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(Click for frequent words.) 71 manned spacecraft 71 human spaceflight 70 spaceflight 63 manned spaceship 62 manned missions 60 manned lunar landing 60 lunar exploration 59 NASA 58 unmanned lunar 57 Shenzhou VII 57 manned lunar 57 ferrying astronauts 56 manned spaceflights 56 Shenzhou VI 56 taikonaut 56 spacecraft 55 astronauts 55 space shuttle 55 lunar orbiter 55 International Space Station 55 Yang Liwei 55 Shenzhou spacecraft 55 lunar probe 55 Shenzhou V spacecraft 54 Hubble servicing 54 Shenzhou orbital modules 54 Earth orbit 54 manned lunar missions 54 reusable spacecraft 54 Sun Laiyan 54 Nasa 54 lunar landing 54 Kliper 53 Ares rocket 53 interplanetary missions 53 SpaceShipOne 53 Zhang Jianqi 53 NASA Administrator 53 Gagarin flight 53 Shenzhou V 53 Yury Gagarin 52 Huang Chunping 52 lunar lander 52 Shenzhou VII spacecraft 52 circumlunar 52 suborbital 52 Crew Exploration 52 manned orbital 52 crewed spacecraft 52 orbital rendezvous 52 Mercury Gemini 52 suborbital flight 52 cosmonaut 52 Jupiter Icy Moons Orbiter 52 spaceflights 52 Shenzhou 52 Sacred Vessel 52 manned spaceships 51 orbit 51 spacefaring nation 51 Centennial Challenges 51 manned suborbital 51 Anatoly Perminov 51 Perminov 51 aboard Skylab 51 NASAs 51 Xie Mingbao 51 SELENE probe 51 lunar probe Chang'e 51 Russian cosmonaut Yuri Gagarin 51 Taikonauts 51 lunar missions 51 Orion spacecraft 51 Jupiter Icy Moons 51 Human Spaceflight 51 Qi Faren 51 planetary exploration 51 manager Mike Suffredini 51 orbiting 51 dexterous robot 51 astronaut 50 astronaut Yang Liwei 50 spacewoman 50 Orbital Express 50 Roskosmos 50 Mars# 50 Space Shuttle 50 space module Tiangong 50 lunar landings 50 NewSpace 50 SpaceX 50 sub orbital spaceflight 50 agency Roscosmos 50 suborbital spaceflight 50 Chang'eI 50 spaceship 50 MirCorp 49 sub orbital 49 spacewalk 49 shuttle missions 49 Vostok spacecraft 49 Orion capsule 49 William Readdy NASA 49 mission Chandrayan 49 Shenzhou VII mission 49 Zhai Zhigang 49 manned spacecraft Shenzhou VI 49 Planetary Society 49 commander Zhai Zhigang 49 unpiloted 49 Christopher Scolese 49 BepiColombo joint 49 spokesman Michael Braukus 49 spaceplane 49 robotic spacecraft 49 SpaceX Falcon 9 49 spaceflyers 49 ion propulsion 49 agency Roskosmos 49 taikonaut Yang Liwei 49 orbiting laboratory 49 Space Agency 49 unmanned spacecraft 49 Ouyang Ziyuan 49 unmanned probes 49 Jeff Greason 49 Chang'e 49 Soyuz spacecraft 49 Soyuz craft 49 chief Anatoly Perminov 48 manned lunar mission 48 suborbital spacecraft 48 X Prize 48 spacefaring nations 48 Cosmonaut Yuri Gagarin 48 Wang Zhaoyao 48 Shenzhou spaceships 48 Space Exploration 48 Shenzhou IV 48 JAXA 48 Luan Enjie 48 orbiter 48 Atlantis STS 48 Taikonaut 48 orbital insertion 48 Shenzhou capsule 48 Jing Haipeng 48 orbital spaceflight 