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(Click for frequent words.) 72 orbiter 71 spacecraft 68 space shuttles 64 spacecrafts 63 shuttle orbiters 63 space shuttle 62 lunar missions 61 robotic rovers 61 NASA 61 astronauts 61 crewed spacecraft 60 shuttle orbiter 59 satellites 59 Orbiters 59 Hubble Space Telescope 59 Space Shuttle 59 shuttle 58 shuttle missions 58 manned spacecraft 58 orbiting spacecraft 58 space shuttle orbiters 58 Voyager spacecraft 57 unmanned probes 57 robotic explorers 57 shuttle fleet 57 International Space Station 57 NASA rovers 57 Shenzhou spacecraft 57 satellites orbiting 57 Nasa spacecraft 57 spaceflyers 57 orbiting 57 robotic spacecraft 57 NASAs 56 Hubble 56 Galileo satellites 56 orbiting observatory 56 orbit 56 orbiting telescope 56 lunar orbiter 56 Globalstar satellites 56 lander 56 Cassini Huygens 56 meteorological satellites 56 Nasa 56 shuttle Discovery 56 orbital rendezvous 56 Space Shuttles 55 WISE spacecraft 55 Jupiter Icy Moons 55 lunar landers 55 lunar orbiters 55 Stardust spacecraft 55 Orbiter 55 Mars orbiter 55 Mars landers 55 unmanned spacecraft 55 interplanetary missions 55 spokesman Michael Braukus 55 GOES satellites 55 manned spaceships 55 Mars Odyssey spacecraft 55 lunar surface 54 robotic probes 54 orbiting Hubble Space Telescope 54 Chandrayaan 54 Cassini Huygens spacecraft 54 deorbiting 54 manned lunar missions 54 rovers 54 Voyager probes 54 Mars Reconnaissance Orbiter MRO 54 Hubble telescope 54 orbiting satellites 54 THEMIS satellites 54 BepiColombo 54 rovers Spirit 54 manned missions 54 polar orbiting satellites 54 space shuttle Discovery 53 Mars rovers Spirit 53 Soyuz spacecraft 53 Hubble gyroscopes 53 Soyuz 53 lunar probes 53 Glonass M 53 manned spaceship 53 Martian orbit 53 Canadarms 53 satellites orbiting Earth 53 orbiting Mars 53 Mars orbiters 53 Curiosity rover 53 LRO spacecraft 53 orbiting observatories 53 Galileo spacecraft 53 Martian rover 53 Lunar Reconnaissance Orbiter LRO 53 shuttle Atlantis 53 spacecraft orbiting 53 outer planets 53 orbital 53 Enceladus flybys 53 Hubble servicing 53 shuttle Endeavor 52 Martian rovers 52 Cryosat 52 Landsat satellites 52 Apollo missions 52 shuttles 52 STEREO spacecraft 52 Space Shuttle Program 52 Global Surveyor 52 Orion spacecraft 52 Orbiter LRO 52 Soyuz rockets 52 geosynchronous satellites 52 EPOXI mission 52 Discovery undocks 52 unmanned lunar orbiter 52 RSRMs 52 micrometeoroids 52 Endeavour docked 52 Glonass navigation satellites 52 manned lunar 52 Glonass satellites 52 flybys 52 Mars rovers 52 Lunar Orbiter 52 infrared telescopes 52 Mars Reconnaissance Orbiter 52 Solar TErrestrial RElations Observatory 52 shuttle astronauts 52 CALIPSO 51 THEMIS spacecraft 51 probe Chang'e 51 starboard SARJ 51 unmanned lunar 51 remote sensing satellites 51 Mars rover 51 manned Soyuz 51 Chang'eI 51 Orbiter MRO 51 ISS crewmembers 51 polar orbiting 51 Soyuz TMA spacecraft 51 cryogenic engines 51 ROCSAT 2 51 interplanetary spacecraft 51 flyby spacecraft 51 NASA rovers Spirit 51 probe Huygens 51 IBEX spacecraft 51 Rosetta spacecraft 51 Soyuz capsules 51 INSAT 4CR 51 LADEE 51 reconnaissance satellites 51 human spaceflight 51 Shenzhou spaceships 51 lunar landing 51 lunar probe 51 SSMEs 50 JAXA 50 TDRS satellites 50 ExoMars mission 50 