti burn, the shuttle's rendezvous radar system will begin tracking the station and providing range and closing rate information to Commander Steve Lindsey and Pilot Charlie Hobaugh. When Atlantis reaches a point about a half mile below the station, Lindsey will take manual control of the shuttle and slow Atlantis' approach, flying to a point about 600 feet below the station. Mission Specialists Michael Gernhardt, Janet Kavandi and Jim Reilly will assist, operating additional range-finding tools and documenting the approach with an IMAX camera mounted in the cargo bay. Lindsey will trace a quarter-circle around the station, bringing the shuttle to a point a little more than 300 feet in front of the Destiny laboratory and Pressurized Mating Adapter 2. From that point, Lindsey will move Atlantis toward the station at a speed of one tenth of a mile per hour until the two vehicles are just 30 feet apart; there he will pause for a few minutes to check his alignment. Lindsey will gently close the distance until the shuttle's spring-loaded docking mechanism makes contact with the station. The mechanism will be retracted and latches commanded to close, completing the docking process.

After docking, the crews are scheduled to open the hatches between the two vehicles about 11:30 p.m. and greet one another in a brief welcoming ceremony.

Commander Steve Lindsey and Pilot Charlie Hobaugh fired Atlantis' steering jets periodically during the night to adjust the shuttle's course toward the station. Atlantis now is trailing the International Space Station by about 1,800 statute miles, closing the gap by 230 miles with each orbit of Earth, on track to dock with the complex at about 9:53 p.m. Central. Astronauts Mike Gernhardt and Jim Reilly powered up and tested the two space suits they will wear during the three space walks planned to install the Airlock Quest on the station after Atlantis arrives. Assisted by Hobaugh, they also checked a third, spare suit that will be left aboard the station.

During the suit checks, the crew noted a white substance in the vicinity of the spare space suit's battery. Mission Control instructed the crew to take several standard precautionary measures, such as donning rubber gloves and turning off several ventilation fans, as they cleaned the substance off of the suit, swapped the suspect battery with a fresh one and changed the carbon dioxide removal cartridge. The old battery was then stowed away, sealed in leak-proof bags. The substance did no damage to the space suit and it remains in excellent operating condition.

Mission Specialist Janet Kavandi powered up Atlantis' robotic arm, successfully checking its operation and surveying the Quest airlock in the shuttle cargo bay using television cameras on the arm. The shuttle's robotic arm will be used to maneuver the space walkers during their planned work outside Atlantis and the station. The crew also powered up the shuttle's docking mechanism, preparing it for the linkup tonight.

Atlantis is in an orbit with a high point of 235 miles and a low point of 182 miles, circling Earth every 90 minutes. All of the shuttle's systems are in excellent condition.

Aboard the International Space Station, Expedition Two crew Commander Yury Usachev, and Flight Engineers Jim Voss and Susan Helms reviewed the schedule for Atlantis' arrival later tonight. The shuttle and station crews will go to sleep at about 8:04 a.m. The shuttle crew will awaken at 3:04 p.m. and the station crew at 4:04 p.m. to begin the rendezvous and docking activities.

Atlantis brings a new airlock to the station. It will enable station crewmembers to conduct spacewalks from the station, using either Russian or U.S. spacesuits.

The hatch separating the Atlantis crew, Lindsey, Pilot Charles Hobaugh, and mission specialists Mike Gernhardt, Janet Kavandi and James Reilly, from Expedition Two crewmembers Yury Usachev, Jim Voss and Susan Helms was opened at midnight. After a safety briefing by Expedition Two Commander Usachev, both crews began an hour-long review of procedures for the first of three spacewalks of the STS-104 mission.

The spacewalk, by Gernhardt and Reilly, is to begin about 9:10 p.m. Saturday and last more than seven hours. Focus of the spacewalk is the berthing of the airlock, named Quest. Two subsequent spacewalks by Gernhardt and Reilly will attach high-pressure Oxygen and Nitrogen tanks to the airlock.

After the hour-long meeting on the spacewalk, robotic arms on both the station and Atlantis were put through a rehearsal of procedures to be used during removal of the airlock from the shuttle's cargo bay and its attachment to the station. Helms took the station's 58-foot-long robotic arm, Canadarm2, through a dry run of the berthing of the new airlock to the starboard docking port of the station's Unity node. Aboard Atlantis, Kavandi powered up the shuttle's robotic arm and practiced its spacewalk activities.

Early Saturday Gernhardt and Reilly checked the batteries of their spacesuits and found no evidence of potassium hydroxide leakage that was seen Friday as they checked a spare spacesuit. The battery was replaced and the suit cleaned. Managers decided to postpone temporarily the planned transfer of that suit to the station while they study the situation.

Hatches between Atlantis and the station were closed at 4:45 a.m. and the pressure in the shuttle's cabin reduced to 10.2 pounds per square inch in preparation for the first spacewalk.

Today's work will include testing nitrogen and oxygen lines that will be used during future shuttle missions to replenish the airlock's tanks of high-pressure oxygen and nitrogen; testing the airlock's space walk equipment; and installing valves that will connect Quest to the station's environmental control system. In addition to checking and activating Quest's systems, the crews will remove the motor controllers from the airlock's berthing mechanism, which are no longer needed now that the airlock is firmly attached to the station.

The shuttle crew's day began at 4:04 p.m. with a wake-up call from Mission Control playing the song "No Woman No Cry" by Bob Marley for Mission Specialist Mike Gernhardt. On board the space station, Commander Yury Usachev and Flight Engineers Jim Voss and Susan Helms awoke at 5:04 p.m.

After the airlock was attached to the station early Sunday morning, and the first part of its checkout was completed, the shuttle and station crews held a ribbon cutting for the new addition. Station Commander Yury Usachev and Atlantis Commander Steve Lindsey cut a white ribbon that had been strung across the entrance of Quest's crew lock. Lindsey and Usachev made two cuts to the ribbon, each on either side of the word Quest to christen the new compartment. This evening's checkout of Quest will help prepare for the mission's third space walk, scheduled for Thursday evening. That space walk, during which two air tanks will be installed on Quest, will be the first to originate from the new airlock.

Yesterday, a decision was made to bring home a spare space suit aboard Atlantis that had experienced a leaking battery. Controllers were worried that the leaking battery may have damaged portions of the suit and decided to bring the suit home for inspection and cleaning. The originial plan had been to leave the suit aboard the station for use by future crews.

