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(Click for frequent words.) 72 Atlas 2AS 69 PSLV C6 69 GPS 2R 68 Minotaur IV 67 STP S# 67 ASTRA 1L 66 GPS IIR 66 GPS IIR M 65 Pegasus XL 65 Launch Scrubbed 65 NROL 65 Proton Breeze M 65 X #A WaveRider 65 GPS IIF 65 SpaceX Falcon 9 65 Titan IVB 64 PSLV C# 64 Solid Rocket Boosters 64 Atlas V 64 PSLV C9 64 Fregat upper stage 64 Zenit 3SL 64 Satellite Launch Vehicle GSLV 64 Minotaur rocket 64 PSLV C 63 JCSAT 9 63 Orbital Pegasus 63 ASTRA 1KR 63 Optus D3 63 H IIB 63 SpaceLoft XL 63 Ariane 5G 62 weather satellite TIROS 62 Rockot 62 Orbital Express 62 A# spacecraft 62 Cygnus spacecraft 62 Soyuz FG 62 Kazakhstan Baikonur Cosmodrome 62 NASA Ares IX 62 ATV Johannes Kepler 62 ULA Atlas 62 BepiColombo 62 Block 5D 62 GOES O 62 Titan 4B 62 SpaceX Falcon 62 Reusable Launch Vehicle 62 GSLV D2 61 Geo Synchronous Satellite Launch 61 Space Shuttle STS 61 ULA Delta 61 Taurus XL 61 geosynchronous satellite launch 61 Launch Vehicle 61 PSLV C7 61 SSMEs 61 Lunar Rover 61 Vehicle OBV 61 ILS Proton 61 Orion CEV 61 SpaceX Dragon 61 ILS Proton Breeze 61 Exploration Vehicle 61 Sounding Rocket 61 Launch Vehicle EELV 61 aboard SpaceX Falcon 61 Kosmos 3M 61 Merlin 1C 60 ATV Jules Verne 60 Geo synchronous 60 MEASAT 3a 60 satellite Giove 60 Geosynchronous Satellite Launch Vehicle 60 INSAT 3A 60 INSAT 4CR 60 Launch Abort System 60 ILS Proton rocket 60 COSMO SkyMed 60 veteran spaceflyer 60 Vehicle ATV 60 LRO LCROSS 60 geosynchronous satellite 60 TIROS 60 Plesetsk Cosmodrome 60 SLC 3E 60 Molniya 60 Vehicle GSLV 60 George Zamka 60 SCISAT 60 Jules Verne ATV 60 Express AM# 60 Foton M3 60 PSLV C# rocket 60 Lunar Orbit 60 Foton M2 60 Eurostar E# 60 geosynchronous transfer orbit 60 Dyna Soar 59 Interior Laboratory GRAIL 59 Giove B 59 Vandenberg AFB Calif. 59 Cloud Aerosol Lidar 59 SpaceLoft 59 Satellite Successfully Launched 59 Infrared Astronomy SOFIA 59 System Block IIR 59 Solid Rocket 59 Orbital Sciences Taurus 59 MetOp satellite 59 Convection Rotation 59 Baikonur Cosmodrome Kazakhstan 59 HyShot 59 Crew Launch Vehicle 59 Helios 2B 59 Satellite Launch Vehicle 59 Orbital Taurus 59 PSLV rocket 59 STSS Demo 59 Shuttle Endeavor 59 Zenit 3SL rocket 59 Kosmos 3M rocket 59 Cargo Launch Vehicle 59 Technology Demonstrator 59 Arianespace Ariane 5 59 GIOVE B 59 Insat 3A 59 JCSAT 59 Atlantis STS 59 WhiteKnightTwo mothership 59 ISRO Polar 59 NAVSTAR Global Positioning System 59 H IIA 59 geo synchronous satellite 59 ESA Automated Transfer 59 Reaches Orbit 59 SBSS satellite 59 BSAT 3a 59 Orion Crew 59 Alliance Successfully Launches 59 Metop 59 Dragon spacecraft 59 Modernized GPS Satellite 59 ST5 58 Arabsat 5A 58 NASA Wallops 58 MetOp 58 Skynet 5C 58 Dnepr rocket 58 GSLV rocket 58 ARES IX 