Shenzhou capsules 50 laser altimeter 50 Atlantis undocks 50 shielding tiles 50 manned lunar landing 50 Yinghuo 1 50 Earth orbiting satellites 50 Phobos Grunt 50 reusable spacecraft 50 shuttle Discovery STS 50 space shuttle Endeavour 50 Churyumov Gerasimenko 50 lunar orbit 50 orbiting complex 50 planetary missions 50 SMOS 50 enters lunar orbit 50 Saturn Cassini 50 Shenzhou capsule 50 station Skylab 50 Mars Global Surveyor 50 Opportunity rovers 50 moonwalkers 50 Shenzhou VI 50 Hubble Space telescope 50 Martian lander 50 spacefarers 50 GLONASS satellites 50 LRO 50 Kliper 50 GOCE satellite 50 orbiting ISS 50 tile fillers 50 APXS 50 rocket thrusters 50 Messenger spacecraft 50 Hubble Space Telescope HST 50 aboard Atlantis 50 Resourcesat 2 50 NASA Stardust spacecraft 50 space shuttle Atlantis 50 spaceplane 50 Mars moon Phobos 50 Viking orbiters 50 Zvezda module 50 Zhang Jianqi 50 lunar orbiter Chang'e 50 Saturnian moon Titan 49 Progress resupply 49 Mars Pathfinder lander 49 Kepler spacecraft 49 Solid Rocket Boosters 49 Lunar Reconnaissance Orbiter 49 orbital maneuvers 49 spaceship 49 GSAT 5P 49 Nikolai Budarin 49 stabilizing gyroscopes 49 heat shield 49 spaceships 49 ExoMars rover 49 Discovery astronauts 49 Shuttle Endeavour undocks 49 planetary Transits 49 O OREOS 49 HiRISE camera 49 Mars Surveyor 49 resistant tiles 49 shuttle Endeavour STS 49 SMOS mission 49 Space Agency 49 STSS Demo 49 microgravity experiments 49 orbital laboratory 49 robotic Canadarm 49 ISRO 49 KSLV 1 49 Mars Odyssey 49 Chang'e 49 Hayabusa probe 49 Polar Lander 49 lunar landings 49 robotic explorer 49 NASA MESSENGER spacecraft 49 Mars lander 49 ion propulsion 49 orbital debris 49 MTSAT 1R 49 Shuttle Endeavour 49 Orbital Express 49 manned Shenzhou 49 Ariane rocket 49 spy satellites 49 GLONASS M 49 Shuttle Discovery 49 NFIRE 49 spaceports 49 orbital insertion 49 Viking landers 49 geo stationary orbit 49 lunar probe Chang'e 49 MARSIS 49 twin rovers 49 polar orbit 49 engineer Garrett Reisman 49 Mars orbiting spacecraft 48 Shenzhou V 48 geostationary satellites 48 Lunar Prospector 48 NASA Stratospheric Observatory 48 Permanent Multipurpose Module 48 spacecraft orbited 48 Oleg Skripochka 48 shuttle Endeavour 48 ESA Huygens probe 48 lunar 48 Earth orbit 48 electric ion propulsion 48 Climate Experiment GRACE 48 Soyuz capsule 48 Shuttle Endeavor 48 NROL 48 TDRS K 48 Hubble Telescope 48 SpaceX Dragon capsule 48 Comet #P/Churyumov-Gerasimenko 48 Cassini 48 Pilot George Zamka 48 MetOp satellite 48 commander Leroy Chiao 48 deorbit 48 Shuttle Atlantis 48 Cargo Launch Vehicle 48 NASA Gamma ray 48 Martian surface 48 Foton M3 spacecraft 48 JWST 48 astronaut 48 Mars Orbiter 48 antisatellite weapon 48 defective gyroscope 48 Soyuz rocket 48 Chandrayan 48 WFPC2 48 robotic rover 48 NASA Mars Odyssey 48 remote sensing satellite Resourcesat 48 Nasa Mars Reconnaissance 48 GSLV 48 NuSTAR 48 suborbital spacecraft 48 Terrestrial Planet Finder 48 Minotaur rocket 48 LCROSS spacecraft 48 LRO LCROSS 48 geostationary orbits 48 circumlunar 48 sols 48 Mars 48 Kibo module 48 moonbase 48 dexterous robot 48 Cosmic Origins Spectrograph COS 48 STIS 48 reconnaissance orbiter 48 Express orbiter 48 unmanned spaceplane 48 TanDEM X 48 rover 48 Huygens mission 48 Russians Alexander Kaleri 48 