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(Click for frequent words.) 64 manned missions 63 interplanetary missions 62 orbiters 62 crewed spacecraft 61 manned lunar 60 spacecraft 59 lunar exploration 59 planetary missions 59 orbiting observatories 59 spacecrafts 59 manned spacecraft 58 unmanned probes 58 Shenzhou spacecraft 58 lunar orbiters 57 experimental payloads 57 orbital rendezvous 57 lunar landers 57 lunar expeditions 57 robotic rovers 57 Cassini Huygens 57 reusable spacecraft 56 Mars landers 56 suborbital spacecraft 56 spokesman Michael Braukus 56 BepiColombo 56 Crew Exploration 56 human spaceflight 56 NASAs 56 NASA 56 Lunar Reconnaissance Orbiter LRO 55 lunar probes 55 lunar rovers 55 robotic spacecraft 55 unmanned lunar orbiter 55 Jupiter Icy Moons 55 robotic probes 54 orbiter 54 Apollo missions 54 spaceflights 54 unmanned spacecraft 54 NASA rovers 54 spaceflyers 54 Kepler spacecraft 54 dexterous robot 54 robotic landers 54 MetOp satellite 54 remote sensing satellites 53 Chandrayaan II 53 mission Chandrayaan 53 Cargo Launch Vehicle 53 robotic explorers 53 Orion spacecraft 53 Chandrayan 53 NEOSSat 53 THEMIS satellites 53 microgravity experiments 53 manned lunar missions 53 Terrestrial Planet Finder 53 spaceplane 53 crewed missions 53 Chandrayaan 53 manned lunar mission 53 spaceflight 53 JIMO 53 geo stationary orbit 52 landers 52 Jupiter Icy Moons Orbiter 52 manned Shenzhou 52 Space Shuttle 52 astronauts 52 planetary explorations 52 Kliper 52 NASA Lunar Prospector 52 ExoMars mission 52 Altair lunar lander 52 lunar landing 52 ARCTUS 52 spaceports 52 Reusable Launch Vehicle 52 Viking landers 52 unpiloted 52 suborbital flights 52 Lunar Orbiter 52 Curiosity rover 52 LRO 52 manned orbital 52 Isro 52 Globalstar satellites 52 satellites orbiting Earth 52 Solar TErrestrial RElations Observatory 52 Earth orbit 52 Martian rover 52 payloads 51 Earth orbit LEO 51 sub orbital spaceflight 51 LISA Pathfinder 51 cryogenic engines 51 deorbiting 51 extravehicular activities 51 orbital insertion 51 unmanned lunar 51 mission Chandrayan 51 VASIMR 51 heavier payloads 51 Yinghuo 1 51 suborbital spaceflight 51 manned spaceflight 51 lunar orbiter 51 Astrosat 51 geostationary orbits 51 Churyumov Gerasimenko 51 meteorological satellites 51 Jupiter flyby 51 Mars rovers Spirit 51 Suborbital 51 Foton M2 51 lunar rover 51 ISRO 51 NFIRE 51 Enceladus flybys 51 NASA Kepler telescope 51 manned lunar landing 51 suborbital 51 manned spaceships 51 Martian rovers 51 flybys 50 Spaceguard 50 Nasa spacecraft 50 hypersonic flight 50 Phobos Grunt 50 SELENE probe 50 Hubble Servicing 50 planetary Transits 50 Voyager probes 50 manned Soyuz 50 Lunar Prospector 50 nanosatellites 50 manned spaceship 50 planetary exploration 50 lunar lander 50 PSLV rocket 50 lunar surface 50 sub orbital 50 Astrobotic 50 Minotaur IV 50 orbiting 50 Orbiter LRO 50 ferry SpaceShipTwo 50 Space Shuttle Program 50 Manned missions 50 enters lunar orbit 50 heliophysics 50 LCROSS mission 50 Mars orbiters 50 Space Agency 50 Climate Experiment GRACE 50 ferrying astronauts 50 Interorbital Systems 50 Orion capsule 50 spacefaring civilization 50 CHIPSat 50 orbit 50 ExoMars rover 50 GOCE satellite 50 Foton M3 50 SpaceX Dragon 50 