58 WhiteKnight 58 Orbital Taurus II 58 Oefelein piloted 58 VMS Eve 58 payload fairing 58 Skynet 5B 58 GLAST spacecraft 58 Vehicle PSLV 58 Orbital Minotaur 58 Jules Verne Automated Transfer 58 Orbital Boost 58 Infrared Pathfinder Satellite 58 Space Capsule 58 Foton spacecraft 58 WhiteKnightTwo WK2 58 FalconSat 58 Scaled Composites SpaceShipOne 58 Pad Abort 1 58 PSLV C8 58 Readiness Review 58 Stargazer L 58 Mars Pathfinder lander 58 Russian Soyuz Fregat 58 Satellite Launch Vehicle PSLV 58 GSLV D3 rocket 58 VINASAT 1 58 INSAT 3E 58 STPSat 58 Endeavour STS 58 Curiosity rover 57 probe Chang'e 57 Booster Separation 57 geostationary transfer 57 Commander Charlie Hobaugh 57 SBIRS GEO 57 WISE spacecraft 57 planetary Transits 57 Astronauts Arrive 57 Launched Successfully 57 GSLV rockets 57 ECA launcher 57 NASAs 57 PSLV 57 Successfully Launched 57 orbital rendezvous 57 Launch Postponed 57 NASA Stratospheric Observatory 57 Proba 2 57 Solar Sail 57 Satellite GOSAT 57 INSAT 4A 57 director Chuck Dovale 57 OCO satellite 57 spaceward 57 Recovery Experiment SRE 57 Starsem 57 Pilot George Zamka 57 GSLV D3 57 II D5 Fleet 57 Soyuz Fregat 57 spaceplane 57 Satellite Launch 57 IBEX spacecraft 57 GSLV F# 57 Solar TErrestrial RElations Observatory 57 aboard Soyuz TMA 57 Servicing Mission 57 Rosetta comet chaser 57 Pad #B 57 Cassini Huygens Mission 57 Atlas Centaur 57 AEHF satellite 57 NASA MESSENGER spacecraft 57 NPO Lavochkin 57 countdown dress rehearsal 57 HEO payload 56 Ocean Salinity 56 GOES N 56 Ariane rocket 56 Centaur upper 56 NFIRE 56 Into Orbit 56 Wideband Global 56 Soyuz launcher 56 optionally piloted 56 Eurostar E# platform 56 payload fairings 56 WK2 56 spacecraft 56 Lunar Reconnaissance Orbiter LRO 56 Lifts Off 56 Shuttle Crew 56 DSCS III 56 SpaceShip Two 56 unmanned rotorcraft 56 Block IIF 56 ILS Proton launch 56 BRAHMOS 56 GPS Block IIF 56 hypersonic scramjet 56 Full Operational Capability 56 nanosatellite 56 Ariane 5 56 Yuri Lonchakov 56 WhiteKnightTwo carrier 56 unpiloted 56 shuttle Discovery STS 56 RSRMs 56 Kourou French Guyana 56 spacecraft orbited 56 Ocean Salinity SMOS 56 Eurockot Launch Services 56 Polar Satellite Launch 56 Lunar Module Pilot 56 Moon Mineralogy Mapper M3 56 Lunar Module 56 ARCTUS 56 SAR Lupe 56 SATCOM Satellite 56 INSAT 3D 56 MPCV 56 Cosmodrome 56 unmanned spaceplane 56 SaM# engine 56 Foton M3 mission 56 orbiter Cassini 56 Astronaut Julie Payette 56 SpaceLoft XL rocket 56 CHIPSat 56 TanDEM X 56 LMCSS 56 Falcon 1e 56 Globalstar satellites 56 Skynet 5A 56 exoatmospheric kill vehicle 56 Space Infrared Telescope 56 geo stationary orbit 56 Commander Rick Sturckow 56 VSS Enterprise 56 Rockot launch 56 Max Launch Abort 55 Volna rocket 55 Intermediate Range Ballistic 55 Environment