48 Soyuz rocket 48 lunar explorer 48 Reusable Launch Vehicle 48 mission Chandrayaan 48 manned Shenzhou 48 Cernan 48 Mike Melvill 48 Soviet cosmonaut Yuri Gagarin 48 cosmonaut training 48 William Readdy 48 Shuttle Discovery 48 Space Station 48 X #B Orbital 48 planetary explorations 48 Richard Branson Virgin Galactic 47 space shuttles 47 Boris Chertok 47 spacecrafts 47 COSTIND 47 NASA Centennial Challenges 47 Vehicle CEV 47 Chiaki Mukai 47 astronauts Jing Haipeng 47 spacesuit 47 Chandrayaan II 47 Yuri Gagarin 47 reusable manned spacecraft 47 satellite Kwangmyongsong 2 47 suborbital space 47 cosmonautics 47 Simonetta Di Pippo ESA 47 Rutan SpaceShipOne 47 orbiters 47 Ye Peijian 47 manned spacecraft Shenzhou 47 Apollo Soyuz 47 cosmonaut Yuri Gagarin 47 Spaceflight 47 Scolese 47 Russian Soyuz spacecraft 47 taikonauts 47 Colonel Yang Liwei 47 Soyuz TMA spacecraft 47 Phobos Grunt 47 Soyuz 47 cosmonaut Fyodor Yurchikhin 47 Nikolai Budarin 47 Lori Garver 47 probe Chang'e 47 Shenzhou VI capsule 47 shuttle Endeavor 47 Space Administration CNSA 47 lunar rover 47 Ares rockets 47 Gu Yidong 47 Burt Rutan SpaceShipOne 47 orbiting complex 47 Cassini Huygens 47 Plane OSP 47 commander Dmitry Kondratyev 47 outer space 47 planetary missions 47 Fei Junlong 46 weaponizing space 46 David Southwood ESA 46 KSLV 1 46 spaceport 46 Peter Diamandis founder 46 Valentina Tereshkova 46 lunar landers 46 spacefaring civilization 46 WhiteKnightTwo WK2 46 SpaceX Dragon 46 Ken Bowersox 46 Japanese astronaut Takao 46 Daniel Sacotte 46 Gemini Apollo 46 moon landings 46 Sergei Korolev 46 ROCSAT 2 46 commercial spaceline 46 Russian Soyuz 46 X #B 46 Orbital Space 46 Chandrayaan 46 Shana Dale 46 shuttle fleet 46 shuttle Atlantis 46 Commander Charlie Hobaugh 46 William Gerstenmaier 46 suborbital flights 46 Roger Launius 46 SpaceShip One 46 SpaceshipTwo 46 Manned Spaceflight 46 Bigelow Aerospace 46 BepiColombo 46 Cosmodrome 46 Jiuquan Satellite Launch 46 Dordain 46 Lt. Col. Yang Liwei 46 spaceflight participant 46 Sergei Korolyov 46 www.xprize.org 46 Atlantis Undocks From 46 wife commissioned Celestis 46 administrator Sean O'Keefe 45 Col. Yang Liwei 45 Soyuz rockets 45 NASA Authorization 45 Konstantin Feoktistov 45 Lunar Exploration 45 Kirk Shireman 45 astronaut Tim Kopra 45 spokesman Igor Panarin 45 SpaceShipOne rocket 45 Skylab 45 Ariane rocket 45 BepiColombo mission 45 Peter Diamandis 45 Nie Haisheng 45 Owen Garriott 45 astronaut Jerry Linenger 45 Shenzhou manned 45 Junichiro Kawaguchi 45 SpaceX Falcon 45 Sevastyanov 45 Li Jinai 45 windshield wiper maneuver 45 indigenous cryogenic engine 45 Exploration Vehicle 45 manned Soyuz 45 unsustainable trajectory 45 Mars rover 45 Ngo Anh 45 Apollo missions 45 Luo Ge 45 robotic rover 45 Jiuquan 45 Astronaut Scholarship 45 astronauts Zhai Zhigang 45 Terrestrial Planet