lunar exploration 48 WMAP satellite 48 Jules Verne ATV 48 External Tank 48 Resourcesat 48 Mars Pathfinder 48 Ares IX rocket 48 NASA astronaut corps 48 Pirs Docking Compartment 48 Deep Impact probe 48 NPO Lavochkin 48 geo synchronous 48 MetOp 48 Vinasat 48 windshield wiper maneuver 48 orbiting laboratory 48 GOES O 48 Ranging spacecraft 48 commander Sergei Volkov 48 wheeled rovers 48 OSTM Jason 2 48 Mars Polar Lander 48 unmanned airships 48 Tropical Rainfall Measuring 48 orbiting astronauts 48 Mars Odyssey orbiter 48 QuikSCAT 48 New Horizons spacecraft 48 spacecraft Chandrayaan 1 47 stationary lander 47 FASTSAT 47 Mars Lander 47 GOES N 47 Mars Color Imager 47 nanosatellites 47 NASA twin rovers 47 Huygens Probe 47 GRACE satellites 47 KSC Visitor Complex 47 NASA Lunar Prospector 47 rover Spirit 47 GPS IIR M 47 Canadian Julie Payette 47 bipod ramp 47 radiosondes 47 GSLV rocket 47 DubaiSat 1 47 Shenzhou V spacecraft 47 Relations Observatory STEREO 47 undocks 47 MPLM 47 Titan flybys 47 Krikalev 47 HiRISE camera aboard 47 Discovery STS 47 venerable Soyuz rocket 47 astronaut Leroy Chiao 47 manned spaceflight 47 William Gerstenmaier 47 Spacecraft 47 Shuttle astronauts 47 fiery reentry 47 NASA STEREO 47 taikonauts 47 GEO satellites 47 dexterous robots 47 astronauts aboard 47 visit http:/saturn.jpl.nasa.gov 47 Shenzhou VI craft 47 spacecraft Cassini 47 Michibiki 47 astronauts Nicole Stott 47 Planck satellite 47 manned lunar mission 47 Glonass K 47 spaceflights 47 Shenzhou VII 47 Eyharts 47 orbited Earth 47 Foton M3 47 Sojourner rover 47 Mars Opportunity rover 47 ARCTUS 47 Endeavour 47 Thales Alenia 47 Hubble Servicing 47 manned orbital 47 Launch Abort System 47 autonomous rendezvous 47 Russian cosmonaut Yuri Gagarin 47 Gedmark 47 Endeavour astronauts 47 lunar rovers 47 landers 47 NASA Kepler telescope 47 Foton spacecraft 47 Climate Orbiter 47 Bill Gerstenmaier NASA 47 Mars CRISM 47 orbiter robotic arm 47 SpaceX Dragon 47 Shenzhou VI capsule 47 KODAK CCD Image Sensors 47 AEHF satellites 47 telescope 47 SIM PlanetQuest 47 BepiColombo mission 47 engineer Salizhan Sharipov 47 shuttle underside 47 robotic landers 47 comets asteroids 47 DART spacecraft 47 Wilkinson Microwave Anisotropy Probe 47 Aerojet propulsion 47 taikonaut 47 atmospheric reentry 47 flyby 47 Space Station 47 MESSENGER spacecraft 47 Cartosat 2A 47 onboard Chandrayaan 47 lunar orbiter Chandrayaan 47 faulty gyroscope 47 Mirelson 47 HTV2 47 liftoff 47 LCROSS 47 Isro 47 Reconnaissance Orbiter 47 observing satellites 47 Russian Soyuz 47 NASA Voyager spacecraft 47 Iridium satellites 47 engineer Nicole Stott 47 spacefaring nation 47 urine recycler 46 FORMOSAT 46 Cassini spacecraft 46 Cartosat 2B 46 EVAs 46 Apollo astronauts 46 Orbiting Carbon Observatory 46 Tim Kopra 46 ESA Envisat satellite 46 OGLE TR #b 46 spacewalking chores 46 geosynchronous 46 orbiter lander 46 asteroid Itokawa 46 NASA EPOXI mission 46 spacemen Timothy Kopra 46 Interior Laboratory GRAIL 46 spokesman Paul Foerman 46 mission Chandrayaan 46 Ares rocket 46 Dnepr rocket 46 retroreflector 46 hypersonic scramjet 46 shuttle undocked 46 Shenzhou orbital modules 46 orbiting outpost 46 entered lunar orbit 46 Manned missions 46 POES satellites 46 NASA Cassini 46 asteroid Eros 46 Globalstar constellation 46 COSMO