Explorer LADEE 55 aboard Vostok 55 suborbital trajectory 55 Cosmonaut Yuri Gagarin 55 KSLV 1 55 Lunar CRater Observation 55 HyFly 55 Scramjet 55 unmanned Shenzhou 55 Technology Insertion 55 dummy payload 55 Orion spacecraft 55 Terrier Orion 55 Orbital Sciences Pegasus 55 Advanced Tactical 55 SATCOM WGS satellite 55 3rd SOPS 55 OMS pods 55 SMOS Soil Moisture 55 Soyuz TMA spacecraft 55 suborbital sounding 55 Space Launch Vehicle 55 LISA Pathfinder 55 Discovery STS 55 KA SAT satellite 55 Taurus XL rocket 55 Commander Sergei Volkov 55 Relative Navigation 55 Launch Pad #B 55 comet chaser 55 Technology Demonstration JCTD 55 Spacebus 55 NASA Stardust spacecraft 55 ESA Planck 55 orbit GEO 55 INSAT 4C 55 manned Soyuz 55 GSLV F# carrying 55 Variable Specific 55 ASTRA 3B 55 Electric Propulsion 55 Insat 4A 55 FASTSAT 55 UK DMC2 55 BSAT 3b 55 Anik F3 55 dexterous robot 55 ESA SMART 55 CCAFS 55 EchoStar XV 55 WGS satellite 55 communication satellite GSAT 55 Lunar Orbiter 55 Walter Schirra 55 Unmanned Aircraft System 55 Spacecraft 55 Anik G1 55 Boeing #SP 55 NASA Stardust NExT 55 Thales Alenia 55 Rokot 55 geo synchronous transfer 55 Facility SIRTF 55 C 5M 55 STATION Fla. 55 GPS IIF satellite 55 shuttle Endeavor 55 Astrium Satellites 55 NPOESS Preparatory Project 55 ESA Rosetta 55 WGS Block 55 NFIRE satellite 55 YES2 55 #th FLTS 55 indigenous cryogenic stage 55 Rockot launcher 55 OG2 satellites 55 P Churyumov Gerasimenko 55 Vehicle PSLV C9 55 Pirs docking compartment 55 Breeze KM 55 Soyuz Fregat rocket 54 DIRECTV 9S 54 polar orbiting 54 manned Shenzhou 54 propellant loading 54 GPS IIF satellites 54 unarmed Minuteman 54 Shuttle Orbiter 54 Pilot Terry Virts 54 Continuity Mission LDCM 54 Manned Spacecraft Center 54 VASIMR 54 Shenzhou V spacecraft 54 indigenously developed cryogenic 54 System SBIRS 54 NOAA GOES 54 Baikonour 54 shuttle Endeavour STS 54 propulsion subsystem 54 GOCE satellite 54 LSAM 54 Stratospheric Observatory 54 Investigation DIXI 54 X #A scramjet 54 Huygens Probe 54 Shepherding Spacecraft 54 Geosynchronous 54 NuSTAR 54 Helioseismic 54 Wallops Island Va. 54 Vehicle PSLV C# 54 Astrotech payload processing 54 ESA GOCE 54 Crew Prepares 54 MESSENGER spacecraft 54 airborne observatory 54 ISRO Chandrayaan 54 SpaceShipTwo SS2 54 ICO G1 54 Venus Climate Orbiter 54 Jupiter Icy Moons 54 Space Shuttle Orbiter 54 Planetary Transits 54 TDRS K 54 Oceansat 2 54 Infrared Camera 54 Space Shuttle Endeavour 54 Nimiq 5 54 Lunar Surface 54 GSAT 5P 54 Ares IX rocket 54 Tomahawk Block 54 NAVSTAR 54 Dragon capsule 54 Fregat 54 Origins Spectral Interpretation 54 Virgin Galactic unveils 54 EZ Rocket 54 CrIS 54 geo synchronous 54 Ranging spacecraft 54 Rosetta orbiter 54 pressurized module 54 Orbiter LRO 54 Chang'eI 54 