All systems continue to function normally aboard both the Space Shuttle Atlantis and the International Space Station. Later this evening, a little after 8 p.m., the shuttle's engines will be used to perform an hour-long reboost of the station's altitude.

After cleaning up about half a liter of water that spilled from a coolant line and getting rid of some air bubbles that caused the spill, the two crews installed valves that connect Quest to the station's environmental control system and a computer that will be used to run the airlock's systems. They also tested lines that will be used during future shuttle missions to replenish oxygen and nitrogen supplies, and removed bolt drivers from the airlock's berthing port, which are no longer needed now that the airlock is permanently attached to the station.

The extra time it took to get the coolant line working put the crews about an hour behind schedule, so a planned checkout of the airlock's space walk equipment was put off to another day. Station Commander Yury Usachev and Flight Engineers Jim Voss and Susan Helms were able to try out the airlock's audio communication systems, making the first radio calls to the ground from the airlock and two American space suits.

STS-104 Commander Steve Lindsey and Pilot Charlie Hobaugh fired the shuttle's engines for an hour Sunday night to boost the station to an altitude of 238 by 235 statute miles (383 by 375 kilometers). Mission Specialists Michael Gernhardt, Janet Kavandi and Jim Reilly also worked on equipment and supply transfers between the shuttle and station.

Gernhardt and Reilly made preparations for the second spacewalk of the mission, during which they will help install the first set of the High-Pressure Gas Tanks -- one oxygen tank and one nitrogen tank -- onto the airlock's shell on Tuesday. A third space walk, scheduled for Thursday evening, will see Gernhardt and Reilly use the new airlock for the first time.

The two crews will go to bed at 8:04 a.m., with a wake-up call scheduled for 4:04 p.m.

Mission Specialist Janet Kavandi will assist Expedition Two Flight Engineer Jim Voss in troubleshooting the suspected leak in an Intermodule Ventilation (IMV) assembly. The IMV Assembly, a series of fans and valves that circulate air between station modules, connects the Quest airlock to the station's environmental control and life support system. The two astronauts will examine the valve seals for any debris or damage and determine if the valve will have to be replaced. Should replacement be necessary, a spare valve is available aboard the station.

Meanwhile, Atlantis Commander Steve Lindsey and Expedition Two Flight Engineer Susan Helms will test oxygen lines between the station and the airlock. The lines will be used during future shuttle missions to replenish the airlock's high-pressure oxygen tanks with shuttle-supplied oxygen.

The Atlantis crew was awakened for its sixth day in space at 4:19 p.m. today by the song "Nobody Does it Better" performed by Carly Simon, played by Mission Control for Mission Specialist Jim Reilly. The International Space Station crew of Commander Yury Usachev, Voss and Helms is in its 131st day in space.

Atlantis' space walkers Mike Gernhardt and Jim Reilly will spend today preparing for their two remaining space walks. They will review plans and set up equipment in both Atlantis' airlock and the station airlock. The second spacewalk, to begin Tuesday evening, will originate from Atlantis while the third spacewalk, to begin Thursday, will be the first to originate from the station's new Quest airlock. Both of the remaining space walks will focus on the installation of high-pressure oxygen and nitrogen tanks on the exterior of the Quest airlock.

Lindsey, Atlantis' Pilot Charlie Hobaugh and Usachev will take a break from their work at 11:34 p.m. CDT for a 20-minute interview by news reporters from CBS, Space.com and KNBC-TV of Los Angeles.

The practice run included a successful lowering of the airlock's pressure to 10.2 pounds per square inch for the first time in space.

Lead Flight Director Paul Hill said troubleshooting on the valve -- and work the day before to get air bubbles out of an airlock water cooling line -- have put the combined crew about half a day behind its timeline. Among the tasks delayed was a relocation of the hatch from the junction of the airlock and the Unity module to its final position between the airlock's crew and equipment lock sections.

The second space walk of the flight remains on schedule for Tuesday night. Mission Specialists Mike Gernhardt and Jim Reilly are scheduled to step out of the space shuttle's airlock about 9:30 p.m. The objective of the 5 ½ hour foray is to mount one high-pressure oxygen and one high-pressure nitrogen tank on the shell of the new airlock to provide consumables that would allow expeditioners to leave the station in American space suits for construction and maintenance work without a shuttle present. Russian space suits can be used from the airlock as well.

The crews closed the hatches between the two spacecraft at 6:30 a.m. Tuesday to begin lowering Atlantis' cabin pressure to that same 10.2 pounds per square inch mark. This measure helps purge nitrogen bubbles from the space walkers' bloodstreams, and is augmented by the space walkers pre-breathing pure oxygen. All crewmembers reviewed the procedures for the space walk prior to closing the hatch between the shuttle and the station's Destiny Laboratory.

Mission Specialist Janet Kavandi and Expedition Two Flight Engineer Jim Voss took the lead in troubleshooting the suspected leak in an Intermodule Ventilation (IMV) assembly. The series of fans and valves circulates air between station modules and connects the airlock to the station's environmental control and life support system. The pair wasn't able to pinpoint the problem with the valve, but did install a cap that stopped the leak. Should replacement be necessary, several valve replacement options are available to the flight control team and crew onboard.

The delays have led flight managers to study the possibility for an extra day of docked operations and a shuttle mission extension to ensure all of the mission's work can be completed.

Shuttle Commander Steve Lindsey, Atlantis' Pilot Charlie Hobaugh and Station Commander Yury Usachev took time late Monday night to answer questions from reporters from CBS, Space.com and KNBC-TV of Los Angeles.

The eight people on orbit are scheduled to go to bed about 8 a.m. and awaken at 4:04 p.m.

Four of the arms belonged to space walkers Mike Gernhardt and Jim Reilly. Two robotic arms also were called into service - the shuttle's Canadarm and its big brother, the station's Canadarm2. Station Flight Engineers Susan Helms and Jim Voss were at the station arm's controls, while Mission Specialist Janet Kavandi guided the shuttle limb.

The space walk got off to a slightly delayed start at 10:04 p.m. CDT Tuesday after the station's primary Command and Control computer had to be restarted. The computer, needed to guide the station arm as it lifted the high-pressure oxygen and nitrogen tanks out of the shuttle cargo bay and into position alongside the new airlock, was back in business shortly after 8 p.m., allowing first motion of the arm by 9 p.m.