SkyMed 46 HRSC 46 Orbital Debris 46 gap fillers 46 Space Telescope Imaging Spectrograph 46 ESA Mars 46 micrometeorites 46 orbiter Mars Odyssey 46 NASA Administrator 46 Galileo constellation 46 moon 46 PSLV rocket 46 winged spaceships 46 Philae lander 46 geostationary orbit 46 Astronauts inspect 46 preset orbit 46 MARSIS radar 46 rover Opportunity 46 Astronaut Sunita Williams 46 experimental payloads 46 lunar explorer 46 CubeSats 46 orbiting Hubble telescope 46 RADARSAT 2 46 Chandrayaan II 46 Russian cosmonaut Alexander Kaleri 46 Orbiting Carbon Observatory OCO 46 Red Planet 46 asteroids 46 Cosmonaut Yuri Gagarin 46 extravehicular activities 46 comet Churyumov Gerasimenko 46 Kurs automated 46 Vehicle CEV 46 pressurized module 46 nanosatellite 46 NIRSpec 46 DSCS satellites 46 AEHF satellite 46 traveled rocketship 46 uncrewed 46 duration spaceflights 46 SIRTF 46 lander rover 46 Webb Telescope 46 Xichang 46 Insat 4B 46 GOCE 46 MQ 9s 46 Hayabusa spacecraft 46 ESOC 46 ATV Jules Verne 46 NASA Lunar Reconnaissance 46 NASA Kepler 46 engineer Oleg Kononenko 46 Deep Impact comet 46 Spaceguard 46 thermal shrouds 46 heavier payloads 46 CARTOSAT 46 lunar rover 46 aboard Endeavour 46 required daylight liftoffs 46 Crewmate Tracy Caldwell 46 Shuttle undocks 46 MUOS satellite 46 Shuttle Discovery blasts 46 Space Shuttle Discovery 46 Comet Churyumov Gerasimenko 46 Ronald Dittemore 46 PSLV C# 46 geostationary 46 thrusters 46 engineer Greg Chamitoff 46 Alpha Magnetic Spectrometer 46 NPOESS 46 Beidou 46 Space Shuttle Atlantis 46 NASA LCROSS 46 interstellar particles 46 geosynchronous satellite 46 geo synchronous orbit 46 exoplanets planets 46 pressurized compartment 46 Kibo JPM JEM Pressurized 46 CryoSat satellite 46 SELENE probe 46 Solar Terrestrial Relations 46 X #As 46 shuttle thermal shielding 46 Sensing Satellite LCROSS 46 parachutes malfunctioned 46 Atlantis astronauts 46 Crew Exploration 46 ion thrusters 46 Greg Chamitoff 46 WGS satellites 46 geo stationary satellites 46 NASA THEMIS 46 shuttle payload bay 46 Lunar Reconnaissance Orbiter Camera 46 Dyna Soar 46 spacesuits 46 administrator Sean O'Keefe 46 Cloud Aerosol Lidar 46 IceBridge 46 hypersonic speeds 46 Fyodor Yurchikhin 46 Gravity Probe B 46 lunar lander 46 THEMIS Images 46 orbiter Atlantis 46 Dittemore 46 Satellite Launch Vehicle 46 AERONET 46 lunar outpost 46 spacewalks 46 ALMA antennas 46 geostationary communications 46 NASA Cassini spacecraft 46 Ares I. 46 Saturn outermost moon 46 Mars Spirit rover 46 Orion capsule 46 docking compartment 46 Alexander Samokutyayev 46 #/#-ton truss 46 robotic geologists 46 Servicing Mission 46 spaceward 46 STORRM 46 NASA satellites orbiting 46 spaceflight 46 Shenzhou VII spacecraft 46 Altair lunar lander 46 CryoSat 46 Envisat satellites 46 highly elliptical orbit 46 ICESat 45 Ariane launchers 45 cryogenic propellants 45 cryogenic engine 45 NAVSTAR Global Positioning System 45 Jupiter Icy Moons Orbiter 45 Baikonur Kazakhstan 45 GIOVE B 45 orbiting telescopes 45 Solar Dynamics Observatory 45 Yury Malenchenko 45 Observatory SDO 45 GSLV rockets 45 Stardust capsule 45 OrbView 3 45 Saturn moons 45 NASA Cosmic Background 45 Space shuttle Discovery 45 Earth Observation satellites 45 Japanese Kibo laboratory 45 booster rockets 45 comet flyby 45 