Ted Gavrilis 54 Eutelsat W2A satellite 54 aft skirt 54 SSPTS 54 P#/P# truss 54 Astra 1M 54 Mars Pathfinder 54 modified Boeing #SP 54 geostationary earth 54 Vostok 3KA 54 Insat 4CR 54 SBIRS HEO 54 GSLV Geosynchronous Satellite Launch 54 hydrazine thrusters 54 Hypersonic Flight 54 GSLV Mk III 54 HAMSAT 54 Raytheon Delivers 54 commander Zhai Zhigang 54 Dryden Aircraft 54 geosynchronous 54 Optus D2 54 VINASAT 54 Tactical Tomahawk 54 Shuttle Docks 54 NASA Cosmic Background 54 heaviest payloads 54 Space Shuttle Atlantis 54 HC #J 54 Main Engine SSME 54 Glonass navigation satellites 54 Impactor 54 ELM PS 54 Plesetsk 54 Geo Synchronous Launch Vehicle 54 specialists Scott Parazynski 54 Japan Kibo laboratory 54 Aerial Vehicle 54 EchoStar XIV 54 Hyperspectral Imager 53 Cosmo SkyMed 53 mothership WhiteKnightTwo 53 PurePower TM 53 Vostok spacecraft 53 indigenous cryogenic engine 53 somersaulting maneuver 53 Vehicle PSLV rocket 53 Space Shuttle Endeavor 53 Briz M booster 53 Space Shuttle 53 hypersonic glider 53 J 2X engine 53 Cartosat 2A 53 Vehicle CEV 53 Ariane launcher 53 GLONASS M 53 Risky Spacewalk 53 Lockheed Martin Waterton Canyon 53 sun synchronous orbit 53 Geostationary 53 Roman Romanenko 53 Interorbital Systems 53 ESA ERS 53 docking compartment 53 Hyper X 53 ICO G1 satellite 53 Air Missile AMRAAM 53 Eurockot 53 Meteorological Satellite 53 CARTOSAT 2A 53 nEUROn 53 EKV 53 J 2X 53 Space Shuttle Endeavour STS 53 SELEX Sensors 53 liquid propellant 53 SkySat 53 Planck spacecraft 53 Silver Dart 53 Europa Orbiter 53 AJ# engine 53 Solar Arrays 53 Baikonur Kazakhstan 53 Characterization EPOCh 53 Laser COIL 53 CALIPSO 53 Relations Observatory STEREO 53 Unmanned Combat Air 53 Hubble Space Telescope HST 53 Orbit Validation Element 53 cosmonaut Yuri Gagarin 53 CARTOSAT 53 Exploration Vehicle CEV 53 spacecraft Shenzhou 53 composite payload fairing 53 RQ 4A Global 53 BepiColombo mission 53 STSS satellites 53 Robotic Arm 53 Shuttle Carrier 53 PW#A 53 Geosynchronous Transfer Orbit 53 ProtoStar II 53 GSTB V2 53 interplanetary spacecraft 53 Alpha Particle 53 Phobos Grunt 53 LCROSS Centaur upper 53 Soyuz TMA #M 53 Mercury Redstone 53 RD AMROSS RD 53 remote sensing satellite Resourcesat 53 NPO Energomash 53 pressurized mating 53 Turksat 3A 53 RazakSAT 53 Permanent Multipurpose Module PMM 53 ExoMars Trace Gas 53 DIRECTV 7S 53 ESA Huygens probe 53 Mars Surveyor 53 successfully undocked 53 Astro Aerospace 53 Hubble Servicing 53 entire Milstar constellation 53 THEMIS Images 53 Multirole 53 Orion Launch Abort 53 Cape Canaveral AFS 53 X #A Waverider 53 Sacred Vessel 53 Geeky tweeters 53 Suite VIIRS 53 drogue parachute 53 MErcury Surface Space ENvironment 53 entered lunar orbit 53 Commander Pam Melroy 53 NASA STEREO 53 