Gernhardt and Reilly, supported by their six colleagues inside the shuttle and station, latched the first two dog house-shaped tank assemblies into place without difficulty, so shuttle and station Flight Directors Paul Hill and Mark Kirasich decided to move ahead with installation of the third tank at 1:41 a.m.

The second space walk of the mission concluded at 4:33 a.m. CDT Wednesday. It was the 66th space walk in shuttle program history, and the 23rd devoted to International Space Station assembly. So far, STS-104 space walks have lasted 12 hours, 28 minutes.

The crews will have an extra day to prepare for the third and final planned space walk of the flight, which now is scheduled for Friday. Mission managers decided Tuesday to add the additional docked day to give the joint crew adequate time to ready the new airlock for its first use.

The two crews are about half a day behind schedule due to a small water leak that occurred when the astronauts were linking the new airlock to the station's Moderate Temperature Loop. The crews will resume troubleshooting a leaky air valve in an Intermodule Ventilation (IMV) unit on the rear, right side of the station's Unity node after wakeup scheduled for 4:04 p.m. today.

With the space walk complete, STS-104 Commander Steve Lindsey and Pilot Charlie Hobaugh, who also was the inside coordinator for the space walk, began another hour-long series of automated steering jet firings to reboost the station's altitude.

Atlantis Commander Steve Lindsey and Expedition Two Flight Engineer Jim Voss will do the valve replacement. It will be tested for several hours to ensure it is not leaking. Atlantis spacewalkers Mike Gernhardt and Reilly, assisted by Pilot Charlie Hobaugh will continue testing equipment of the new airlock Quest. The three astronauts also will transfer equipment to Quest for the third spacewalk of the mission. That spacewalk is scheduled for Friday evening and will be the first out of the new airlock.

Atlantis Mission Specialist Janet Kavandi and Expedition Two Flight Engineers Jim Voss and Susan Helms will install the Hatch between Quest's Crew Lock and Equipment Lock. The hatch is currently in its launch position at the interface between the airlock and the Unity node. After the hatch is installed in its new position, it will be tested for leaks for more than eight hours.

Station Commander Yury Usachev will spend his day working with one of the station's payload computers, performing periodic maintenance on several of the station's Russian systems and helping fellow crewmate Voss replace valves on the Airlock to continue linking the new module with the station's life support systems.

At about 2:30 a.m. Thursday, Lindsey will fire Atlantis' engines in a series of pulses during a one-hour period to boost the station's altitude. This will be the third and final reboost scheduled for this mission.

The Atlantis crew was awakened at 4:04 p.m. Wednesday by Sheryl Crow's "All I Wanna Do." The song was played for the entire crew from their training team.

That space walk is scheduled to begin about 10:30 p.m. Friday, pending a successful leak check of the crew lock while the crew sleeps today. Mission Specialists Mike Gernhardt and Jim Reilly will attach a fourth and final supply tank to the airlock's exterior, and move on to some get-ahead tasks made possible when they were able to attach a bonus third tank during Wednesday's space walk. Tasks added to Friday's space walk include an inspection of one of the station's solar array swivels and inspection of the Floating Potential Probe that measures plasma levels around the solar arrays.

STS-104 Commander Steve Lindsey and Expedition Two Flight Engineer Jim Voss finished replacing the Intermodule Ventilation (IMV) Assembly valve in the station's Unity module about 7:30 p.m. Wednesday. With help from station Commander Yury Usachev, they replaced the leaking valve with another from the Destiny laboratory that won't be needed until the station's second node arrives in 2003.

Voss, Mission Specialist Janet Kavandi and Susan Helms moved the hatch from its initial location between the Unity module and the airlock's Equipment Lock to between the Equipment Lock and Crew Lock. The Equipment Lock will be used for storing and servicing space suits, while the Crew Lock will serve as the exit to space.

Usachev also worked with one of the station's payload computers, performing maintenance on several of the station's Russian systems, and Kavandi, Gernhardt and Reilly worked to transfer items between the shuttle and station while getting equipment and space suits squared away in the airlock. Helms also changed out a Command and Control computer that had been temporarily installed in place of a payload data computer in Destiny. The payload computer was cannibalized during the STS-100 mission and retasked when all three of the station's command computers broke down. The old computer will be returned to Earth on Atlantis for testing and analysis.

Lindsey and Pilot Charlie Hobaugh gave the station another boost using the shuttle's reaction control system jets, increasing the station's orbit about 5 miles to 244 x 240 statute miles. It was the final reboost planned for this mission. Atlantis will leave the station later this week about 10 miles higher than when it arrived.

Atlantis Commander Steve Lindsey and Mission Specialist Janet Kavandi will assist with the final checks of the airlock later in the morning. Subsequently, all eight crewmembers will gather to review the procedures for Friday's spacewalk, the third of the mission. During that spacewalk, Gernhardt and Reilly will attach the final nitrogen gas tank to the airlock, assisted by Voss and Expedition Two Flight Engineer Susan Helms who will be operating the station's robotic arm. At 10:11 p.m., the two crews will participate in a joint news conference with media representatives at several NASA centers and the Russian Mission Control Center in Korolev. That conference will run for 26 minutes and will be shown live on NASA TV. In addition, Lindsey is scheduled to downlink a tour of the Quest airlock around 3 a.m.

Station Commander Yury Usachev will perform various periodic maintenance duties on the station's Russian systems, as well as help fellow crewmates Voss and Helms prepare for robotics operations related to Friday evening's spacewalk.

The Atlantis crew was awakened at 4:04 p.m. by the song "A Time To Dance" by Janet Giroux played by the Space Center Intermediate School Symphonic Band. The band was directed by Giroux and the song was played for Reilly.

STS-104 Commander Steve Lindsey, Pilot Charlie Hobaugh and Mission Specialists Mike Gernhardt, Janet Kavandi and Jim Reilly also got together with Expedition Two Commander Yury Usachev and Flight Engineers Susan Helms and Jim Voss in Quest to answer questions from reporters in the U.S. and Russia.

Voss reported tracking down and sealing a minor leak discovered during an overnight pressure check. Air had found a path from the Equipment Lock segment of the new airlock to its Crew Lock, which is the segment the orbital construction workers will open to the vacuum of space when they step outside about 11:09 p.m. CDT Friday.