Payload Operations Center 45 Comet Hartley 45 Sacred Vessel 45 shuttle Atlantis STS 45 Taikonauts 45 orbit insertion 45 GPS satellites 45 Mars Orbiter Camera 45 CAPE CANAVERAL Astronauts 45 George Zamka 45 Landsat satellite 45 X ray telescopes 45 stage Naro rocket 45 Lunokhod 45 Infrared Pathfinder Satellite 45 Japan Kibo laboratory 45 shuttle Challenger 45 Huygens descent 45 Mars rovers Opportunity 45 geosynchronous orbit 45 cosmonauts 45 scramjets 45 spacecraft Hayabusa 45 entire Milstar constellation 45 Envisat 45 Context Camera 45 spacemen 45 Spirit Mars rover 45 Synthetic Aperture Radar 45 JIMO 45 flyby Cassini 45 engineer Timothy Kopra 45 Michoud La. 45 Skylab 45 Russian Nikolai Budarin 45 Orion CEV 45 TerraSAR X 45 Horizons spacecraft 45 orbiter Cassini 45 engineer Sandra Magnus 45 Jovian moons 45 Daniel Tani 45 thruster 45 Soyuz craft 45 infrared spectrometers 45 unpiloted 45 OSIRIS Rex 45 Yuri Koptev 45 DIXI 45 INSAT 4B 45 ARRL AMSAT 45 John Callas rover 45 Soyuz spaceships 45 Giove B 45 orbited Jupiter 45 William Readdy NASA 45 satellite Omid Hope 45 ballistic trajectory 45 Huygens lander 45 Oceansat 2 45 manned spacecraft Shenzhou VI 45 insulating tiles 45 Space Shuttle Orbiter 45 Nicole Stott 45 Permanent Multipurpose Module PMM 45 Minotaur IV 45 asteroids Ceres 45 asteroid 45 Shenzhou VI spacecraft 45 hypersonic jet 45 Deep Impact eXtended Investigation 45 lunar regolith 45 NASA MESSENGER 45 Admiral Gehman 45 Helios 2B 45 Atlantis STS 45 Observatory STEREO 45 Shuttle docks 45 winged spacecraft 45 Foton M2 45 Martian arctic 45 NASA astronaut 45 Moon Mineralogy Mapper 45 Rosetta orbiter 45 Rosetta comet 45 Herschel telescope 45 Spacewalks 45 Manned Spacecraft Center 45 Ares IY 45 microshutters 45 astrophysical phenomena 45 Pilot Terry Virts 45 WISE telescope 45 Stardust NExT mission 45 Cygnus spacecraft 45 Nasa Mars Odyssey 45 Ed Weiler NASA 45 resupply missions 45 SSETI Express 45 Moderate Resolution Imaging 45 Space Fence 45 robotic arm Canadarm2 45 Ulysses spacecraft 45 Russian Salizhan Sharipov 45 Ron Garan 45 Wallops Island 45 coastal Naro 45 Rosetta comet chaser 45 Shuttle Discovery astronauts 45 Gerstenmaier 45 Earth orbit LEO 45 THEMIS probes 45 Léopold Eyharts 45 unpressurized cargo 45 Titan flyby 45 Kennedy Space 45 Shenzhou IV 45 Satellites GOES 45 ESA Planck 45 director Gene Kranz 45 COROT 45 BepiColombo joint 45 NASA Wallops 45 SPHERES 45 Terrain Mapping Camera 45 NASA Landsat 45 aboard Soyuz spacecraft 45 Deep Impact spacecraft 45 seater Soyuz spacecraft 45 orbit spares 45 Express AM# 45 Viking Lander 45 Malenchenko 45 JCSAT 9 45 lunar orbits 45 ferrying astronauts 45 Pirs docking compartment 45 mission Chandrayan 45 radar altimeter 45 NextSat 45 resident Gregory Chamitoff 44 Lopota 44 exoplanetary 44 Kepler observatory 44 NASA rover Spirit 44 Reflection Radiometer 44 SBSS Block 44 Discovery liftoff 44 thermal tiles 44 twin rover Opportunity 44 Psychological profiling 44 moon Charon 44 specialists Scott Parazynski 44 Christopher Scolese 44 astronomical observatories 44 Proba 2 44 Vitaly Davydov deputy 44 Pirs module 44 Saturn moon 44 Russian Mikhail Tyurin 44 spokesman Igor Panarin 44 Comet Hartley 2 44 Col. Pamela Melroy 44 NanoSail D 44 heatshield 44 SAR Lupe 44 Apollo Skylab 44 LROC 44 