windshield wiper maneuver 53 uncrewed 53 INSAT 4B 53 CX OLEV 53 Orion LAS 53 ESA SMOS 53 Final Spacewalk 53 Astrosat 53 THEMIS Image 53 CBERS 2B 53 Manned Spacecraft 53 Ares IX 53 Plesetsk cosmodrome 53 EGBU 53 NEAR Shoemaker 53 GPS Block IIR 53 NASA Lunar Crater 53 Tanegashima Space Center 53 RL# engine 53 breathing supersonic combustion 53 High Frequency AEHF 53 Test Vehicle OTV 53 Webb Telescope 53 Lunar Exploration 53 Nasa Mars Odyssey 53 Security Regolith Explorer 53 Anik F2 53 Alphasat 53 Orbital Sciences Corporation 53 Landing Tactical Unmanned 53 Zenit 3SLB 53 Crawler Transporter 53 NAVSTAR GPS 53 Titan flyby 53 Minotaur IV rocket 53 Air Force Evolved Expendable 53 Koreasat 6 53 Evolved SeaSparrow Missile 53 crawler transporter 53 Chinasat 6B 53 AEHF 52 INSAT satellite 52 Aquarius SAC 52 Test TCDT 52 New Horizons spacecraft 52 TacSat 52 NASA EPOXI mission 52 Contract Modification 52 Nimiq 4 52 Russian crewmate Yuri 52 Astra 3B 52 Astrium Eurostar 52 Cryosat 52 ESA Astronaut 52 undocks 52 manned lunar landing 52 Mars Reconnaissance Orbiter MRO 52 Yaogan 52 Milstar satellites 52 Polar Operational 52 MQ 8B Fire 52 Yahsat Y1A 52 spacecraft Chandrayaan 1 52 Philae lander 52 Impact Probe MIP 52 Highly Adaptable Satellite 52 lunar orbiter Chandrayaan 52 Pete Siebold 52 Kwajalein Island 52 STS 52 Observatory SDO 52 Tactical UAV 52 Kepler observatory 52 FADEC equipped 52 Closest Approach 52 Earth Observation Satellite 52 radar altimeter 52 Infrared Astronomy 52 Soyuz launchers 52 Youthsat 52 Aboard Atlantis 52 KSLV 52 unpowered glide 52 Glonass satellites 52 Soyuz FG carrier 52 AirLaunch 52 Soyuz rocket carrying 52 VTUAV 52 Geosynchronous orbit 52 Yasny 52 Mojave Spaceport 52 commander Pam Melroy 52 manned orbital 52 Greenhouse Gases Observing 52 Glonass M 52 Orion CxP # 52 MUOS satellite 52 KSC Shuttle 52 Dmitri Kondratyev 52 Nasa spacecraft 52 decommissioned Peacekeeper 52 Virgin Galactic VSS Enterprise 52 SpaceShipOne rocket 52 fairing separation 52 Unmanned Aerial Vehicle 52 Astronauts Inspect Shuttle 52 Resourcesat 2 52 Esrange Space Center 52 Suborbital 52 Dryden Flight Research 52 Inertial Navigation System 52 NCADE 52 ISS Reshetnev 52 Saturn V 52 High Altitude Airship 52 GPS IIIA satellite 52 infrared observatory 52 Space Shuttle Launch 52 Thumba Equatorial Rocket 52 AEHF spacecraft 52 NASA Orbiting Carbon 52 ROCSAT 2 52 Payloads 52 Orbiter 52 Briz M upper 52 A#AX platform 52 Lockheed Martin Skunk Works 52 geostationary satellite 52 Shenzhou VIII 52 Lunar Landing 52 Mission SRTM 52 JTAC declared 52 rover Sojourner 52 Apstar 52 TDRSS 52 lunar probe Chang'e 52 Satellites GOES 52 laser altimeter 52 Short Range Ballistic 52 AEHF satellites 52 ion propulsion 52 ESA Herschel 52 Conducts