Flight Directors Paul Hill and Mark Kirasich talked with the crew about 1 a.m. Friday, going over the final details and sending up the good news that both the shuttle and station flight control teams agree all systems are "go" for the first station-based excursion out of the airlock. Lindsey sent down a video tour of the fully outfitted Quest module about 4:50 a.m.

The entire crew then reviewed the plan for Friday's five-hour space walk by Gernhardt and Reilly. On their third foray outside this mission, the pair will attach the final nitrogen gas tank to the airlock and climb to the top of the station's solar array truss to check on a swivel joint that allows the arrays to track the sun. If time allows, they'll also take a look at the nearby Floating Potential Probe that measures the plasma created as the arrays drag through the rarified atomic oxygen at 240 miles up.

Meanwhile, Usachev performed some periodic maintenance duties on the station's Russian systems, and helped Voss and Helms prepare for their work with the Canadarm2 robotic arm's operations related to Friday evening's space walk.

After some time off to rest up after a very busy week, the crews were scheduled to turn in at 8 a.m. Their alarm clock is scheduled to go off at 4:04 p.m.

During the mission's third spacewalk, Gernhardt and Reilly will install a second nitrogen tank on the Quest airlock. Three other tanks, two oxygen and one nitrogen, were installed during a previous spacewalk. Expedition Two Flight Engineer Jim Voss, assisted by Flight Engineer Susan Helms, will lift the final gas tank from the payload bay of Atlantis around 10:40 p.m. and slowly deliver it to Gernhardt and Reilly, who will be awaiting its arrival at the Quest airlock.

Atlantis Pilot Charlie Hobaugh assisted by Station Commander Yury Usachev will coordinate the nearly five-hour spacewalk. Commander Steve Lindsey will operate the shuttle's robotic arm.

The Atlantis crew was awakened at 4:04 p.m. by the song "I Could Write A Book" from the motion picture When Harry Met Sally. The song was played for Lindsey. All systems aboard both Atlantis and the International Space Station continue to function normally as the two spacecraft orbit the Earth at an average altitude of 240 statute miles.

The space walk also was the first to be supported primarily from the space station Flight Control Room in Houston, and the first demonstration of a new pre-breathing protocol that uses vigorous exercise to help purge nitrogen bubbles from the space walkers' bloodstreams and prevent what is known as "the bends."

Mission Specialists Mike Gernhardt and Jim Reilly exited the new airlock at 11:35 p.m. CDT Friday and were back inside by 3:37 a.m. Saturday. Working in tandem with the station's Canadarm2 operator and Expedition Two Flight Engineer Jim Voss and shuttle arm operator and Atlantis Commander Steve Lindsey, the space-age construction workers attached a nitrogen supply tank to the airlock's shell. This completed the installation of two nitrogen and two oxygen tanks that will be used to pressurize the airlock and resupply space suits. Atlantis Pilot Charlie Hobaugh and Station Commander Yury Usachev coordinated the space walk from inside, while Flight Engineer Susan Helms supported station arm operations.

Depressurizing the airlock took longer than expected - about 40 minutes instead of the anticipated 7 minutes. Flight controllers and engineers have not yet identified what caused the pressure equalization valve on the Crew Lock's hatch to react so slowly, but are continuing to evaluate data and reports from the crew.

During the mission's third spacewalk, Gernhardt and Reilly also moved hand-over-hand up the station's solar array truss to take a look at a gimbal assembly mechanism that allows the arrays to swivel with the Sun. They reported no visible signs that could account for high-current readings being witnessed by flight controllers on the ground.

The successful construction foray brings the total time for space station-based walks to 4 hours, 21 minutes. There have been 24 space walks devoted to station assembly, a combined total of 155 hours, 39 minutes.

The crews will go to bed at 8:04 a.m., and awaken at 4:04 p.m. to begin preparations for an undocking at 11:54 p.m. CDT Saturday. The Atlantis and Expedition Two crews will say good-bye and close the hatches at 8:59 a.m.

The Atlantis crew, Commander Steve Lindsey, Hobaugh and Mission Specialists Janet Kavandi, Mike Gernhardt and Jim Reilly, will leave behind the Expedition Two crew of Commander Yury Usachev and Flight Engineers Jim Voss and Susan Helms, who are in their 136th day in space.

The Expedition Three crew, Commander Frank Culbertson and Flight Engineers Vladimir Dezhurov and Mikail Tyurin, will replace the Expedition Two crew next month during the STS-105 mission.

Atlantis will undock from an International Space Station that is ready to begin independent operations. Since July 2000, 77 tons of hardware has been added to the station, including the Zvezda module, the Z1 Truss Assembly, Pressurized Mating Adapter 3, the P6 Truss and its 240-foot long solar arrays, the U.S. laboratory Destiny, the Canadarm2 and the Quest airlock.

The Atlantis crew was awakened at 4:14 p.m. Saturday by the song "Who Let The Dogs Out" sung by the Baha Men. The song was played for Hobaugh. All systems aboard both Atlantis and the International Space Station continue to function normally as the two spacecraft orbit the Earth at an average altitude of 240 statute miles.

Lindsey and Hobaugh will do a test firing of the reaction control system jets that will be used to maneuver Atlantis as it begins to re-enter the Earth's atmosphere. The pair also will check out the orbiter's flight control surfaces that will be used to maneuver Atlantis when it reaches the lower portions of the atmosphere. Finally, they will test Atlantis' communications systems.

Kavandi, Gernhardt and Reilly will put away some of the equipment they used during their eight days docked to the International Space Station. They also will stow some of the 2,550 pounds of equipment they are bringing home from the station. Atlantis is almost 100 statute miles ahead of the space station and increasing the separation by almost nine miles per 90-minute orbit.

Atlantis is scheduled to land at Kennedy Space Center in Florida on Monday at 11:37 p.m. CDT. Another landing opportunity is available on the subsequent orbit, which would see Atlantis touch down at 1:13 a.m. Tuesday. Though the outlook was improving, forecasts for landing time still carried the possibility of clouds and rain.