Finder 45 Zhai Zhigang Liu Boming 45 Virgin Galactic SpaceShipTwo 45 David Leckrone 45 Virgin Galactic unveils 45 Shuttle Endeavour blasts 45 astronaut Owen Garriott 45 Zhang Qingwei 45 Russian cosmonaut Yuri Usachev 45 Readdy 45 Yury Malenchenko 45 Admiral Gehman 45 engineer Timothy Kopra 45 Ed Weiler 45 Soyuz capsule 45 spaceward 45 Discovery STS 45 Dragon capsule 45 preset orbit 45 Max Faget 45 Jim Paulsen SSME 45 satellite Sputnik 45 SpaceX Dragon capsule 45 Hu Shixiang deputy 45 Nikolai Moiseyev 45 Cape Canaveral Nasa 45 commander Sergei Volkov 45 Isro 45 Yuri Gagarin blasted 45 astronaut Peggy Whitson 45 Norm Thagard 45 Ed Weiler NASA 45 unmanned lunar orbiter 45 NASA astronaut corps 45 Pete Siebold 45 Minotaur rocket 45 Garret Reisman 45 Sputnik satellite 45 Discovery liftoff 45 orbited Earth 45 Qian Xuesen 45 Baikonur Kazakhstan 45 Space Shuttle Program 45 Jaxa 45 Richard Gilbrech 45 indigenous cryogenic 45 Shenzhou VI craft 45 Mike Suffredini 45 Systems Mission Directorate 45 Suborbital 45 SELENE 45 spacefaring 45 VSS Enterprise 45 Constellation Ares 45 Chandrayan 45 Astronaut Sunita Williams 44 spacecraft SpaceShipTwo 44 Yinghuo 1 44 Spacewalks 44 ISS 44 Roscosmos 44 Burt Rutan 44 Rosaviakosmos 44 Hubble Servicing 44 Mirelson 44 MetOp satellite 44 orbital debris 44 aboard Soyuz rocket 44 Konstantin Tsiolkovsky 44 Norm Augustine 44 Jiaolong 44 Wernher von Braun 44 Simonetta Di Pippo 44 spokesman Robert Mirelson 44 Divine Vessel 44 shuttle Discovery 44 Shuttle undocks 44 Spacewalk 44 Manned Spacecraft 44 Shuttle Endeavor 44 NFIRE 44 pioneered manned spaceflight 44 Elon Musk SpaceX 44 historian Roger Launius 44 NASA Space Shuttle 44 OSIRIS REx 44 Yang Liwei piloted 44 Ares IX rocket 44 ISRO 44 ExoMars mission 44 Huygens mission 44 winged spacecraft 44 Spaceward Foundation 44 Sun Jiadong 44 NPOESS 44 Satish Dhawan 44 hypersonic flight 44 Discovery undocks 44 Gagarin 44 Mike Suffredini NASA 44 Gus Grissom 44 Lopota 44 astrobiology 44 Soviet cosmonaut 44 Soyuz spaceship 44 skipper Peggy Whitson 44 Bill Gerstenmaier NASA 44 crewed missions 44 Astronauts inspect 44 GPS IIR M 44 commander Fyodor Yurchikhin 44 interplanetary travel 44 Sirangelo 44 Takao Doi 44 shuttle orbiter 44 Shuttle Discovery undocks 44 Angkasawan 44 Launch Vehicle 44 astronaut Zhai Zhigang 44 Yuri Koptev 44 Korolyov 44 spacewalks 44 laboratory Kibo 44 hypersonic scramjet 44 director Chuck Dovale 44 Shenzhou VI spacecraft 44 defective gyroscope 44 Mojave Spaceport 44 DART spacecraft 43 Daniel Sacotte ESA 43 American Astronautical Society 43 spaceports 43 Manned missions 43 China Manned Space 43 rocketships 43 Human Spaceflight Microgravity 43 JIUQUAN China 43 commander Charlie Hobaugh 43 William Gerstenmaier NASA 43 interplanetary probes 43 CHIPSat 43 Laurie Leshin 43 extravehicular activities 43 