Alphabetic Index - d D - Intercontinental cruise missile - Russia - See Tu-133 D - Orbital launch vehicle - Russia (Library of Congress Designation) - See Proton 8K82 D - Spacecraft - Earth - Geodetic - France D-1 - Tactical ballistic missile - Russia D-1 - Orbital launch vehicle - Russia (Library of Congress Designation) - See Proton 8K82K D-1 - Short range ballistic missile - Russia (Launch System Designation) - See R-11FM D-1 - Spacecraft - Manned - Space Suits - USA D-1 - Rocket Engine - Russia - Isopropylnitrate propellants - 39.000 kN D-100 - Rocket Engine - Russia - Electric/Xenon propellants - 0.07 N - See D-100-II D-100 - Rocket Engine - Russia - Electric/Xenon propellants - 0.25 N - See TM-50 D-100 - Rocket Engine - Russia - Electric/Xenon propellants - 0.03 N - See TAL-100 D-100 - Rocket Engine - Russia - Electric/Xenon propellants - 0.00 N - See D-20 D-100-II - Rocket Engine - Russia - Electric/Xenon propellants - 0.07 N D-11 - Intermediate range cruise missile - Russia (Launch System Designation) - See R-31 D-18T - Rocket Engine - Ukraine - Air/Kerosene propellants - 229.400 kN D-19M - Intercontinental ballistic missile - Russia (Launch System Designation) - See Bulava D-1e - Orbital launch vehicle - Russia (Library of Congress Designation) - See Proton 8K82K / 11S86 D-1e - Orbital launch vehicle - Russia (Library of Congress Designation) - See Proton 8K82K / 11S861-01 D-1e - Orbital launch vehicle - Russia (Library of Congress Designation) - See Proton 8K82K / 11S824F D-1e - Orbital launch vehicle - Russia (Library of Congress Designation) - See Proton 8K82K / 11S824M D-1e - Orbital launch vehicle - Russia (Library of Congress Designation) - See Proton 8K82K / 11S861 D-1e - Orbital launch vehicle - Russia (Library of Congress Designation) - See Proton 8K82K / 11S824 D-1e - Orbital launch vehicle - Russia (Library of Congress Designation) - See Proton 8K82K / 17S40 D-2 - Tactical ballistic missile - Russia D-2 - Rocket Engine - Russia - Lox/Kerosene propellants - 1373.000 kN D-2 - Intermediate range ballistic missile - Russia (Launch System Designation) - See R-13 D-2 - Rocket Engine - Russia - Lox/Kerosene propellants - 1373.000 kN D-20 - Rocket Engine - Russia - Electric/Xenon propellants - 0.00 N D-21 - Drone - USA D-21 - Drone - USA (US Department of Defence Designation) D-3 - Intermediate range ballistic missile - Russia (Launch System Designation) - See R-15 D-38 - Rocket Engine - Russia - Electric/Xenon propellants - 0.01 N - See TAL-38 D-4 - Intermediate range ballistic missile - Russia (Launch System Designation) - See R-21 D-50G1 - Rocket Engine - USA - Lox/Alcohol propellants - 225.00 N - See LR39 D-54 - Rocket Engine - Russia - Lox/LH2 propellants - 392.000 kN - See RD-54 D-55 - Rocket Engine - Russia - Electric/Xenon propellants - 0.01 N - See TAL-WSF D-558-1 - Spacecraft - Manned - Rocketplane - USA D-558-2 - Spacecraft - Manned - Rocketplane - USA D-558-3 - Spacecraft - Manned - Rocketplane - USA D-6 - Intermediate range ballistic missile - Russia D-6 - Intermediate range ballistic missile - Russia (Launch System Designation) D-7 - Rocket Engine - Russia - Isopropylnitrate propellants - 11.800 kN DAC Helios - Nuclear