ICESat 50 Galileo satellites 50 Ares rocket 50 lunar orbits 50 lunar 50 NROL 49 EPOXI mission 49 CubeSats 49 lunar spacecraft 49 reusable manned spacecraft 49 Phobos Grunt mission 49 Space Exploration 49 orbiting spacecraft 49 Voyager spacecraft 49 Nasa 49 BepiColombo mission 49 windshield wiper maneuver 49 remote sensing satellite Resourcesat 49 circumlunar 49 satellites 49 Mars Pathfinder lander 49 orbited Earth 49 lunar landings 49 ROCSAT 2 49 BepiColombo joint 49 geosynchronous 49 Huygens Probe 49 Hubble servicing 49 Glonass navigation satellites 49 Mars orbiter 49 DubaiSat 1 49 Canadarms 49 scramjets 49 spacecraft Hayabusa 49 space shuttle 49 GLONASS M 49 manned spaceflights 49 STSS Demo 49 PSLV C9 49 GSLV rockets 49 Launch Abort System 49 robotic rover 49 planemos 49 twin Voyager spacecraft 49 GSLV D3 49 Orion CEV 49 hypersonic 49 Resourcesat 49 Mars orbiting spacecraft 49 TacSat 49 geo synchronous 49 Pluto Kuiper Belt 49 probe Chang'e 49 Dyna Soar 49 Glonass K 49 PSLV 49 Mars# 49 Lunar Exploration 49 OSIRIS Rex 49 shuttle missions 49 GSLV Mk III 49 JAXA 49 celestial observations 48 ESA Planck 48 geosynchronous orbit 48 Shenzhou V spacecraft 48 SpaceShip One 48 GOCE 48 lander 48 NASA Kepler 48 Mars Pathfinder 48 Satellite Launch Vehicle 48 Orion Crew 48 Hubble Space Telescope HST 48 SMOS Soil Moisture 48 shuttle orbiter 48 Carl Marchetto 48 parachutes malfunctioned 48 Orbital Space 48 ExoMars 48 Mars Surveyor 48 spaceships 48 rovers Spirit 48 OCO satellite 48 spacefaring 48 Minotaur rocket 48 Orbital Express 48 SIRTF 48 WISE spacecraft 48 spacecraft Chandrayaan 1 48 IBEX spacecraft 48 Skylab 48 Shenzhou spaceships 48 shuttle Endeavour STS 48 JWST 48 Apollo lunar 48 orbiters landers 48 ESA ASI 48 Martian lander 48 Shenzhou VI 48 GSLV 48 Rosetta spacecraft 48 Ares I. 48 Alphabus 48 hypersonic speeds 48 WMAP satellite 48 Saturnian moon Titan 48 Deep Impact comet 48 ESA SMART 48 Chang'eI 48 WGS satellites 48 spacecraft orbiting 48 Bigelow Aerospace 48 scramjet engine 48 Decadal Survey 48 NASA rovers Spirit 48 Spacecraft 48 SBSP 48 Lunar Rover 48 Titan flybys 48 lunar explorer 48 COROT 48 Cygnus spacecraft 48 ESA Huygens probe 48 Centennial Challenges 48 spacecraft orbited 48 probe Huygens 48 high altitude airship 48 infrared telescopes 48 Fermi telescope 48 lander rover 48 duration spaceflights 48 SIM PlanetQuest 47 occultations 47 SpaceshipTwo 47 lunar probe 47 GSLV rocket 47 wheeled rovers 47 STEREO mission 47 TDRS satellites 47 orbiter lander 47 lunar probe Chang'e 47 Earth orbiting satellites 47 Russians Alexander Kaleri 47 twin rovers Spirit 47 Vehicle CEV 47 orbital 47 Mars 47 astronaut 47 SCISAT 47 lunar outpost 47 Apollo Skylab 47 Commercial Reusable Suborbital 47 Shenzhou VI capsule 47 outer planets 47 scramjet 47 Crew Launch Vehicle 47 Michibiki 47 Cassini Huygens Mission 47 Saturn Cassini 47 atmospheric reentry 47 astronauts Nicole Stott 47 FASTSAT 47 unmanned Shenzhou 47 inhabitable planets 47 Antenna LISA 47 Mercury Redstone 47 Resourcesat 2 47 Ares IY 47 moonbase 47 Taurus XL 47 SpaceX Falcon 9 47 nanosatellite 47 Landsat satellites 47 gravitational lenses 47 spaceship 47 NuSTAR 47 Shuttle Endeavour blasts 47 remote sensing satellite 47 COSMO SkyMed 47 