Glonass K 43 Decadal Survey 43 Wallops Island 43 Visit SPACE.com 43 OSIRIS Rex 43 Beidou 43 Rocketplane 43 cosmonauts 43 astronaut Pam Melroy 43 Astro E2 43 Jean Jacques Dordain 43 Soviet cosmonaut Yury Gagarin 43 Multi Purpose Crew 43 comet chaser 43 Jiuquan launch 43 Shuttle Discovery blasts 43 Ellison Onizuka 43 John Gedmark 43 intergalactic spaceship 43 lunar orbiter Chang'e 43 Blackswift 43 urine recycler 43 NuSTAR 43 SpaceShipTwo SS2 43 colonize Mars 43 Manned Space Flight 43 manager Gerhard Schwehm 43 CAIB recommendations 43 Virgin Galactic 43 ESA GOCE 43 tourist Richard Garriott 43 Mercury Redstone 43 NM spaceport 43 Spaceguard Survey 43 Helios 2B 43 Ansari X 43 Giove B 43 Rutan 43 Shuttle Atlantis 43 G. Madhavan Nair 43 director Gene Kranz 43 Xichang 43 rocketship 43 Endeavour docked 43 shuttle orbiters 43 spacewalking 43 Nikolai Shaposhnikov 43 Charles Elachi 43 Manned Space 43 Pilot George Zamka 43 spacewalking tourist 43 Scaled Composites 43 orbiting observatory 43 coastal Naro 43 spaceflyer 43 Shuttle Docks 43 shuttle undocks 43 Shenzhou V capsule 43 Vinasat 43 Cosmonautics Day 43 Oleg Ivanovsky 43 JDEM 43 spacemen Timothy Kopra 43 dubbed taikonauts 43 commercial spaceflights 43 shuttle Discovery STS 43 Dyna Soar 43 heaviest payloads 43 spaceships 43 STSS Demo 43 heliophysics 43 Russian cosmonaut Alexander Kaleri 43 Lunar X PRIZE 43 Astrobotic 43 Rain overcast sky 43 DubaiSat 1 43 Atlantis undocks 43 Ares IY 43 Hubble telescope 43 antisatellite weapon 43 orbital outpost 43 spacefarers 43 Shuttle Endeavour undocks 42 GSLV D3 42 Russian cosmonaut 42 tourist Charles Simonyi 42 undocks 42 extravehicular activity 42 Gregg Maryniak 42 orbiting telescope 42 LRO LCROSS 42 rocketry 42 angkasawan 42 Launch Abort System 42 cryogenic engines 42 Carl Marchetto 42 JWST 42 ARRL AMSAT 42 Heidemarie M. 42 Astronaut Zhai Zhigang 42 spacesuits 42 spokesman Kiyotaka Yashiro 42 Wang Yongzhi 42 suborbital rocket 42 Galileo satellite 42 Starchaser 42 lunar 42 CAPE CANAVERAL FLORIDA 42 RKK Energiya 42 Soviet cosmonaut Valentina Tereshkova 42 Simonetta Di Pipo 42 orbiting observatories 42 Energiya 42 antisatellite 42 ramjet scramjet 42 Commander Rick Sturckow 42 aeronautics 42 Commander Pam Melroy 42 rocket scientist Wernher 42 Madhavan Nair 42 Shuttle Challenger 42 Orion spaceship 42 Yuri Malenchenko 42 aboard Soyuz spacecraft 42 duration spaceflights 42 Beidou satellite 42 Cosmonaut Valery Tokarev 42 spaceliner 42 Wang Zhaoyao deputy 42 Orion Crew 42 NASA astronaut 42 orbiting outpost 42 Boris Morukov 42 Alan Thirkettle 42 Lunar Module Pilot 42 Ansari X PRIZE 42 suborbital spaceships 42 planetary Transits 42 moonbase 42 astronaut Andrew Feustel 42 Peter Diamandis chairman 42 Oenaro Island 42 manager Kirk Shireman 42 Educator Astronaut 42 Soyuz rocket carrying 42 Lunar Reconnaissance