orbital launch vehicle - USA DAC Helios ISI - Nuclear orbital launch vehicle - USA Dac Roc - Sounding rocket - USA DAD - Spacecraft - Earth - Atmosphere - USA Dadieu - Armin Dadieu - German Rocket expert - Dahm - Werner Dahm - German Rocket engineer - Dailey - John R Dailey - American Manager - Dal - Surface-to-air missile - Russia Dal - Surface-to-air missile - Russia (Launch System Designation) Dal-2 - Surface-to-air missile - Russia Dal-M - Surface-to-air missile - Russia Dal-M - Surface-to-air missile - Russia (Launch System Designation) - See Dal-2 Dal-M - Surface-to-air missile - Russia (Launch System Designation) Dana - William Harvey 'Bill' Dana - American Pilot Test Pilot - USAF Dynasoar Group - 1960, Test Pilot (NASA) Danchik - Robert J Danchik - Engineer - Daniel - Test vehicle - France Danish space history - - See Denmark Dannenberg - Konrad Dannenberg - German Engineer - Dantscher - Josef Dantscher - German Test pilot - Darevskiy - Sergei Grigoryevich Darevskiy - Russian Engineer - DARPASAT - Spacecraft - Technology - - USA Dart - Tactical ballistic missile - USA DART - Spacecraft - Technology - - Darter - Air-to-air missile - South Africa Darter - Air-to-air missile - South Africa Dash - Spacecraft - Technology - Military - USA DASH 2002 - Spacecraft - Technology - RV - Japan Datil - Suborbital Launch Site in USA. Dauphin - Sounding rocket - France Daus - Daus - German Engineer - Davies - Merton E Davies - American Scientist - Davis - Dr Nancy Jan Davis - American Mission Specialist Astronaut - NASA Group 12 - 1987 Davis-Monthan AFB - ICBM Base in USA. Davy Crockett M-28 - Tactical ballistic rocket - USA Davy Crockett XM-29 - Tactical ballistic rocket - USA Dawn - Spacecraft - - - Dawn-1 - Spacecraft - Manned - Spacecraft - China - See Shuguang 1 Day - Melvin Sherman Day - American Manager - Daylight Rover - Spacecraft - Manned - Lunar Rover - USA DBS - Space Project - Communications - DBS - Space Project - Communications - DC-I - VTOVL orbital launch vehicle - USA - See DC-Y DC-I - Spacecraft - Manned - Spacecraft - USA - See DC-Y DC-X - VTOVL test vehicle - USA DC-X2 - VTOVL orbital launch vehicle - USA DC-XA - VTOVL test vehicle - USA - See DC-X DC-Y - VTOVL orbital launch vehicle - USA DC-Y - Spacecraft - Manned - Spacecraft - USA De Beek - Gerd Wilhelm De Beek - German Rocket engineer - de Bergerac - Cyrano de Bergerac - French Writer - De Winne - Frank De Winne - Belgian Physician Astronaut - ESA Group 3 - 1998 Deacon - Launch Vehicle Family Deacon - Sounding rocket - USA Deacon Arrow II - Sounding rocket - USA Deacon HVAR - Sounding rocket - USA Deacon Judi - Sounding rocket - USA Deacon Sidewinder - Sounding rocket - USA DeArmond - Frank Maxton DeArmond - American Manned Spaceflight Engineer Astronaut - DoD Group 3 - 1985 Debus - Kurt Heinrich Debus - German American Manager - Debut - Spacecraft - Technology - - Japan Dediu - Dumitru Dediu - Romanian Pilot Cosmonaut - Intercosmos Group - 1978 Dedkov - Anatoli Ivanovich Dedkov - Belarusian Pilot Cosmonaut - Air Force Group 5 - 1970 Deep Impact - Spacecraft - Planetary - Comet - USA Deep Space 1 - Spacecraft - Planetary - Asteroid - USA Defense Meteorological Satellite