Successful 52 Telesat Nimiq 52 RS #A 52 Russians Alexander Kaleri 52 onboard Chandrayaan 52 retroreflector 52 Solar Orbiter 52 NASA THEMIS 52 SEAKR Engineering 52 Ariane launchers 52 Rosetta spacecraft 52 O. Hobaugh 52 Alphabus 52 Mars rovers Opportunity 52 Stardust spacecraft 52 HIAPER 52 astronauts Gus Grissom 52 Geostationary Satellite Launch Vehicle 52 Cosmic Background Explorer 52 System MUOS 52 supersonic combustion 52 TDRS satellites 52 LADEE 52 Astronauts Begin 52 HTV2 52 STUAS Tier II 52 Anti Submarine Warfare ASW 52 Advanced Propulsion 52 Nuclear Spectroscopic Telescope Array 52 ramjet powered 52 rover Spirit landed 52 geosynchronous communications 52 Asteroid Mission 52 A#T 52 Ares IY 52 Manned Space 52 Cape Canaveral 52 gamma ray observatory 52 Systems NEX AIQ.H 52 satellite GSAT 52 Simonetta Di Pippo ESA 52 experimental payloads 52 Deke Slayton 52 X #B Orbital 52 Cape Canaveral FL 52 spaceship Shenzhou 52 geosynchronous orbit GEO 52 Kayser Threde 51 aeroshell 51 starboard truss segment 51 BBSNews #-#-# NASA 51 ESA Proba 51 RD AMROSS 51 gamma ray spectrometer 51 Landing Facility 51 Laboratory MSL 51 GeneSat 1 51 Automated Transfer Vehicle 51 S6 truss segment 51 Foton M3 spacecraft 51 THAAD interceptors 51 Rocket Launch 51 suborbital rocket 51 Human Spaceflight Microgravity 51 ISC Kosmotras 51 Mars Orbiter 51 Mars Opportunity rover 51 MKV L 51 Geo IK 51 astronaut Rick Sturckow 51 Baikonour Cosmodrome 51 SpaceShip 51 TecSAR 51 Atlantis Undocks From 51 HEO payloads 51 Ikon Fiesta 51 ESA CNES 51 parachutes malfunctioned 51 Undocking 51 deorbited 51 Commander Dick Scobee 51 Aerosonde Mark 51 Scout Vertical Takeoff 51 Orbiter MRO 51 geostationary orbit 51 AIM 9X 51 SH #B Seahawk 51 Successfully Delivers 51 SpaceshipTwo 51 Remote Sensing Satellite 51 Martian orbit 51 coastal Naro 51 Apollo lunar lander 51 Program DMSP 51 STS #L 51 Xerus 51 astronaut Rex Walheim 51 Léopold Eyharts 51 SSETI Express 51 Terrain Mapping Camera 51 Unmanned Aerial 51 Stratellite 51 pad #A 51 Cape Canaveral FL AHN 51 Propulsion System 51 Citation CJ3 51 Progress resupply 51 unstowed 51 NASAâ € ™ 51 deorbit 51 MZ 3A 51 Apollo Lunar Module 51 Satellite GOES 51 commander Leroy Chiao 51 Alexander Samokutyayev 51 Systems J UCAS 51 CAMCOPTER ® S 51 Oceansat 51 C NOFS 51 Orbital Sciences 51 tactical unmanned aerial 51 orbiter 51 Yuri Shargin 51 track Infrared Sounder 51 Andrei Borisenko 51 Cubesat 51 Soyuz spacecraft docked 51 Shuttle astronaut 51 Orion Ares 51 MISSE 51 SolarEagle 51 Spacelab 51 Clipper Lindbergh 51 Shuttle Challenger 51 propellant tanks 51 Payload Specialist 51 Evolved Expendable Launch Vehicle 51 Space Station Status 51 SMOS 51 graphite epoxy 51 Terminal Countdown Demonstration 51 Deep Impact