OSIRIS REx 47 CALIPSO 47 Centre VSSC 47 Glonass satellites 47 Europa Orbiter 47 rovers 47 spaceward 47 mineralogical mapping 47 Great Observatories 47 Interplanetary Internet 47 suborbital rocket 47 LEO satellites 47 LightSail 47 Mars rover 47 lunar explorers 47 Evolved Expendable Launch Vehicle 47 shuttle Discovery STS 47 reentries 47 Helios 2B 47 shuttle orbiters 47 Planck spacecraft 47 Northrop Grumman Weightless Flights 47 Infrared Astronomical Satellite 47 stratospheric airship 47 geosynchronous satellites 47 Stardust spacecraft 47 geosynchronous satellite launch 47 Russian cosmonaut Yuri Gagarin 47 laser altimeter 47 retroreflector 47 CARTOSAT 47 Herschel telescope 47 Soviet cosmonauts 47 comet flyby 47 Shenzhou VI craft 47 SpaceLoft XL rocket 47 robot rovers 47 Ares rockets 47 experiments 47 KSLV 1 47 DART spacecraft 47 Laboratory MSL 47 Cosmonaut Yuri Gagarin 47 SpaceLoft XL 47 HAMSAT 47 Plane OSP 47 GSLV D3 rocket 46 interplanetary probes 46 astronauts Jing Haipeng 46 Foton spacecraft 46 Mercury Gemini 46 exobiology 46 Explorers ASE 46 NAVSTAR Global Positioning System 46 aboard Atlantis 46 Mars Atmosphere 46 Remote Sensing Satellite 46 Shenzhou orbital modules 46 spokesman Barron Beneski 46 Agni III 46 Soyuz rocket 46 Dream Chaser 46 unmanned rover 46 lunar orbiter Chandrayaan 46 shuttle Endeavor 46 Blackswift 46 X ray observatories 46 Mars Reconnaissance Orbiter MRO 46 suborbital flight 46 cryogenic engine 46 rover Opportunity 46 planets orbiting sun 46 Ariane rocket 46 Huygens mission 46 Hayabusa spacecraft 46 mere fly bys 46 CubeSat 46 John Callas rover 46 Exploration Vehicle 46 indigenous cryogenic engine 46 Soyuz rockets 46 entered lunar orbit 46 onboard Chandrayaan 46 astrophysical phenomena 46 spacecraft Cassini 46 interplanetary spacecraft 46 origami masters 46 STEREO spacecraft 46 fiery reentry 46 spacecraft SpaceShipTwo 46 RADARSAT 2 46 Galileo spacecraft 46 Ulysses spacecraft 46 Virgin Galactic SpaceShipTwo 46 Viking Lander 46 geo stationary satellites 46 moonwalkers 46 GPS IIF 46 infrared astronomy 46 IceBridge 46 NASA THEMIS 46 MUOS satellite 46 geostationary communications 46 Gravity Probe B 46 uncrewed 46 lunar orbiting spacecraft 46 spacefarers 46 LADEE 46 Kepler Mission 46 Lunokhod 46 duration spaceflight 46 Megha Tropiques 46 spacemen Timothy Kopra 46 lunar soil 46 Ares V 46 Laser Interferometer Space 46 indigenous cryogenic stage 46 NLSI 46 MARSIS 46 ion propulsion 46 Multi Purpose Crew 46 PSLV C8 46 orbiting Saturn 46 hypersonic missiles 46 Giove B 46 Space ENvironment GEochemistry 46 Mercury flyby 46 INSAT 4CR 46 colonize Mars 46 ISRU 46 Viking orbiters 46 autonomous rendezvous 46 lunar orbit 46 X ray observatory 46 unmanned airship 46 International Space Station 46 ballistic trajectory 46 EELV 46 LRO spacecraft 46 planets orbiting distant 46 Relations Observatory STEREO 46 Research Organisation Isro 46 CAIB recommendations 46 Solar Orbiter 46 SpaceX Dragon capsule 46 APXS 46 Orbiter 46 Jules Verne ATV 46 High Altitude Airship 46 Deep Impact eXtended Investigation 46 Geosynchronous Satellite Launch Vehicle 46 YES2 46 Cryosat 46 orbital maneuvers 46 SMOS mission 46 Mojave Spaceport 46 Insat 4B 46 LSAM 46 Kepler Telescope 46 GALEX 46 