Program - Spacecraft - Earth - Weather - USA - See DMSP Block 5C Defense Meteorological Satellite Program - Spacecraft - Earth - Weather - USA - See DMSP Block 5D Defense Meteorological Satellite Program - Spacecraft - Earth - Weather - USA - See DMSP Block 4A Defense Meteorological Satellite Program - Spacecraft - Earth - Weather - USA - See DMSP Block 5A Defense Meteorological Satellite Program - Spacecraft - Earth - Weather - USA - See DMSP Block 5D-2 Defense Meteorological Satellite Program - Spacecraft - Earth - Weather - USA - See DMSP Block 5B Defense Satellite Communications System - Spacecraft - Communications - Military - USA - See DSCS III Defense Satellite Communications System - Spacecraft - Communications - Military - USA - See DSCS II Defense Support Program - Spacecraft - Early Warning - - USA - See DSP DeFrance - Smith J DeFrance - American Engineer - Degenkolb - Gerd Degenkolb - German Phantom cosmonaut - Degtyarov - Dr Vladimir Aleksandrovich Degtyarov - Russian Physician Cosmonaut - Air Force Group 3 - 1965 Dellmeier - Dellmeier - German Engineer - Delta - Launch Vehicle Family Delta - Orbital launch vehicle - USA Delta 0100 - Orbital launch vehicle - USA Delta 1000 - Orbital launch vehicle - USA Delta 2000 - Orbital launch vehicle - USA Delta 3 - Orbital launch vehicle - USA Delta 3000 - Orbital launch vehicle - USA Delta 4 - 2 - Spacecraft - Tug - - USA Delta 4000 - Orbital launch vehicle - USA Delta 4H - 2 - Spacecraft - Tug - - USA Delta 5000 - Orbital launch vehicle - USA Delta 6000 - Orbital launch vehicle - USA Delta 7000 - Orbital launch vehicle - USA Delta 7000H - - USA Delta A - Orbital launch vehicle - USA Delta B - Orbital launch vehicle - USA Delta C - Orbital launch vehicle - USA Delta Clipper - VTOVL orbital launch vehicle - USA - See DC-Y Delta Clipper - Spacecraft - Manned - Spacecraft - USA - See DC-Y Delta Clipper Experimental - VTOVL test vehicle - USA - See DC-X Delta Clipper-Experimental - VTOVL test vehicle - USA - See DC-X Delta Clipper-Prototype - VTOVL orbital launch vehicle - USA - See DC-X2 Delta D - Orbital launch vehicle - USA Delta Dart - Drone - USA Delta Dart - Drone - USA Delta E - Orbital launch vehicle - USA Delta G - Orbital launch vehicle - USA Delta III - Orbital launch vehicle - USA - See Delta 3 Delta IV Heavy - Orbital launch vehicle - USA Delta IV Heavy Upgrade 30 t - Orbital launch vehicle - USA Delta IV Heavy Upgrade 35 t - Orbital launch vehicle - USA Delta IV Heavy Upgrade 40 t - Orbital launch vehicle - USA Delta IV Heavy Upgrade 42 t - Orbital launch vehicle - USA Delta IV Heavy Upgrade 43 t - Orbital launch vehicle - USA Delta IV Heavy Upgrade 45 t - Orbital launch vehicle - USA Delta IV Heavy Upgrade 48 t - Orbital launch vehicle - USA Delta IV Heavy Upgrade 53 t - Orbital launch vehicle - USA Delta IV Heavy Upgrade 67 t - Orbital launch vehicle - USA Delta IV Heavy Upgrade 70 t - Orbital launch vehicle - USA Delta IV Heavy Upgrade 76 t - Orbital launch vehicle - USA Delta IV Heavy Upgrade 87 t - Orbital launch vehicle - USA Delta IV Heavy Upgrade 94 t - Orbital launch vehicle - USA Delta IV Medium - Orbital launch vehicle - USA Delta IV Medium+ (4.2) - Orbital launch