Orbiter LRO 42 Space Shuttle Endeavour 42 Lunar Probe 42 ShareSpace Foundation 42 Wally Schirra 42 Transformational Satellite Communications 42 STP S# 42 Shuttle Endeavour 42 Gerstenmaier 42 Keiji Tachikawa 42 SpaceLoft XL 42 FutureGen 42 shuttle Endeavour STS 42 Nasa astronaut 42 Spaceguard 42 cosmonaut corps 42 rover Curiosity 42 Space Shuttles 42 SuitSat 42 Pluto Kuiper Belt 42 Andrey Borisenko 42 astronautical 42 Yuri Shargin 42 shuttle Atlantis STS 42 decadal survey 42 supersonic airliner 42 Spaceport 42 spacewalkers Scott Parazynski 42 blastoff 42 Mark Uhran NASA 42 NPO Lavochkin 42 hypersonic 42 Curiosity rover 42 uncrewed 42 stabilizing gyroscopes 42 astronaut Rex Walheim 42 Mamoru Mohri 42 Keith Cowing 42 administrator Lori Garver 42 celestial observations 42 MErcury Surface Space ENvironment 42 interplanetary spacecraft 42 PSLV rocket 42 Russian Soyuz rocket 42 Lieutenant Colonel Yang Liwei 42 deorbiting 42 module Kibo 42 teacher Christa McAuliffe 42 Stardust capsule 42 robotic probes 42 Manned spaceflight 42 Feitian 42 commander Leroy Chiao 42 Launch Scrubbed 42 Malenchenko 42 enters lunar orbit 42 Space Flight 42 Vitaly Davydov deputy 42 X #A 42 Guy Laliberte 42 NAVSTAR Global Positioning System 42 Commercial Spaceflight Federation 42 Gene Cernan 42 Japan Aerospace Exploration 42 KazSat 42 scramjet 42 robotic rovers 42 engineer Oleg Kononenko 42 Japanese Aerospace Exploration 42 NASA MESSENGER 42 rocketeer 42 Commander Eileen 42 Rick Grammier 42 Earth orbit LEO 42 Rex Geveden 42 Based Infrared 42 orbital module 42 Crewmate Tracy Caldwell 41 George Zamka 41 venerable Soyuz rocket 41 lunar orbit 41 Norman Thagard 41 predecessor Sean O'Keefe 41 stage Naro rocket 41 SpaceShipOne designer 41 VASIMR 41 orbital laboratory 41 Paul Spudis 41 humanoid robot R2 41 6 #/#-hour jaunt 41 X PRIZE 41 Atlantis astronauts 41 commander Gennady Padalka 41 scramjets 41 scramjet engines 41 Ron Dittemore 41 BAIKONUR Kazakhstan 41 Richard Garriott 41 moon 41 spacewalker 41 Shuttle astronauts 41 Space Shuttle Endeavor 41 spacecraft Cassini 41 Russian Soyuz capsules 41 Centre VSSC 41 parachutes malfunctioned 41 Virgin Galactic spaceline 41 Koptev 41 Tim Kopra 41 Laser Interferometer Space 41 suborbital spaceship 41 Cargo Launch Vehicle 41 Klinkrad 41 Progress resupply 41 BYD Daimler 41 Kepler Mission 41 Mars Pathfinder 41 Lunar Orbiter 41 Wu Yansheng 41 Svetlana Savitskaya 41 Maxim Surayev 41 Kazakhstan Baikonur 41 Mars rovers 41 Dean Pesnell 41 Russian Alexander Kaleri 41 PSLV C# 41 Ron Grabe Orbital 41 Garriott 41 Manned Flight 41 Moonbase Alpha 41 malfunctioning rotary joint 41 NASA Astronaut 41 Cygnus spacecraft 41 Kirk Shireman NASA 41 experimental payloads 41 Cosmic Vision 41 probe Huygens 41 Shuttle Atlantis docks 41 Hubble Space telescope 41 liftoff 41 SpaceShipTwo 41 