During the afternoon, Russian flight controllers performed the first two firings of thrusters of the Progress resupply vehicle docked at the rear of the station's Service Module. These burns and three subsequent firings of the Progress thrusters this week will adjust the inclination of the station's orbit. The slight adjustment is being made to prepare for arrival of Discovery on the STS-105 mission and the next Progress, both in August, and the launch of the Russian Docking Compartment in September. The Atlantis crew was awakened at 4:36 p.m. Sunday by the song "Orinoco Flow" sung by Enya. The song was played for Mike Gernhardt. All systems aboard Atlantis continue to function normally as the spacecraft orbits the Earth at an average altitude of 240 statute miles.

Pilot Charlie Hobaugh was at the shuttle's aft flight deck controls for the fly-around, which allowed the shuttle crew to take a parting look at the newly installed airlock, Quest, and the four large air supply tanks they had delivered.

Commander Steve Lindsey, Hobaugh and Mission Specialists Janet Kavandi, Mike Gernhardt and Jim Reilly, had spent 196 hours, 46 minutes - or more than 8 days - docked to the station, working with Expedition Two Commander Yury Usachev and Flight Engineers Jim Voss and Susan Helms to install, checkout and christen the station's newest asset.

A final separation burn at 1:14 a.m. CDT Sunday put Atlantis on its initial course for home, with landing scheduled for 11:37 p.m. CDT Monday at Kennedy Space Center.

The entire Atlantis crew took time out to discuss the mission with CNN and Fox News early Sunday, then got ready for bed about 7:30 a.m. The shuttle astronauts will awaken at 5:34 p.m. CDT Sunday and begin stowing gear and testing Atlantis' systems that will be used during re-entry and landing.

Back on the station, the Expedition Two crew will go to bed about 1 p.m. Sunday, then enjoy a day of off-duty time following the busy shuttle stay and begin shifting back to its regular schedule. So far, the Expedition Two crew has spent 136 days in space. The trio will be replaced by Expedition Three Commander Frank Culbertson and Flight Engineers Vladimir Dezhurov and Mikhail Tyurin next month during Discovery's STS-105 mission.

All systems aboard both Atlantis and the International Space Station continue to function normally as the two spacecraft orbit the Earth independently once again.

Atlantis Commander Steve Lindsey, Pilot Charlie Hobaugh and Mission Specialists Janet Kavandi, Mike Gernhardt and Jim Reilly will awaken at 3:04 p.m., and begin deorbit preparations at 6:30 p.m. The shuttle's payload bay doors are slated to be closed at 7:49 p.m. Computers on the shuttle will be switched to landing mode at 8:01 p.m., and the crew will climb into its seats at 9:29 p.m.

Since the shuttle's supplies will support several more days on orbit, Entry Flight Director Wayne Hale has elected to activate landing support only at Kennedy Space Center for tonight. Forecasters are predicting generally favorable conditions at the Shuttle Landing Facility, but are watching out for the possibility of thunderstorms and rain within 30 miles.

There are two Florida landing opportunities Monday night and Tuesday morning. The first begins with a deorbit burn at 10:29 p.m. and concludes with landing at 11:37 p.m. CDT Monday. The second commences with an engine firing at 12:08 a.m. ending with landing at 1:14 a.m. CDT Tuesday.

Lindsey and Hobaugh on Sunday conducted successful tests of the reaction control system jets used to maneuver Atlantis as it begins to re-enter the Earth's atmosphere. They then checked out the flight control surfaces that become effective once the orbiter's computers sense aerodynamic drag on the vehicle.

Kavandi, Gernhardt and Reilly put away the bulk of the equipment they used during their eight days docked to the station and stowed the 2,550 pounds of equipment they are bringing home from the station.

Aboard the International Space Station, the Expedition Two crew enjoyed off-duty and exercise time. Commander Yury Usachev and Flight Engineers Susan Helms and Jim Voss did spend time talking with flight controllers in Houston and Moscow about the work ahead of them to get squared away after Atlantis' visit, and to get ready for the next shuttle mission and their replacement crew. The crew is scheduled to go to bed at 1 p.m. CDT today.

Both spacecraft continue to orbit the Earth at an average altitude of 240 statute miles.

Preliminary weather forecasts show generally favorable conditions at the Shuttle Landing Facility tonight, with only a possibility of low clouds and rain within 30 miles of the runway.

The crew will begin its final deorbit preparations around 6:30 p.m. Atlantis' payload bay doors are slated to be closed at 7:49 p.m. and computers on the shuttle will be switched to landing mode at 8:01 p.m. with the crew scheduled to climb into their seats at 9:29 p.m. for the first of tonight's two landing opportunities.

The first opportunity to return to Florida begins with a deorbit burn at 10:29 p.m. resulting in an 11:37 p.m. CDT landing Monday (12:37 a.m. eastern time Tuesday.) If weather precludes a landing on the first opportunity, there is a second landing opportunity beginning with an engine firing at 12:08 a.m. and a landing at 1:14 a.m. Tuesday. For the second landing opportunity, Houston area residents would have an opportunity to watch Atlantis streak through the sky on its return to Florida. Atlantis would pass over the Houston area moving from southwest to east beginning at 12:57 a.m. Atlantis and its plasma trail should be visible in the skies for approximately two minutes as it flies at speeds between Mach 10-12 at an altitude of 130,000 feet, with less than 20 minutes to touchdown in Florida.

Aboard the International Space Station, the Expedition Two crew enjoyed a quiet day on orbit with no scheduled work, though they did spend some time working on items from their Task List. Commander Yury Usachev and Flight Engineers Susan Helms and Jim Voss went to bed at 1 p.m. and are scheduled to awaken at 9:30 p.m.

Both spacecraft continue to orbit the Earth in excellent condition at an average altitude of 240 statute miles.

The forecast for Kennedy Space Center calls for a few scattered clouds and no rain for both landing opportunities this evening.

Atlantis Commander Steve Lindsey, Pilot Charlie Hobaugh and Mission Specialists Janet Kavandi, Mike Gernhardt and Jim Reilly began final deorbit preparations around 5:40 p.m. for the first landing opportunity at KSC. Atlantis' payload bay doors are to be closed at 6:52 p.m. Crewmembers will climb into their seats just after 8:30 p.m. Atlantis' orbital maneuvering system engines will begin firing at 9:32 p.m. to drop the shuttle out of orbit for a 10:39 p.m. CDT landing at KSC on the 3-mile-long Shuttle Landing Facility runway.