Extended 51 EPOCh 51 Sun synchronous orbit 51 unmanned Progress 51 ASRC Aerospace Corporation 51 orbit insertion 51 Shenzhou manned 51 ARRL AMSAT 51 Cape Canaveral Fla 51 Titan intercontinental ballistic 51 ATK Thiokol Propulsion 51 Unmanned Aerial System 51 Sojourner rover 51 Nanosat 51 space module Tiangong 51 C #E Hercules 51 ramjet engine 51 Buzz Aldrin Apollo 51 orbit GTO 51 Reusable Solid Rocket 51 Garmin G# integrated 51 Kliper 51 STORRM 51 Navigation Satellite 51 MALD J 51 STOVL F 51 scramjet engine 51 Viper Strike 51 Spektr 51 Ultraviolet Imaging Spectrograph UVIS 51 Protokraft 51 Orbital Debris 51 Unha 2 51 Mars Atmosphere 51 Sample Return 51 Solar Sail Spacecraft 51 Yury Malenchenko 51 flyby spacecraft 51 NASA Gamma ray 51 kg payload 51 Herschel Planck 51 orbital insertion 51 Dnepr rocket carrying 51 landing VTOL 51 #M Topol 51 Japanese Experiment Module 51 hypersonic missile 51 payload canister 51 equatorial orbit 51 Boeing P 8A 51 engineer Nicole Stott 51 Vehicle UAV 51 Tactical Reconnaissance 51 Russian cosmonauts Alexander Kaleri 51 xenon ion 51 GOCE 51 A#T Hummingbird 51 RazakSAT satellite 51 Lockheed Martin Delivers 51 SELENE probe 51 Chandrayan 51 Commander Dmitry Kondratyev 51 Charlie Hobaugh 51 Harmony Node 51 spokesman Barron Beneski 51 ASTRA 1M 51 NigeriaSat 51 landing STOVL 51 MPLM 51 lunar spacecraft 51 Dominic Gorie 51 Soyuz #S 51 Leonardo Permanent Multipurpose 51 NASA LCROSS 51 unmanned Chandrayaan 51 System GMLRS 51 Wideband Gapfiller Satellite 51 Space Shuttle Discovery 51 radio occultation 51 Predator UAS 51 Astro E2 51 CH #K Heavy 51 NASA Ikhana 51 O OREOS 51 Dream Chaser 51 SECCHI 51 Block IIR 51 Russia Rassvet compartment 51 Solar Dynamics Observatory 51 Space Telescope GLAST 51 #/#-ton truss 51 Orbiter Processing Facility OPF 51 Panoramic Camera 51 Vertical Landing 51 CAPE CANAVERAL AIR FORCE 51 RSC Energia 51 orbiting observatories 51 Vertical Takeoff 51 lbf thrust 50 Joint Standoff Weapon 50 STSS Demonstration 50 Horizons spacecraft 50 lunar module pilot 50 arid Kazakh steppe 50 manned spaceships 50 spacecraft SpaceShipTwo 50 Soyuz Spacecraft 50 long endurance HALE 50 Bomber Squadron 50 Climate Sounder 50 MRM1 50 Deep Impact Spacecraft 50 wife commissioned Celestis 50 RL#B 2 50 Shallow Subsurface Radar 50 SDD phase 50 Phobos Explorer 50 spy satellites malfunctioned 50 SPACE STATION 50 Sponnick 50 Constellation Observing 50 Russians Fyodor Yurchikhin 50 Kepler Telescope 50 DragonLab 50 SPACE SHUTTLE 50 twin STEREO spacecraft 50 SSM# 50 Operational Evaluation 50 Remote Manipulator System 50 MP RTIP 50 Nasa Mars Reconnaissance 50 E 8C 50 expendable Atlas 50 Shadow Tactical Unmanned 50 Citation CJ4 50 Commander Dominic Gorie 50 ARIANE 50 Space Explorations