vehicle - USA Delta IV Medium+ (5.2) - Orbital launch vehicle - USA Delta IV Medium+ (5.4) - Orbital launch vehicle - USA Delta IV Small - Orbital launch vehicle - USA Delta J - Orbital launch vehicle - USA Delta L - Orbital launch vehicle - USA Delta M - Orbital launch vehicle - USA Delta N - Orbital launch vehicle - USA DeLucas - Dr Lawrence (Larry) James DeLucas - American Payload Specialist Astronaut - Dementiev - Petr Vasilyevich Dementiev - Russian Government Official - Demin - Lev Stepanovich Demin - Russian Engineer Cosmonaut - Air Force Group 2 - 1963 Dempsey - James Raymon Dempsey - American Manager - Demyanenko - Anatoly Pavlovich Demyanenko - Soviet Engineer Cosmonaut - Vulkan Engineering Group - 1968 Deng Qingming - Deng Qingming - Chinese Pilot Yuhangyuan - China Group 1 - 1998 Denmark - Danish space history Denner - Denner - German Major in the Army - Deppe - Hans Deppe - German Rocket engineer - Derezhnya - IRBM Base in Ukraine operated by Russia. - See Belokorovichi Derzhavinsk - ICBM Base in Kazakhstan operated by Russia. Descent Module - Spacecraft - Manned - Spacecraft Module - - See MRC DM Descent Stage - Spacecraft - Manned - Spacecraft Module - - See Apollo LM DS Design Reference Mission 1 - Spacecraft - Manned - Mars Expedition - USA Design Reference Mission 3 - Spacecraft - Manned - Mars Expedition - USA Design Reference Mission 4 NTR - Spacecraft - Manned - Mars Expedition - USA Design Reference Mission 4 SEP - Spacecraft - Manned - Mars Expedition - USA Detroye - Jeffrey Eliot Detroye - American Manned Spaceflight Engineer Astronaut - DoD Group 1 - 1979 Dettmering - Wilhelm Heinrich Dettmering - German Professor - Deucker - Deucker - German Rocket technician - Deutch - John Deutch - American Manager - Dezhurov - Vladimir Nikolayevich Dezhurov - Russian Pilot Cosmonaut - Air Force Group 8 - 1987 DF-1 - Intermediate range ballistic missile - China DF-1 (before 1964) - Intermediate range ballistic missile - China - See DF-3 DF-11 - Short range ballistic missile - China DF-15 - Intermediate range ballistic missile - China DF-2 - Intermediate range ballistic missile - China DF-21 - Intermediate range ballistic missile - China DF-3 - Intermediate range ballistic missile - China DF-3 Tsien - Intercontinental ballistic missile - China DF-31 - Intercontinental ballistic missile - China DF-4 - Intermediate range ballistic missile - China DF-41 - Intercontinental ballistic missile - China DF-5 - Intercontinental ballistic missile - China DF-57 - Intercontinental ballistic missile - China DFH-1 - Spacecraft - Technology - Communications - China DFH-2 - Spacecraft - Communications - Military - China DFH-2 AKM - Rocket Engine - China - Solid propellants - 43.460 kN DFH-3 - Spacecraft - Communications - - China DFH-4 - Spacecraft - Communications - Military - China DFS - Space Project - Communications - DFS - Space Project - Communications - Dhom - Friedrich Dhom - German Rocket engineer - Diadem - Spacecraft - Earth - Geodetic - France Dial MIKA - Spacecraft - Technology - - France DIAL WIKA - Spacecraft - Technology - - Germany Diamant A - Orbital launch vehicle - France Diamant B - Orbital launch vehicle - France Diamant BP.4 - Orbital launch vehicle - France Dietrich - Jan Dietrich - American Pilot Astronaut - Mercury 13 - 1961 Dietrich Marion - Marion Dietrich - American Pilot Astronaut - Mercury 13 - 1961 Digges - Thomas Digges - British Scientist - Direct Measurement Explorer - Spacecraft - Earth - Ionosphere - USA - See DME Disaster Monitoring Constellation - Spacecraft - Surveillance - Civilian - China Discovery - Space Project - Planetary - Discovery - Space Project - Planetary - Discovery - Spacecraft - Manned - Spaceplane - USA Disney - Walt Disney - American Artist - Dittmar - Heinrich Dittmar - German Test pilot - Diver - Anti-submarine missile - USA Divine Arrow - Orbital launch vehicle - China - See CZ-2F Dixon - Thomas F Dixon - American Engineer - DLB - Space Project - Manned - Lunar base DLB - Space Project - Manned - Lunar base DLB Beacon Lander - Spacecraft - Manned - Lunar Logistics - Russia DLB Lunar Base - Spacecraft - Manned - Lunar Base - Russia DLB Lunokhod 1 - Spacecraft - Manned - Lunar Rover - Russia DLB Lunokhod 2 - Spacecraft - Manned - Lunar Rover - Russia DLB Lunokhod 3 - Spacecraft - Manned - Lunar rover - Russia DLB Module - Spacecraft - Manned - Lunar Habitat - Russia DLR Group 1 - 1987 - Astronaut training group DLR Group 2 - 1990 - Astronaut training group DME - Spacecraft - Earth - Ionosphere - USA Dmitri - Spacecraft - Manned - Space Station - Russia - See Kvant-2 Dmitriev - Igor Fedorovich Dmitriev - Russian Government Official - Dmitriev Pavel - Pavel Pavlovich Dmitriev - Russian Military Officer - DMLRV - Spacecraft - Manned - Lunar Rover - USA DMSP - Space Project - Earth - Weather DMSP - Space Project - Earth - Weather DMSP Block 4A - Spacecraft - Earth - Weather - USA DMSP Block 5A - Spacecraft - Earth - Weather - USA DMSP Block 5B - Spacecraft - Earth - Weather - USA DMSP Block 5C - Spacecraft - Earth - Weather - USA DMSP Block 5D - Spacecraft - Earth - Weather - USA DMSP Block 5D-2 - Spacecraft - Earth - Weather - USA DMSP Block 5D-3 - Spacecraft - Earth - Weather - USA DMT-600 - Rocket Engine - Russia - N2O4/UDMH propellants - 600.00 N DMT-600 MMH - Rocket Engine - Russia - N2O4/MMH propellants - 600.00 N Dobele - IRBM Base in Latvia operated by Russia. Dobrick - Werner Dobrick - German Rocket engineer - Dobrokvashina - Dr Yelena Ivanovna Dobrokvashina - Russian Physician Cosmonaut - IMBP Group 3 - 1980, Female Group - 1980 Dobrovolsky - Georgi Timofeyevich Dobrovolsky - Russian Pilot Cosmonaut - Air Force Group 2 - 1963 DoD Group 1 - 1979 - Astronaut training group DoD Group 2 - 1982 - Astronaut training group DoD Group 3 - 1985 - Astronaut training group DODECAPOLE - Spacecraft - Calibration - - USA DODGE - Spacecraft - Technology - Gravity gradient - USA Doetsch Hans - Hans Doetsch - German Professor - Doi - Dr Takao Doi - Japanese Mission Specialist Astronaut - NASDA Group - 1985, NASA Group 15 - 1995 DOK-10 - Rocket Engine - Russia - Hydrazine propellants - 10.00 N DOK-50 - Rocket Engine - Russia - Hydrazine propellants - 50.00 N Dokhov - Mikhail Tutovich Dokhov - Russian Military Officer - Dolgopolov - Gennadi Aleksandrovich Dolgopolov - Russian Engineer Cosmonaut - Energia Engineer Group 1 - 1966 Dolgov - Piotr Dolgov - Phantom cosmonaut - Phantom Cosmonaut Dolgov Aleksey - Aleksey Mikhailovich Dolgov - Russian Military Officer - Dollhopf - Dollhopf - German Rocket engineer - Dolphin - Low cost test vehicle - USA Dombarovskiy - ICBM Base in Russia. Dombarovskiy - ICBM Base in Russia. Domrachev - Aleksandr Vasiliyevich Domrachev - Russian Government Official - Don - Spacecraft - Surveillance - Military - Russia - See Orlets-1 Dong Fang Hong - Spacecraft - Communications - Military - China - See DFH-4 Dong Fang Hong - Spacecraft - Communications - - China - See DFH-3 Dong Feng-15 - Intermediate range ballistic missile - China - See DF-15 Dong Feng-21 - Intermediate range ballistic missile - China - See DF-21 Dong Xiaohai - Dong Xiaohai - Chinese Pilot Yuhangyuan - Shuguang Group - 1970 Dong-Feng 1 - Intermediate range ballistic missile - China - See DF-1 Dong-Feng 2 - Intermediate range ballistic missile - China - See DF-2 Dong-Feng 3 - Intermediate range ballistic missile - China - See DF-3 Dong-Feng 31 - Intercontinental ballistic missile - China - See DF-31 Dong-Feng 4 - Intermediate range ballistic missile - China - See DF-4 Dong-Feng 5 - Intercontinental ballistic missile - China - See DF-5 Dong-Feng 57 - Intercontinental ballistic missile - China - See DF-57 Donovan - Allen Frances Donovan - American Engineer - Doolittle - James H Doolittle - American Manager - Doorknob - Test vehicle - USA Dore - Frank J Dore - American Engineer - Dorian, AFP-632, KH-10 - Spacecraft - Manned - Space Station - USA - See MOL Dorman - Bernhardt L Dorman - Jewish American Engineer - Dornberger - Gen Dr.-Ing E h Walter Robert Dornberger - German American Manager - Dorofeyev - Boris Arkadyevich Dorofeyev - Russian Engineer - DOS 17KS-12701 - Spacecraft - Manned - Space Station - Russia - See Mir DOS 2-1 - Manned spaceflight - Salyut program (Cancelled flight) DOS 2-2 - Manned spaceflight - Salyut program (Cancelled flight) DOS 2-3 - Manned spaceflight - Salyut program (Cancelled flight) DOS 2-4 - Manned spaceflight - Salyut program (Cancelled flight) DOT - Sounding rocket - USA DOT-25 - Rocket Engine - Russia - Hydrazine propellants - 25.00 N DOT-5 - Rocket Engine - Russia - Hydrazine propellants - 5.00 N Double Cajun T40 - Sounding rocket - USA Double Deacon - Sounding rocket - USA Double FFAR - Sounding rocket - USA Double Star - Spacecraft - Earth - Magnetosphere - China Douglas Astro - Winged orbital launch vehicle - USA Douglas Astro - Spacecraft - Manned - Spaceplane - USA Douglas Clipper - VTOVL orbital launch vehicle - USA - See DC-Y Douglas HATV - Orbital launch vehicle - USA Dove - Air-to-surface missile - USA DP - Intercontinental boost-glide missile - Russia - See Tu-123 DP - Intercontinental boost-glide missile - Russia - See Tu-130 Draco - Sounding rocket - USA Dragon - Sounding rocket - France Dragon - Anti-tank missile - USA - See Dragon FGM-77A Dragon - Spacecraft - Manned - Spacecraft - USA Dragon FGM-77A - Anti-tank missile - USA Dragun - Dmitri Konstantinovich Dragun - Russian Engineer - Draper - Charles Stark Draper - American Engineer - Drawe - Gerhardt Drawe - German Rocket engineer - Dream Chaser - Spacecraft - Manned - Spaceplane - USA