A second landing opportunity at KSC would see a deorbit burn at 11:08 p.m. and touchdown at 12:15 a.m. Wednesday.

Aboard the International Space Station, the Expedition Two crew, Commander Yury Usachev and Flight Engineers Susan Helms and Jim Voss, will be awakened just before midnight to resume their full work schedule after two light days of activity. Flight controllers in Moscow successfully performed the fourth of five scheduled orbital adjustment burns using jet thrusters on the Progress supply vehicle docked at the rear of the Service Module Tuesday afternoon. The maneuvers are designed to optimize the station's orbit for the arrival of the next Progress vehicle in August and the Russian Docking Compartment in September.

Both spacecraft are in excellent condition, orbiting at an average altitude of about 240 statute miles.

Atlantis will try again Tuesday night. The first of two opportunities for KSC would see a landing at 10:39 p.m. CDT on the 200th orbit of the mission. The second opportunity for the Florida landing site would see Atlantis touch down on orbit 201 at 12:15 a.m. Wednesday. Weather forecasts for Florida called for improving conditions.

Conditions late Monday and early Tuesday were marginal at the Cape, but very nearly improved enough to permit landing. Showers near the landing strip prevented Atlantis' homecoming, and the decision was made to back off and try again Tuesday night without calling up landing support in California.

Atlantis Commander Steve Lindsey, Pilot Charlie Hobaugh and Mission Specialists Janet Kavandi, Mike Gernhardt and Jim Reilly reopened the shuttle's payload bay doors as they moved through procedures to back out of the landing configuration. The crew was scheduled to go to bed just after 6 a.m. Tuesday, and to be awakened a few minutes after 2 p.m. to begin landing preparations again.

On the International Space Station, the Expedition Two crew awakened about 9:30 p.m. CDT Monday for another day of light duty following the hectic pace of joint operations with the shuttle crew. Commander Yury Usachev and Flight Engineers Susan Helms and Jim Voss were informed of their colleagues' delayed return to Earth. About the only activities scheduled were continued unloading and stowage of the 2,500 pounds of supplies delivered by the Atlantis crew.

Both the shuttle and station continue to orbit at an average altitude of 240 statute miles with all systems working well.

The Atlantis crew, Commander Steve Lindsey, Pilot Charlie Hobaugh and Mission Specialists Janet Kavandi, Mike Gernhardt and Jim Reilly, spent eight days docked to the station during their almost 13-day flight. Reilly and Gernhardt completed three spacewalks to help with Quest's installation and its fitting out with four high-pressure tanks, two oxygen and two nitrogen.

Lindsey and Hobaugh fired Atlantis' orbital maneuvering system engines at 9:32 p.m. CDT to drop the shuttle out of orbit for the 10:39 p.m. landing at KSC on the 3-mile-long Shuttle Landing Facility runway. Their landing was the 55th shuttle landing and the 13th night landing at KSC. Florida weather cooperated beautifully, with none of the rain showers that caused waveoff of two landing opportunities a day earlier.

The Atlantis crew is expected to return to Houston on Thursday for a 4 p.m. public welcome home at Ellington Field's Hangar 990. For updates on crew arrival time at Ellington, please call 281 483-8600.

Aboard the International Space Station, the Expedition Two crew, Commander Yury Usachev and Flight Engineers Susan Helms and Jim Voss, will be awakened just before midnight to resume their full work schedule after two light days of activity. Flight controllers in Moscow successfully performed the fourth of five scheduled orbital adjustment burns using jet thrusters on the Progress supply vehicle docked at the rear of the Service Module Tuesday afternoon. The maneuvers are designed to optimize the station's orbit for the arrival of the next Progress vehicle in August and the Russian Docking Compartment in September.

The station is in excellent condition, orbiting at an average altitude of about 240 statute miles.

The first human spacecraft to launch on an Independence Day holiday, Discovery has begun a journey to resupply and service the International Space Station. Commander Steve Lindsey, Pilot Mark Kelly and Mission Specialists Mike Fossum, Lisa Nowak, Stephanie Wilson, Piers Sellers and Thomas Reiter, a European Space Agency astronaut, lifted off at 1:38 p.m. CDT. The launch followed a flawless countdown.

During the next 12 days, Discovery’s crew will demonstrate techniques for inspecting and protecting the shuttle’s thermal protection system, restore the station to a three-person crew for the first time since May 2003, and replace critical hardware needed for future station assembly. The crew is planned to conduct two spacewalks during the mission. If supplies allow, managers may extend Discovery's flight by an additional day, a day that will be used by the crew to conduct a third spacewalk.

A system of new and upgraded ground-based cameras, radar and airborne cameras aboard high altitude aircraft documented Discovery's launch. That imagery, along with data to be gathered from in-flight inspections, will be used to ensure Discovery's heat shield is in good condition. The in-flight inspections will be performed by the crew using the shuttle's robotic arm, an extension boom and laser system as well as photography to be taken from the station of a back flip the shuttle will perform as it approaches for docking.

Moments after main engine cutoff, less than nine minutes after liftoff, Fossum and Wilson used handheld video and digital still cameras to document the external tank after it separated from the shuttle. That imagery, as well as imagery gathered by cameras in the shuttle’s umbilical well where the tank was connected, will be transmitted to the ground for review.

As Discovery lifted off, the International Space Station was 220 miles above the southern Pacific Ocean, south of Tasmania. Aboard the outpost, Expedition 13 Commander Pavel Vinogradov and Flight Engineer and NASA Science Officer Jeff Williams watched the launch via a television transmission from Mission Control. Discovery is set to dock to the complex at about 9:51 a.m. CDT July 6.

The shuttle crew will test Discovery’s robot arm tomorrow and then use it to grasp a 50-foot long boom extension, called the Orbiter Boom Sensor System. That boom holds the laser system and TV cameras they will use to inspect the shuttle’s wings and heat shield.

During the two spacewalks, Sellers and Fossum will test the capability of the boom extension to be used as a work platform from which repairs could be performed to the shuttle heat shield. They also will repair a cable system on the station’s rail car, a system that will be a base for the station's robotic arm for future assembly work. If the mission is extended by a day, the third spacewalk will be used to test techniques under development for repair of the reinforced carbon-carbon that makes up the heat shield on the shuttle wing edges.