hypersonic scramjet 46 Air Force Evolved Expendable 46 hypersonic jet 46 Discovery undocks 46 Ariane launchers 46 SMOS 46 LCROSS spacecraft 46 spacefaring nations 46 asteroids comets 46 NASA Administrator 46 MirCorp 46 MPCV 46 PSLV C 46 hypervelocity 46 Astronaut Corps 46 DragonLab 46 spaceliner 46 GEO satellites 45 Shuttle Endeavour undocks 45 ARRL AMSAT 45 Vehicle GSLV 45 moon 45 NASA Stratospheric Observatory 45 closest flyby 45 KODAK CCD Image Sensors 45 GLAST telescope 45 Astro E2 45 astronaut Yang Liwei 45 NASA ICESat 45 Manned Spaceflight 45 Launch Vehicle 45 Douglas Hudgins Kepler 45 reconnaissance orbiter 45 Mars Opportunity rover 45 Virgin Galactic unveils 45 Orion Ares 45 Jovian moons 45 manned spacecraft Shenzhou VI 45 microsatellites 45 twin Viking landers 45 AIRSS 45 DSCS satellites 45 Shenzhou VIII 45 Solid Rocket Boosters 45 reusable suborbital 45 gamma ray observatory 45 INSAT satellites 45 astrobiologists 45 Cassini Huygens spacecraft 45 THEMIS mission 45 spacefaring nation 45 Shenzhou V 45 icy comets 45 suborbital space 45 Lunar Reconnaissance Orbiter 45 INSAT 4B 45 Educator Astronaut 45 comets asteroids 45 Spitzer infrared telescope 45 Shuttle Discovery undocks 45 Astronaut Scholarship 45 NASA Gamma ray 45 shepherding spacecraft 45 Sojourner rover 45 Kepler observatory 45 Discovery liftoff 45 Horizons spacecraft 45 Titan flyby 45 highly elliptical orbit 45 Atlantis STS 45 flea hop 45 Cartosat 2A 45 HyShot 45 observatories 45 EVAs 45 Mars rovers 45 hypersonic missile 45 Geosynchronous 45 Cosmic Vision 45 Esrange 45 GeneSat 45 reentry capsule 45 EELVs 45 Gamma ray Large 45 ESTRACK 45 STSS Demonstration 45 Perminov 45 Herschel Planck 45 Lunar Lander Challenge 45 Red Planet 45 JIMO mission 45 Geo synchronous 45 NPO Lavochkin 45 Astronautical Society 45 Orbiters 45 HIAPER 45 simulated weightlessness 45 extrasolar planets 45 Galileo constellation 45 Huygens descent 45 Heliophysics Division 45 SpaceDev Dream Chaser 45 exoplanet hunter 45 Richard Gilbrech 45 infrared observatory 45 airborne observatory 45 Apollo Soyuz 45 Shuttle Discovery blasts 45 ExoMars Trace Gas 45 Soyuz TMA spacecraft 45 Observatory STEREO 45 observing satellites 45 Cosmic Background Explorer 45 aerobraking 45 astronomical observations 45 commander Dmitry Kondratyev 45 rover Sojourner 45 OSTM Jason 2 45 INSAT satellite 45 Hubble orbits 45 wife commissioned Celestis 45 Soyuz 45 indigenous cryogenic 45 Endeavour docked 45 SpaceX Falcon 45 planetary flybys 45 Apollo astronauts 45 Itokawa 45 manned suborbital 45 HiRISE camera aboard 45 WK2 45 astrometry 45 Psychological profiling 45 New Horizons spacecraft 45 PSLV C6 45 Eutelsat KA SAT 45 Director Charles Elachi 45 lunar orbiter Chang'e 45 SpaceShip Two 45 orbiting Hubble Space Telescope 45 hypersonic glider 45 orbital velocity 45 Vega launcher 45 Spaceguard Survey 45 TDRS K 45 Orbiter MRO 45 #P/Churyumov-Gerasimenko 45 orbit GEO 45 Globalstar constellation 45 prebiotic molecules 45 countdown dress rehearsal 45 EPOCh 45 Cartosat 45 shuttle 45 CCDev 45 Cassini flybys 45 Spacewatch 45 ESO telescopes 45 spaceborne 45 LightSail 1 45 astronaut Rusty Schweickart 45 astrobiology 45 Shepherding Spacecraft 45 Gedmark 45 Alpha Magnetic Spectrometer 45 