Drew - Benjamin Alvin Drew - American Engineer Astronaut - NASA Group 18 - 2000 Drew Russell - Russell C Drew - American Scientist - Drews Erich - Erich Drews - German Coppersmith - DRM 1 Mars Local Rover - Spacecraft - Manned - Mars Rover - USA DRM 1 Mars Rover - Pressurized - Spacecraft - Manned - Mars Rover - USA DRM1 - Orbital launch vehicle - USA Drobov - Serfaim Alekseyevich Drobov - Russian Military Officer - Drovyanaya - ICBM Base in Russia. Drovyanaya - ICBM Base in Russia. DRTS - Spacecraft - Communications - - Japan Druzhinin - Mikhail Ivanovich Druzhinin - Russian Military Officer - Dryden - Hugh L Dryden - American Manager - DS - Space Project - Military - ASAT DS - Space Project - Military - ASAT DS - Spacecraft family DS-1 - Spacecraft - Technology - - Ukraine DS-2 - Spacecraft - Technology - - Ukraine DS2000 - Spacecraft - Communications - - Japan DS-A1 - Spacecraft - Earth - Magnetosphere - Ukraine DSCS - Space Project - Communications - Military DSCS - Space Project - Communications - Military DSCS II - Spacecraft - Communications - Military - USA DSCS III - Spacecraft - Communications - Military - USA DSE-Alpha - Spacecraft - Manned - Lunar Flyby - Russia DS-K-40 - Spacecraft - Technology - - Ukraine DS-K-8 - Spacecraft - Earth - Micrometeoroid - Ukraine DSL HTHL - Winged orbital launch vehicle - Germany DS-MG - Spacecraft - Earth - Magnetosphere - Ukraine DS-MO - Spacecraft - Technology - - Ukraine DS-MT - Spacecraft - Astronomy - Cosmic Ray - Ukraine DSP - Spacecraft - Early Warning - - USA DS-P1 - Spacecraft - Military - Target - Ukraine DS-P1-I - Spacecraft - Military - Target - Ukraine DS-P1-M - Spacecraft - Military - ASAT Target - Ukraine DS-P1-Yu - Spacecraft - Military - Target - Ukraine DST-100 - Rocket Engine - Russia - N2O4/UDMH propellants - 100.00 N DST-100A - Rocket Engine - Russia - N2O4/UDMH propellants - 100.00 N DST-200 - Rocket Engine - Russia - N2O4/UDMH propellants - 200.00 N DST-200A - Rocket Engine - Russia - N2O4/UDMH propellants - 200.00 N DST-25 - Rocket Engine - Russia - N2O4/UDMH propellants - 25.00 N DS-U1-A - Spacecraft - Earth - Ionosphere - Ukraine DS-U1-G - Spacecraft - Earth - Ionosphere - Ukraine DS-U1-IK - Spacecraft - Earth - Ionosphere - Ukraine DS-U1-R - Spacecraft - Earth - Atmosphere - Ukraine DS-U1-Ya - Spacecraft - Earth - Magnetosphere - Ukraine DS-U2-D - Spacecraft - Earth - Magnetosphere - Ukraine DS-U2-GF - Spacecraft - Solar - - Ukraine DS-U2-GK - Spacecraft - Earth - Magnetosphere - Ukraine DS-U2-GKA - Spacecraft - Earth - Magnetosphere - Ukraine DS-U2-I - Spacecraft - Earth - Ionosphere - Ukraine DS-U2-IK - Spacecraft - Earth - Ionosphere - Ukraine DS-U2-IP - Spacecraft - Earth - Ionosphere - Ukraine DS-U2-K - Spacecraft - Earth - Magnetosphere - Ukraine DS-U2-M - Spacecraft - Technology - - Ukraine DS-U2-MG - Spacecraft - Earth - Magnetosphere - Ukraine DS-U2-MP - Spacecraft - Earth - Micrometeoroid - Ukraine DS-U2-MT - Spacecraft - Astronomy - Gamma Ray - Ukraine DS-U2-V - Spacecraft - Technology - Military - Ukraine DS-U3-IK - Spacecraft - Earth - Magnetosphere - Ukraine DS-U3-S - Spacecraft - Solar - - Ukraine DS-U4-B - Spacecraft - Biology - - Ukraine DS-U4-T - Spacecraft - Materials - - Ukraine DS-U5 - Spacecraft - Technology - - Ukraine DSV-2A - Orbital launch vehicle - USA - See Thor Agena D DSV-2A - Orbital launch vehicle - USA - See Thor Agena A DSV-2A - Orbital launch vehicle - USA - See Thor Agena B DSV-2L - Orbital launch vehicle - USA - See Thorad Agena D SLV-2H Du Jincheng - Du Jincheng - Chinese Pilot Yuhangyuan - Shuguang Group - 1970 DU-1 Rocket Belt - Spacecraft - Manned - Space Suits - Russia Dual Air Density Explorer - Spacecraft - Earth - Atmosphere - USA - See DAD Dual Keel Space Station - 1985 - Spacecraft - Manned - Space Station - USA Dual Lander Mission - Spacecraft - Manned - Mars Expedition - USA Dual Mode-Liquid Apogee Engine - Rocket Engine - USA - MON/Hydrazine propellants - 454.00 N Dubovik - A F Dubovik - Russian Military Officer - DuBridge - Lee A DuBridge - American Scientist - Duerr - Friedrich Duerr - German Rocket engineer - Duffy - Brian J Duffy - American Pilot Astronaut - NASA Group 11 - 1985 Duga-K - Spacecraft - Military - Target - Russia - See Taifun-3 Duke - Charles Moss (Charlie) Duke Jr - American Pilot Astronaut - NASA Group 5 - 1966 Dulles - Allen W Dulles - American Manager - Dun-1 - Intermediate range ballistic missile - China - See DF-2 Dun-2 - Intermediate range ballistic missile - China - See DF-3 Dunbar - Dr Bonnie Jeanne Dunbar - American Mission Specialist Astronaut - NASA Group 9 - 1980 Dunlap - Dr Alexander William Dunlap - American Payload Specialist Astronaut - Dunn - Louis G Dunn - American Scientist - Duque - Pedro Francisco Duque - Spanish Engineer Cosmonaut - ESA Group 1 - 1992, Commercial Group - 1993, NASA Group 16 - 1996 Durandal - Air-to-surface missile - France Durant - Frederick C Durant III - American Scientist - Durrance - Dr Samuel (Sam) Thornton Durrance - American Payload Specialist Astronaut - Dushkin 3M9 - Rocket Engine - Russia - Solid propellants - Dutch space history - - See Netherlands Dutton - James Patrick Dutton Jr - American Pilot Astronaut - NASA Group 19 - 2004 DUVE - Spacecraft - Earth - Atmosphere - Japan Dvina - Surface-to-air missile - Russia (Launch System Designation) - See S-75 DWS 39 - Air-to-surface missile - Sweden Dyess AFB - ICBM Base in USA. Dynamics Explorer - Spacecraft - Earth - Magnetosphere - USA Dynasoar - Spacecraft - Manned - Spaceplane - USA Dynasoar 10 - Manned spaceflight - program (Cancelled flight) Dynasoar 3 - Manned spaceflight - program (Cancelled flight) Dynasoar 4 - Manned spaceflight - program (Cancelled flight) Dynasoar 5 - Manned spaceflight - program (Cancelled flight) Dynasoar 6 - Manned spaceflight - program (Cancelled flight) Dynasoar 7 - Manned spaceflight - program (Cancelled flight) Dynasoar 8 - Manned spaceflight - program (Cancelled flight) Dynasoar 9 - Manned spaceflight - program (Cancelled flight) Dynasoar AS - Spacecraft - Manned - Spacecraft Module - Dynasoar Glider - Spacecraft - Manned - Spacecraft Module - Dzhambul - IRBM Base in Kazakhstan operated by Russia. Dzhanibekov - Vladimir Aleksandrovich Dzhanibekov - Russian Pilot Cosmonaut - Air Force Group 5 - 1970 Contact us with any corrections, additions, or comments. 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