Shuttle Endeavour docks 41 Lunar Lander 41 Tsien Hsue shen 41 shuttle 41 Tiangong 41 cryogenic engine 41 Budarin 41 station Sturckow radioed 41 XCOR Aerospace 41 Lunar Rover 41 Cosmology concludes 41 Shenzhou VIII 41 astronauts Fei Junlong 41 Stratospheric Observatory 41 ARCTUS 41 JIMO 41 Alexei Krasnov 41 Talgat Musabayev 41 don spacesuits 41 weather satellite TIROS 41 resident Gregory Chamitoff 41 Wernher Von Braun 41 Shuttle astronaut 41 Jules Verne ATV 41 Russians Alexander Kaleri 41 Guy Wormser 41 catapulted Melroy 41 Tokarev 41 FreedomCAR 41 Japanese Kibo lab 41 GeneSat 1 41 Wideband Global 41 orbiter Atlantis 41 RKK Energia 41 National Ignition Facility 41 Shuttle Discovery docks 41 Endeavour astronauts embarked 41 Julie Payette 41 Popovkin 41 Shuichiro Yamanouchi 41 GSLV 41 astronaut Eugene Cernan 41 Pang Zhihao researcher 41 ExoMars 41 Space Launch Vehicle 41 International Thermonuclear Experimental Reactor 41 Colin Pillinger Beagle 41 commander Dominic Gorie 41 Charles Bolden 41 Cathy Peddie LRO 41 Mexico Spaceport 41 astronautics 41 Rocketplane Ltd. 41 UP Aerospace 41 Mir Space Station 41 Antenna LISA 41 Minotaur IV rocket 41 Japanese astronaut Koichi 41 EELV 41 astronaut Kent Rominger 41 Proba 2 41 buckypaper virtually 41 SCISAT 41 Soyuz capsules 41 Space.com 41 manned 41 ESA Rosetta 41 Ron Garan 41 Solar TErrestrial RElations Observatory 41 antisatellite missile 41 Hayabusa spacecraft 41 Japan Kibo laboratory 41 geosynchronous satellite launch 41 KSLV 41 LCROSS mission 41 Rob Navias 41 Mars Atmosphere 41 Energy Innovation Hubs 41 Bob Ess 41 astronaut Soichi Noguchi 41 Flyaway foam remained 41 Alexander Samokutyayev 41 Manned Space Mission 41 suborbital rockets 41 Craig Steidle 41 Soyuz capsule carrying 41 Mark N. Sirangelo 41 spacecraft Shenzhou 41 astronaut Rusty Schweickart 41 shuttle astronauts 41 Alexei Leonov 41 Judy Resnik 41 NEOSSat 41 shuttle Discovery undocked 41 Holly Ridings 41 John Brunschwyler 41 lunar outpost 41 Canadarms 41 Automated Transfer Vehicle 41 Flight Readiness 41 W. Haise 41 Russian Valeri Polyakov 40 SpaceShip Two 40 tourist Guy Laliberte 40 orbit insertion 40 Orion CEV 40 spacewalk paves 40 Beidou navigation 40 EVA extravehicular activity 40 nasa.gov 40 father Owen Garriott 40 WhiteKnight Two 40 robotic explorers 40 Crew Launch Vehicle 40 PSLV C6 40 Bill Readdy NASA 40 unmanned rover 40 propulsion 40 Léopold Eyharts 40 Hubble 40 Space Shuttle Discovery 40 astronaut Gene Cernan 40 Chris Scolese 40 Horizons spacecraft 40 Innovative Partnerships Program 40 engineer Garrett Reisman 40 Laboratory MSL 40 recalled Seymour Himmel 40 Fincke radioed 40 origami masters 40 extrasolar planet observations 40 specialists Scott Parazynski 40 So yeon Yi 40 Piers Sellers 40 Cosmonaut 40 space shuttle Discovery 40 Kirk Shireman deputy 40 Vladimir