Carried inside the Leonardo multi-purpose logistics module in Discovery’s cargo bay and elsewhere on the shuttle, about 14 tons of hardware and supplies is on its way to the space station. Discovery's crew begins an eight-hour sleep period at 7:38 p.m. CDT. The astronauts will awaken at 3:38 a.m. CDT Wednesday to begin their first full day in orbit.

Today the crew will focus on thermal protection system inspections, preparing for docking to the International Space Station and getting spacesuits ready for two and perhaps three spacewalks.

Commander Steve Lindsey, Pilot Mark Kelly and Mission Specialists Mike Fossum, Lisa Nowak, Stephanie Wilson, Piers Sellers and Thomas Reiter got their wakeup call at 4:08 a.m. CDT, allowing them an extra 30 minutes of sleep after their first day in space ran long. The wakeup song was “Lift Every Voice and Sing” performed by the New Galveston Chorale.

Four crewmembers will spend much of the day looking for damage to Discovery's thermal protection system. Lindsey, Kelly, Fossum and Nowak will use the Orbiter Boom Sensor System (OBSS), a 50-foot boom on the end of the shuttle's robotic Canadarm, to look at the wings' leading edges and the nose cap.

The task involves about 6½ hours of intense work for the crew members. Actual data takes will total about an hour, 20 minutes for each wing and the nose cap. The rest of that time is devoted to very careful movement of the Canadarm and the OBSS.

Later, after lunch, Nowak and Wilson will return the OBSS to its berth on the starboard sill of Discovery's cargo bay. Then they and Fossum will use cameras on the shuttle arm to photograph the outside of Discovery's cabin. That activity should take about an hour.

Wilson also will take digital hand-held camera photos of the orbital maneuvering system pods at the base of the shuttle's vertical tail fin.

Photos and sensor readings from the shuttle, as well as photos of launch and ascent from more than 100 ground-based and airborne cameras and radar and instrument data, will be reviewed by experts on the ground. The data, photos by the station crew and information from subsequent arm surveys at the station and after undocking, will be used to determine if Discovery sustained damage during launch and ascent or in space, to ensure that it is safe for the shuttle to re-enter the atmosphere to land.

In other activities today, Wilson and Reiter will get items on the middeck ready for transfer to the station. Spacewalkers Fossum and Sellers, helped by Kelly, the intravehicular officer who will coach the spacewalkers, will check out spacesuits.

Nowak and Sellers will extend the shuttle docking ring which will help secure Discovery to the station. Just before the shuttle crew goes to bed, Kelly and Sellers will check out and prepare docking tools, including laptop computers.

At 3:30 a.m., Discovery was trailing the station by 9,573 statute miles and closing at a rate of 870 statute miles per orbit. Docking is scheduled for 9:52 a.m. Thursday.

Today the space station crew, Commander Pavel Vinogradov and NASA Science Officer Jeff Williams, will continue to prepare the orbiting laboratory for Discovery's arrival. They will ready the digital cameras with 400mm and 800mm lenses they will use during Discovery’s approach to take high-resolution photos of the shuttle's heat shield. They also will pressurize the Pressurized Mating Adapter 2 at the end of the U.S. laboratory Destiny, where Discovery is scheduled to dock.

The several hours of inspection began just after 6:00 a.m. when Mission Specialists Lisa Nowak and Stephanie Wilson verified proper operation of the Space Shuttle’s robotic arm, then maneuvered it to lift the 50-foot-long OBSS from the starboard sill of the payload bay.

Assisted by Commander Steve Lindsey, Pilot Mark Kelly and Mission Specialist Mike Fossum, Nowak and Wilson began a slow and steady examination of the reinforced carbon-carbon panels along the leading edge of Discovery’s starboard wing just before 8:30 a.m., looking for any evidence of damage.

The inspection using the Laser Dynamic Range Imager, Laser Camera System, and Intensified Television Camera on the end of the boom continued across the shuttle’s nose cap and port wing. After returning the OBSS to its berth, Nowak, Wilson and Fossum spent an hour using the cameras on the shuttle robot arm to scan the outside of the crew cabin.

While the survey proceeded, Mission Specialist Piers Sellers completed the setup of on board computers and cameras and Mission Specialist Thomas Reiter of the European Space Agency prepared Discovery’s middeck for the planned transfer of supplies onto the International Space Station. The first item to be transferred after docking, scheduled for 9:52 a.m. Thursday, is Reiter’s customized seat liner for the Soyuz vehicle; that will make him an official member of the station’s Expedition 13 crew, and the first ISS crewmember who is neither an American nor a Russian.

Sellers and Fossum, who also installed the centerline camera in Discovery’s docking mechanism, completed a checkout of the spacesuits they will wear during scheduled spacewalks on Flight Days 5 and 7. The EVAs will evaluate the combination of ISS robot arm and OBSS as a work platform for astronauts repairing a damaged shuttle orbiter and restore the station’s Mobile Transporter to full operation to support continued station assembly.

On board ISS Commander Pavel Vinogradov and Flight Engineer Jeff Williams prepared the digital cameras with 400mm and 800mm lenses they will use to take high-resolution photos of the shuttle's heat shield when it flies a nose over tail somersault at a range of 600 feet below the station. They also prepared Pressurized Mating Adapter 2, at the forward end of the U.S. laboratory Destiny, where Discovery will dock tomorrow morning.

The astronauts on Discovery were scheduled to be awakened at 2:38 a.m. CDT Thursday to being final preparations for the docking with the ISS.

European Space Agency astronaut Thomas Reiter of Germany was delivered as the newest member of ISS Expedition 13 just hours after Space Shuttle Discovery docked at the station’s Pressurized Mating Adapter 2 at 9:52 a.m. CDT, as the two ships flew above the south Pacific Ocean south of Pitcairn Island.

Commander Steve Lindsey piloted Discovery’s approach to ISS, halting 600 feet directly below the station to perform the rendezvous pitch maneuver: the shuttle was commanded to do a nose-over-tail somersault so ISS Commander Pavel Vinogradov and Flight Engineer Jeff Williams could photograph the thermal protection system tiles on the orbiter’s underside. Imagery experts on the ground will study the high-resolution still pictures for evidence of any damage to the insulating tiles.

Lindsey and his crew—Pilot Mark Kelly and Mission Specialists Mike Fossum, Lisa Nowak, Stephanie Wilson, Piers Sellers and Reiter—greeted the station crewmembers when the hatches between the vehicles were opened at 11:30 a.m. CDT.

