The final Series A Atlas missile (16A) was launched from Cape Canaveral. Of the eight research and development launches, five had been failures, but each had provided vast quantities of important data. Last Atlas A flight, considered fully successful. Four of the eight flights were considered successful.

At 9 am Tereshkova, Solovyova, and Ponomaryova practice donning and doffing their space suits. Bykovskiy and Volynov prepare their ship's logs. Korolev discusses plans for tests of the cosmonaut's ability to discern objects from space. Colonel Kirillov completes preparation of the spacecraft for flight.

The second manned and first long-duration mission in the Gemini program. Major objectives of the four-day mission were demonstrating and evaluating the performance of spacecraft systems in a long-duration flight and evaluating effects on the crew of prolonged exposure to the space environment. Secondary objectives included demonstrating extravehicular activity (EVA) in space, conducting stationkeeping and rendezvous maneuvers with the second stage of the launch vehicle, performing significant in-plane and out-of-plane maneuvers, demonstrating the ability of the orbit attitude and maneuver system (OAMS) to back up the retrorockets, and executing 11 experiments. The stationkeeping exercise was terminated at the end of the first revolution because most of the OAMS propellant allocated for the exercise had been used; further efforts would jeopardize primary mission objectives and could mean the cancellation of several secondary objectives. No rendezvous was attempted. The only other major problem to mar the mission was the inadvertent alteration of the computer memory during the 48th revolution in an attempt to correct an apparent malfunction. This made the planned computer-controlled reentry impossible and required an open-loop ballistic reentry. All other mission objectives were met. The flight crew began preparing for EVA immediately after terminating the stationkeeping exercise. Although preparations went smoothly, McDivitt decided to delay EVA for one revolution, both because of the high level of activity required and because deletion of the rendezvous attempt reduced the tightness of the schedule. Ground control approved the decision. The spacecraft hatch was opened at 4 hours 18 minutes into the flight and White exited 12 minutes later, using a hand-held maneuvering gun. White reentered the spacecraft 20 minutes after leaving it. The hatch was closed at 4 hours 54 minutes ground elapsed time. Drifting flight was maintained for the next two and one-half days to conserve propellant. The spacecraft landed in the Atlantic Ocean about 725 km east of Cape Kennedy - some 65 km from its nominal landing point. The crew boarded a helicopter 34 minutes after landing and was transported to the prime recovery ship, the aircraft carrier Wasp. Spacecraft recovery was completed at 2:28 p.m., a little more than 100 hours after Gemini 4 had been launched. Gemini 4 was the first mission to be controlled from the mission control center in Houston.

The space walk was hurriedly included after the Russian first in Voskhod 2. White seemed to have a lot more fun than Leonov and McDivitt took the pictures that came to symbolize man in space. With this flight the US finally started to match Russian flight durations.

At the first launch attempt, while the crew waited buttoned up in the spacecraft on the pad, their Agena docking target field blew up on the way to orbit. NASA decided to use an Atlas to launch an Agena docking collar only. This was called the Augmented Target Docking Adapter. Ths was successfully launched and the Gemini succeeded in rendezvousing with it. However, the ATDA shroud had not completely separated, thus making docking impossible. However three different types of rendezvous were tested with the ATDA. Cernan began his EVA, which was to include flight with a USAF MMU rocket pack but the Gemini suit could not handle heat load of the astronaut's exertions. Cernan's faceplate fogs up, forcing him to blindly grope back into the Gemini hatch after only two hours.

Seventh manned and third rendezvous mission of the Gemini program. Major objectives of the mission were to rendezvous and dock with the augmented target docking adapter (ATDA) and to conduct extravehicular activities (EVA). These objectives were only partially met. After successfully achieving rendezvous during the third revolution - a secondary objective - the crew discovered that the ATDA shroud had failed to separate, precluding docking - a primary objective - as well as docking practice - another secondary objective. The crew was able, however, to achieve other secondary objectives: an equi-period rendezvous, using onboard optical techniques and completed at 6 hours 36 minutes ground elapsed time; and a rendezvous from above, simulating the rendezvous of an Apollo command module with a lunar module in a lower orbit (completed at 21 hours 42 minutes ground elapsed time). Final separation maneuver was performed at 22 hours 59 minutes after liftoff. EVA was postponed because of crew fatigue, and the second day was given over to experiments. The hatch was opened for EVA at 49 hours 23 minutes ground elapsed time. EVA was successful, but one secondary objective - evaluation of the astronaut maneuvering unit (AMU) - was not achieved because Cernan's visor began fogging. The extravehicular life support system apparently became overloaded with moisture when Cernan had to work harder than anticipated to prepare the AMU for donning. Cernan reentered the spacecraft, and the hatch was closed at 51 hours 28 minutes into the flight. The rest of the third day was spent on experiments.

All is normal aboard Soyuz 9. At 10:00 there is an operational management meeting. There are worries the crew did not engage and disengage the orientation engines at the time scheduled for an engine burn. Kamanin defends the crew -- this was not a mistake, it took the crew 50 minutes to go through the same exercises that took 30 minutes on the ground, and therefore they were delayed in being able to conduct the manoeuvre. There is a television communications session in the evening. The crew looks all right, but Sevastyanov's face is visibly swollen.

The cosmonauts play tennis in the morning. There are two dysentery cases in the staff at Area 2. Contact between the officers and workers at the centre is minimised. The Soyuz 11 crew undergoes their final medical checkups. A spot is found on Kubasov's lung in the x-ray. The doctors say it is the beginning of tuberculosis, and prohibit him from flying in space! Mishin, backed by Moscow, says that under mission rules, this means the Dobrovolsky back-up crew will have to fly in place of Leonov's crew. Kamanin feels uncomfortable with the decision, but can make no good argument for his preference - just replacing Kubasov on Leonov's crew with Volkov. The Launch Commission decides that Soyuz 11 is to be rolled out to the pad at 06:00 on 4 June, with launch at 07:39 on 6 June, with Dobrovolsky's crew aboard.

Russian test pilot. Graduated from the Zhukovsky, 1950. Worked as an engineer and senior test pilot for Tupolev. Flew MiG-21 Tu-144 wing testbed. Proposed on 1964-06-29 as cosmonaut for Voskhod flights, but not confirmed. Died in the crash of a Tu-144 supersonic transport during an aviation demonstration at the 1973 Paris Airshow in Le Bourget.

Russian test pilot cosmonaut, 1977-1977. Flying Research Institute named for Gromov of GKOOP. Selected as a cosmonaut for the Buran program by the Gromov Flight Test Center, but the selection was not confirmed by the government commission. Died in the crash of a MiG-23 with Mamontov.

Subscale Spiral spaceplane. After 1.25 revolutions of the earth, deorbited and recovered by Soviet naval forces in the Indian Ocean at 17 degrees South, 98 degrees East, 560 km south of Cocos Islands. Made a 600 km cross-range maneuver during reentry. The recovery was filmed by an Australian Orion reconnaissance aircraft, revealing the configuration to the West for the first time.