TerraSAR X satellite 44 Space Shuttle Endeavour 44 ESA ASI 44 GPS IIF satellites 44 Antenna LISA 44 Infrared Astronomy 44 shuttle undocks 44 Ares IX 44 GPS IIF 44 Milstar satellites 44 National Polar Orbiting 44 SMOS Soil Moisture 44 ESA ERS 44 maneuvering thrusters 44 GOES R 44 thruster firings 44 LISA Pathfinder 44 moons Phobos 44 Perminov 44 astronaut Yang Liwei 44 Jiuquan Satellite Launch 44 OSIRIS REx 44 celestial observations 44 Ariane launcher 44 Space ENvironment GEochemistry 44 astronauts Jing Haipeng 44 exhaust plume 44 magnetic spectrometer 44 Shuttle Radar Topography 44 Tranquility Node 44 ISS robotic arm 44 GPS 2R 44 Cosmic Microwave Background 44 VIRTIS 44 Centre VSSC 44 GLONASS constellation 44 LORRI 44 Uninhabited Aerial Vehicle 44 Dominic Gorie 44 agency Roskosmos 44 Herschel Planck 44 PSLV 44 gamma ray observatory 44 Shuttle Atlantis docks 44 Yury Lonchakov 44 ISS 44 ship thermal shielding 44 Rex Geveden 44 executive Seymour Himmel 44 Sun Laiyan 44 NASA Cassini orbiter 44 Macroscale Interactions during 44 Orion spaceship 44 reusable manned spacecraft 44 icy moons 44 twin Voyager spacecraft 44 manned spaceflights 44 ESA GOCE 44 Endeavour STS 44 cosmonaut Yuri Gagarin 44 solar arrays 44 robotic geologist 44 Infrared Astronomy SOFIA 44 CBERS 2B 44 http:/www.nasa.gov/cassini 44 Sinosat 44 radioisotope thermoelectric generators 44 spokesperson Allard Beutel 44 observatories 44 GSLV F# 44 CloudSat 44 Solar Orbiter 44 CHIPSat 44 GSLV D3 rocket 44 NASA Space Shuttle 44 William Readdy 44 Intelsat satellites 44 Reinforced Carbon Carbon 44 humanoid robot bound 44 Bowersox Pettit 44 Phoenix Mars lander 44 shuttle Endeavour astronauts 44 ESA Huygens 44 AEHF 44 Cosmic Origins Spectrograph 44 comet 44 Air Force Evolved Expendable 44 QuikSCAT satellite 44 deorbited 44 Mars# 44 Soviet cosmonauts 44 Space Telescope GLAST 44 Astronauts 44 neutrino detectors 44 STSS Demonstration 44 orbits 44 asteroid Steins 44 Europa Orbiter 44 rover Curiosity 44 Compton Gamma Ray 44 micrometeorite 44 manager Mike Suffredini 44 ISS Expedition 44 Harmony Node 44 ST5 44 Shackleton crater 44 gyroscopes 44 NASA WMAP 44 PSLV C7 44 martian surface 44 SpaceshipTwo 44 superhot gases 44 Japanese astronaut Koichi 44 Pavel Vinogradov 44 Mission Directorates 44 MARSIS instrument 44 Mercury flyby 44 Mikhail Tyurin 44 SpaceLoft XL rocket 44 Charlie Hobaugh 44 Imaging Spectroradiometer MODIS instrument 44 seven windowed cupola 44 UAVSAR 44 radiosonde 44 robot rovers 44 astronauts Scott Parazynski 44 unmanned airship 44 tumbleweed rover 44 Yurchikhin 44 ISS crewmember 44 Spaceguard Survey 44 asteroid Vesta 44 Atlantis Undocks From 44 lunar expeditions 44 Opportunity rover 44 Beidou satellite 44 Gagarin flight 44 Viking Orbiter 44 reentry capsule 44 ammonia coolant tank 44 Naoko Yamazaki 44 NEOWISE 44 ferry SpaceShipTwo 44 robotic lander 44 OCO satellite 44 Cosmodrome 44 Salizhan Sharipov 44 Lunar Module Pilot 44 twin STEREO spacecraft 44 THEMIS 44 substorms 44 lunar module Eagle 44 Mars Rover 44 WFC3 44 shuttle aft compartment 44 Mir Space Station 44 scramjet engines 44 airborne observatory 44 aboard Skylab 44 Mike Suffredini 44 Lunar Exploration 44 Atlas 2AS 44 spacewalks astronauts 44 Tempel 1 44 NASA Solar Terrestrial 44 cosmonaut Fyodor Yurchikhin