After Vinogradov’s safety briefing for the shuttle crew, he helped Reiter install his customized Soyuz seat liner into the Russian rescue vehicle and check his pressurized Sokol suit, finalizing Reiter’s transfer from Discovery to ISS. Other first-day transfers from Discovery included the spacesuits that Sellers and Fossum will wear on their spacewalks out of the Quest airlock on Flight Days 5 and 7.

In preparation for the first EVA, Nowak, Wilson and Williams lifted the Orbiter Boom Sensor System with the station’s robotic arm and handed it over to the shuttle’s robotic arm. During the first spacewalk Sellers and Fossum will simulate orbiter repair tasks while attached to the OBSS/shuttle arm combination to test that 100-foot-long construction crane as a work platform.

On the second spacewalk the astronauts will deliver a spare Pump Module to an external stowage platform before replacing a damaged power and data cable reel assembly in the station’s truss. The repair will allow the Mobile Transporter to move along the truss during installation of new truss segments on future shuttle assembly missions.

It will mark the first time since May 2003 that more than two long-duration crew members have called the orbiting laboratory home.

Discovery, with Commander Steve Lindsey, Pilot Mark Kelly and Mission Specialists Mike Fossum, Lisa Nowak, Stephanie Wilson, Piers Sellers and Thomas Reiter aboard, is scheduled to dock with the station at 9:52 a.m. CDT.

Shortly after the welcome by station Commander Pavel Vinogradov and NASA Science Officer Jeff Williams and a mandatory safety briefing, Reiter will transfer his seat liner to the Soyuz spacecraft attached to the station, making him an official station crewmember. Reiter is a European Space Agency astronaut from Germany, flying under a contract between ESA and the Russian Federal Space Agency.

During Discovery’s approach to the station, Lindsey will pilot the shuttle on what amounts to a back flip, called the Rendezvous Pitch Maneuver. At about 600 feet below the station, the flip will give Vinogradov and Williams a chance to photograph the thermal protection tiles on the bottom of Discovery. Using digital cameras with 400mm and 800mm lenses, they will take a carefully planned series of photos of the shuttle's underside.

The images will be downlinked for study by experts on the ground, starting with the more detailed images from the 800mm lens. More 800mm photos will be taken than during Discovery's approach during STS-114. One increased photo emphasis will be looking for protruding gap fillers, like those removed by STS-114 spacewalker Steve Robinson last year.

These photos and other data, including images from more than 100 cameras on the ground, in aircraft and on the shuttle, as well as data from the shuttle arm and the Orbital Boom Sensor System (OBSS) attached to it, will be used, along with data from subsequent surveys, to make sure that Discovery sustained no major damage on launch, ascent and in orbit.

About three hours after docking, both crews get to work with more robotic operations to prepare for additional surveys. Nowak, Wilson and Williams will operate the space station robotic arm, Canadarm2, from inside the Destiny Lab.

They will use the arm to lift the OBSS from Discovery's payload bay sill and hand it over to the shuttle arm, operated by Lindsey and Fossum. Clearance restraints around the shuttle’s docking mechanism do not allow the shuttle arm to grapple the boom on its own.

Transfer of cargo from the shuttle's middeck including spacesuits will begin shortly after docking. At least two spacewalks are scheduled, one on Saturday and another on Monday. A third may be done if the mission is extended a day.

Discovery’s crew was awakened at 2:38 a.m. Thursday by "Daniel," performed by Elton John and dedicated to Reiter. The station crew was awakened at the same time by its standard wakeup tone.

The first task of the day will be the relocation of the Leonardo Multi-Purpose Logistics Module (MPLM) from the shuttle payload bay onto the station’s Unity Module. Mission Specialists Lisa Nowak, Stephanie Wilson, Mike Fossum and Piers Sellers will use the station robotic arm, Canadarm2, to maneuver the module, with help from pilot Mark Kelly.

Once successfully mated to its temporary position on the station, shuttle Commander Steve Lindsey and new Expedition 13 Flight Engineer Thomas Reiter will conduct leak checks and enter the pressurized cargo container. Wilson will lead the transfer activities, which are scheduled to continue until next Thursday.

Later, using the shuttle robotic arm and boom system, Kelly, Nowak and Wilson will conduct additional inspections of the orbiter’s thermal protection system. They will target a few specific areas on the shuttle’s nose cap that were missed on the initial scans, as well as two gap fillers that appear to be protruding from Discovery’s underside. They also intend to get a closer look at a piece of fabric near the shuttle nose.

Fossum and Sellers will make preparations for Saturday’s planned spacewalk. They will configure tools and the U.S. airlock Quest for the spacewalk. They will repair the station's mobile transporter and test the capability of the robotic arm boom extension to carry spacewalkers. The results of that test will help engineers understand the feasibility of using the arm for thermal system inspections and repairs if needed on later flights.

The crew has time set aside at the end of the day for a review of the spacewalk procedures.

The newly augmented space station crew, including Flight Engineer Jeff Williams and Commander Pavel Vinogradov, will work closely with the shuttle crew, assisting with transfer activities and robotic arm operations.

Some crewmembers will talk with journalists. Lindsey and Kelly will chat in the morning with radio reporters from CBS, Fox, ABC and National Public Radio. Toward the end of the day, the Expedition crew will speak with CNN, CBS News and the Associated Press.

The space shuttle crew awoke at 2:14 a.m. CDT by the Beatles’ "Good Day Sunshine" dedicated to first time spaceflyer Lisa Nowak. The Expedition 13 crew awoke 30 minutes later with their standard wake up tone.

Spacewalkers Piers Sellers and Mike Fossum have two major tasks. First they will work to ensure that the second power and data cable linking the mobile transporter to the rest of the station is spared the fate of the mobile transporter's other trailing umbilical system cable. It was inadvertently severed by its safety cutter last December. The second activity is to test the capability of the shuttle's robotic arm and its 50-foot extension to act as a platform for spacewalkers making repairs.

Expedition 12 crewmembers tried to install a safety bolt to protect the remaining cable. They were unable to insert the bolt, so they removed the cable from the emergency cutter.

Sellers and Fossum will install a device to block the cutter blade. If that doesn't work, they'll install a new unit, called an interface umbilical assembly, thi