Komarov 40 X #A scramjet 40 Daniel Tani 40 De Winne 40 Endeavour astronauts 40 malfunctioning firefighting 40 Rocketplane XP spacecraft 40 GLAST telescope 40 System F6 40 aboard Atlantis 40 Yuri Semyonov 40 CANAVERAL Fla. 40 Gene Kranz 40 Lunar Prospector 40 Minotaur IV 40 orbital 40 Allard Beutel NASA 40 lunar probes 40 A. Cernan 40 Robonaut 2 40 Biomedical Problems 40 Spaceport America 40 Hubble Telescope 40 André Borschberg 40 Stuhlinger 40 Dnepr rocket 40 DragonLab 40 Kibo module 40 Baikonur Cosmodrome 40 Sergei Volkov 40 Northrop Grumman Lunar Lander 40 Liu Boming 40 Joel Sitz 40 shuttle Challenger 40 Regional Spaceport 40 scientist Rafat Ansari 40 orbiting lab 40 Christa McAuliffe backup 40 intercontinental ballistic missile 40 astronaut Shannon Lucid 40 extravehicular 40 Astronauts hitched 40 Martian rover 40 astronauts Douglas Wheelock 40 SSMEs 40 moonship 40 Shuttle Atlantis blasts 40 Administrator Lori Garver 40 SELENE lunar satellite 40 Marc Rayman 40 Lavochkin 40 Asteroid Probe 40 JIMO mission 40 Air Force Evolved Expendable 40 Commander Sergei Krikalev 40 PSLV C9 40 VK Saraswat 40 shuttle thermal tiles 40 Spaceship 40 NASA Robonaut 40 winged spaceships 40 Valery Polyakov 40 Competes Act 40 Plesetsk 40 Lunar Lander Challenge 40 NASA Kepler 40 NROL 40 astronaut Leroy Chiao 40 astronaut Satoshi Furukawa 40 engineer Valery Tokarev 40 NASA Astrobiology 40 SPACE.com 40 Ares IX 40 Peter H. Diamandis 40 Titan IVB 40 Bjarni Tryggvason 40 Grammier 40 outer planets 40 aboard Endeavour 40 deorbited 40 Launch Vehicle Technology 40 Weightless Wonder 40 atmospheric reentry 40 Variable Specific 40 Dream Chaser 40 spokesman Grey Hautaluoma 40 ICBM 40 manager Alan Thirkettle 40 communications satellite Kwangmyongsong 40 orbiter lander 40 NASA Educator Astronaut 40 Apollo Skylab 40 ExoMars rover 40 ISS crewmember 40 Eileen Hawley 40 reusable suborbital 40 orbited 40 Atlantis undocked 40 Tang Xianming director 40 sputnik 40 LightSail 1 40 Insat 4B 40 director Charles Elachi 40 Russian cosmonaut Sergei Volkov 40 NSPO 40 Alexander Samokutyaev 40 Barbree 40 Space Elevator 40 Space Station Status 40 Kavandi 40 Michibiki 40 Aerospace DAILY 40 Sergei Gorbunov spokesman 40 Commander Dominic Gorie 40 Vikram Sarabhai 40 Ernst Stuhlinger 40 suborbital spaceflights 40 Jules Verne Automated Transfer 40 agency Rosaviakosmos 40 Douglas Hudgins Kepler 40 Woodrow Whitlow 40 Nasa spacecraft 40 Robotic Exploration 40 GSLV D3 rocket 40 prototype humanoid robot 40 Soyuz TMA #M 40 Interorbital Systems 40 Sputnik 40 Astronaut 40 autonomous rendezvous 40 scientist Ouyang Ziyuan 40 Gedmark 40 lunar module pilot 40 STSS Demonstration 40 Airborne Laser 40 Charles Camarda 40 Goheung 40 unmanned 40 Derek Hassmann 40 Manned Spacecraft Center 40 Robert Hoot Gibson 40 Leroy Chiao 40 WISE spacecraft 40 GSLV F#