Remote Sensing Satellites 45 neutrino detectors 45 expeditions 45 Dnepr rocket 45 alien civilizations 44 exoplanet discoveries 44 SPHERES 44 director Gene Kranz 44 spacewalks 44 Vehicle PSLV 44 Flyby spacecraft 44 robotic lander 44 Saturn moon 44 INSAT 3D 44 Scaled Composites SpaceShipOne 44 gravitational microlensing 44 NASA Lunar Reconnaissance 44 Sun synchronous orbit 44 OGLE TR #b 44 Kibo module 44 Observatory SDO 44 Operationally Responsive Space 44 rocketships 44 twin rover Opportunity 44 space shuttles 44 NM spaceport 44 SELENE lunar satellite 44 Dnepr rocket carrying 44 Liquid Apogee Motor 44 LRO LCROSS 44 Kiruna Sweden 44 unmanned spaceplane 44 bone jarring descent 44 aboard Skylab 44 PSLV C7 44 Richard Branson Virgin Galactic 44 interplanetary 44 orbiting gamma ray 44 Interior Laboratory GRAIL 44 NASA EPOXI mission 44 Cloud Aerosol Lidar 44 simulated lunar 44 Saturn moons 44 Mars Odyssey spacecraft 44 Space Flight 44 NASA Stardust spacecraft 44 lunar module Eagle 44 Mars rover Curiosity 44 Project Ozma 44 SSETI Express 44 Shenzhou capsule 44 Discovery STS 44 asteroid collisions 44 Soyuz spacecraft 44 Pete Theisinger 44 Yuri Night 44 astronaut helper 44 ion thruster 44 polar orbit 44 micrometeoroids 44 UP Aerospace 44 Impact Probe MIP 44 SpaceX 44 spacewoman 44 Opportunity rovers 44 Heliophysics 44 Helios 2A 44 Simonetta Di Pippo ESA 44 Titan IVB 44 Readdy 44 Rocketplane 44 Gemini Apollo 44 NASA Kepler spacecraft 44 Sirangelo 44 Jules Verne Automated Transfer 44 Von Braun 44 Terrier Orion 44 Sensing Satellite LCROSS 44 Space Fence 44 MetOp 44 telescopic observations 44 agency Roskosmos 44 highly elliptical orbits 44 extrasolar planetary systems 44 Constellation Ares 44 Hayabusa probe 44 Oceansat 2 44 NASA satellites orbiting 44 TecSAR 44 journal Meteoritics 44 Dragon spacecraft 44 Compton Gamma Ray 44 VASIMR engine 44 CX OLEV 44 Space Telescope GLAST 44 ISS resupply 44 scramjet engines 44 Webb Telescope 44 Martian terrain 44 Orbital Taurus 44 orbiting telescopes 44 lunar equator 44 GOSAT 44 O OREOS 44 orbited Jupiter 44 Vehicle PSLV rocket 44 detect gravitational waves 44 Sun Laiyan 44 Planck satellite 44 X ray telescopes 44 dimensional atlas 44 Earthlike planets 44 Cubesat 44 ASTRA 1KR 44 Jupiter Ganymede 44 module Kibo 44 Geo IK 44 entire Milstar constellation 44 KSLV 44 Shuttle undocks 44 CBAT 44 KBOs 44 missions 44 moon Europa 44 Mirelson 44 Recovery Experiment SRE 44 NASA MESSENGER spacecraft 44 exoplanetary 44 venerable Soyuz rocket 44 Israeli astronaut Ilan 44 Orion spaceship 44 Taikonauts 44 HEO payload 44 Japanese Aerospace Exploration 44 RESOURCESAT 44 propulsion subsystem 44 Max Launch Abort 44 Polar Satellite Launch 44 orbiter Cassini 44 GLAST 44 GSLV F# 44 Cartosat 2B 44 GPS IIR M 44 NASA LCROSS 44 GIOVE B 44 Infrared Astronomy 44 breathing scramjet engine 44 weather satellite TIROS 44 Orion LAS 44 Cancri e 44 twin rovers 44 Launch Scrubbed 44 commander Leroy Chiao 44 Galilean satellites 44 Astronauts inspect 44 Infrared Astronomical Satellite IRAS 44 Mars Rover 44 exhaust plume 44 Continuity Mission LDCM 44 Itokawa asteroid 44 parafoil 44 Fermi Telescope 44 polar orbiting satellites 44 Aerojet propulsion 44 Carina constellation 44 traveled rocketship 44 geosynchronous satellite 44 Shenzhou manned 44 SSMEs 44 Situ Resource 44 Russian Nikolai Budarin 44 PSLV C# 44 asteroid Itokawa 44 Cassini flyby 44 gravitational slingshot 44 Space Capsule 44 Nasa Mars Reconnaissance 44 Human Spaceflight 44 satellites orbiting 44 skipper Peggy Whitson 44 unpiloted aircraft 44 Infrared Astronomy SOFIA 44 twin STEREO spacecraft 44 planetary science 44 spacecraft Chandrayaan 44 Space Infrared Telescope 44 SAR Lupe 44 Atlantis Undocks From 44 Ares IX 43 Mars rovers Opportunity 43 NEEMO 43 Lt. Col. Yang Liwei 43 Doohan ashes 43 earth orbiting satellites 43 ESA GOCE 43 neutrino experiments 43 Judy Resnik 43 DigitalGlobe WorldView 43 Kepler 9c 43 Russian Mikhail Tyurin 43 AERONET 43 Jupiter moons 43 astrobiological 43 Soyuz craft 43 Interstellar Boundary Explorer 43 Soyuz launcher 43 geostationary satellite 43 SpaceDev 43 Human Spaceflight Microgravity 43 space shuttle orbiters 43 Space Administration CNSA 43 rockets 43 orbiting Kepler telescope 43 suborbital spaceflights 43 situ measurements 43 asteroid deflection 43 Solid Rocket 43 SPACEHAB 43 satellite Kwangmyongsong 2 43 Atlas IIAS 43 BBSNews #-#-# NASA 43 rocket 43 Sergei Gorbunov spokesman 43 Visit SPACE.com 43 Beta Pictoris b 43 Stratellite 43 Proba 43 AEHF 43 spectroscopic observations 43 Satellite Launch Vehicle GSLV 43 drogue parachute 43 spacecraft flyby 43 Vinasat 43 NASA twin STEREO 43 NASA Cosmic Background 43 LDCM 43 orbiting telescope 43 robotic geologists 43 Mars Orbiter 43 rocketry 43 Centaur rocket 43 interplanetary voyage 43 Soyuz FG 43 Donald Deke Slayton 43 magnetic spectrometer 43 NASA WMAP 43 X #B Orbital 43 Shenzhou IV 43 Lunar X PRIZE 43 Astronautical Science 43 Lunar Roving Vehicle 43 SuitSat 43 Atlantis undocks 43 heaviest payloads 43 Thirty Meter Telescope 43 spokesman Igor Panarin 43 Rover MER 43 robotic explorer 43 Moon Mineralogy Mapper 43 NASA twin rovers 43 Mars moon Phobos 43 geostationary 43 SpaceShipTwo 43 Martian surface 43 Shenzhou capsules 43 Zhang Jianqi 43 Studsat 43 UNITeS contract 43 rocket scientist Wernher 43 HTV2 43 remote sensing instruments 43 Divine Vessel 43 orbits 43 Xerus 43 dexterous humanoid robot 43 Rusty Schweickart 43 suborbital spaceships 43 GPS IIIA satellite 43 prototype humanoid robot 43 NASA Cassini 43 Planetary Society 43 Yuri Gagarin blasted 43 buckypaper virtually 43 Weightless Wonder 43 interstellar dust samples 43 ATV Johannes Kepler 43 David Southwood ESA 43 director Chuck Dovale 43 INSAT 4A 43 resupply missions 43 downlinks 43 Thales Alenia 43 sister rover Spirit 43 MARSIS radar 43 exo planets 43 RBSP 43 Earth Observations 43 EPOXI 43 Asteroid Itokawa 43 Flight Readiness 43 Lockheed Martin Waterton Canyon 43 AMIE camera 43 Proba 2 43 pressurized module 43 LEMV 43 cosmic ray 43 GLONASS satellites 43 inter planetary 43 Russian Soyuz spacecraft 43 deorbit 43 Servicing Mission 43 SumbandilaSat 43 durable twin rovers 43 Orbital Sciences 43 laboratory Skylab 43 TerraSAR X 43 MARSIS instrument 43 stratospheric balloon 43 outer space 43 Masten Space Systems 43 Kepler telescope 43 Payloads 43 Philae lander 43 Minotaur IV rocket 43 Exceptional Achievement Medal 43 Cosmic Background Explorer COBE 43 AEHF satellite 43 INSAT 4C