Related by context. All words. (Click for frequent words.) 65 ESA SMART 64 Viking landers 64 Convection Rotation 63 Viking Lander 62 retroreflector 62 Mars Pathfinder 62 Nasa spacecraft 61 Lunar Prospector 61 Comet Hartley 61 Lunar Orbiter 61 station Salyut 60 COROT 60 planetary Transits 60 NASA EPOXI mission 60 Vostok 3KA 60 Mars Pathfinder lander 60 Lunar Reconnaissance Orbiter LRO 60 smallest exoplanet 60 Kepler spacecraft 59 Churyumov Gerasimenko 59 Cassini Huygens 59 probe Chang'e 59 Galileo spacecraft 59 moons orbiting Saturn 58 lunar probe Chang'e 58 Servicing Mission 58 aboard Vostok 58 Sojourner rover 58 NASA LCROSS 58 CARTOSAT 58 Planetary Transits 58 Cryosat 58 Kepler Space Telescope 58 Comet Halley 58 HAT P 58 Ocean Salinity SMOS 58 NASA THEMIS 57 CoRoT 57 Hubble Space Telescope HST 57 Phobos Grunt 57 Elenin 57 WISE mapped 57 NASA Cosmic Background 57 planet TrES 57 TrES 57 ill fated Beagle 57 Apollo missions 57 Cosmonaut Yuri Gagarin 57 Kavoshgar 57 Giovanni Cassini 57 NASA Lunar Prospector 57 spacecraft 57 orbital rendezvous 57 Resourcesat 57 asteroid Eros 57 comet Wild 57 SIRTF 57 Voyager spacecraft 57 WFC3 57 orbiting observatories 57 Chandrayaan 56 NASA Stardust spacecraft 56 NROL 56 ESA ERS 56 LAGEOS 56 satellite Sputnik 56 manned Shenzhou 56 CoRoT satellite 56 Orbiter MRO 56 CryoSat 56 cosmonaut Yuri Gagarin 56 TacSat 56 Global Surveyor 56 Viking orbiters 56 WMAP satellite 56 asteroid Itokawa 56 NASA twin rovers 56 SOHO spacecraft 56 Space Capsule 56 unmanned probes 56 Orbiter LRO 56 robotic spacecraft 56 remote sensing satellite Resourcesat 56 Yaogan 56 NFIRE satellite 56 lunar equator 56 Salyut 55 ESO VLT 55 Planck spacecraft 55 NASA Kepler 55 KazSat 55 ray Space Telescope 55 Titan flyby 55 Mini SAR 55 Ofeq 55 BLG #Lb 55 Rosetta spacecraft 55 New Horizons spacecraft 55 LightSail 55 Moon Mineralogy Mapper M3 55 Satellite Launch Vehicle 55 Deep Impact eXtended Investigation 55 Rosetta orbiter 55 telescopic observations 55 Mars Reconnaissance Orbiter MRO 55 NASA MESSENGER spacecraft 55 Martian surface 55 spacecraft orbited 55 Rockot launcher 55 GALEX 55 lunar orbiter Chang'e 55 orbiter Cassini 55 Solar TErrestrial RElations Observatory 55 weather satellite TIROS 55 Yinghuo 1 55 heaviest payloads 55 SpaceX Falcon 55 gamma ray observatory 55 Taepo Dong 55 Cosmodrome 55 Yury Gagarin 55 Block 5D 54 Mars Orbiter 54 gaseous planet 54 Epoxi 54 ESA XMM Newton 54 Comet Hartley 2 54 Multi Object Spectrometer 54 NFIRE 54 moons Phobos 54 extrasolar planet 54 Cartosat 54 Foton M3 54 Herschel Space Telescope 54 BepiColombo 54 reentry capsule 54 Fermi telescope 54 Saturn Cassini 54 Wilkinson Microwave Anisotropy Probe 54 S/# [001] 54 Infrared Astronomical Satellite 54 Charon Pluto 54 MUSES C 54 SCISAT 54 Relations Observatory STEREO 54 robotic rover 54 Lunar CRater Observation 54 Kepler 9c 54 Soviet cosmonauts 54 Express orbiter 54 INSAT 4CR 54 Galilean satellites 54 Lunar Reconnaissance Orbiter Camera 54 Nasa Mars Odyssey 54 NASAs 54 mission Chandrayaan 54 ultraviolet imaging spectrograph 54 Kuiper Belt Object 54 laser altimeter 54 spacecrafts 54 Epsilon Eridani 54 rover Spirit landed 54 lunar surface 54 particle detector 54 spacecraft Cassini 54 radar altimeter 54 twin Voyager spacecraft 54 Foton spacecraft 54 DigitalGlobe WorldView 54 rocket scientist Wernher 54 aboard SpaceX Falcon 54 astronaut Yuri Gagarin 54 robotic explorer 54 WISE infrared 54 orbiting Hubble Space Telescope 54 Rover MER 54 Sensing Satellite LCROSS 54 rovers Spirit 54 LORRI 54 HiRISE camera aboard 54 waning gibbous 54 infrared telescope 54 gamma ray spectrometer 54 Bug Nebula 54 Martian lander 53 spacecraft Chandrayaan 1 53 exoplanet hunter 53 NigeriaSat 53 Lunar Rover 53 Mars Odyssey spacecraft 53 Sojourner Rover 53 Curiosity rover 53 Interior Laboratory GRAIL 53 orbiting telescope 53 DISR 53 arcminutes 53 X ray observatory 53 Cassini Huygens spacecraft 53 rover Sojourner 53 Yuri Shargin 53 microlensing events 53 ESA Rosetta 53 Martian rover 53 NASA Wilkinson Microwave 53 aboard Skylab 53 robotic rovers 53 Plesetsk Cosmodrome 53 Wilkinson Microwave Probe 53 Helios 2B 53 NASA ICESat 53 LRO spacecraft 53 Nasa Mars Reconnaissance 53 SuitSat 53 orbiting Mars 53 Recovery Experiment SRE 53 interplanetary spacecraft 53 UDFy # 53 Venera 53 CBERS 53 EPOXI mission 53 APXS 53 onboard Chandrayaan 53 Rockot launch 53 inch Samuel Oschin 53 Kepler Mission 53 Ranging spacecraft 53 Field Planetary Camera 53 Herschel telescope 53 orbiting 53 twin Viking landers 53 Near Infrared Camera 53 transiting exoplanet 53 GOCE 53 Cosmic Microwave Background 53 unmanned spacecraft 53 entered lunar orbit 53 HD #b [002] 53 planets orbiting sun 53 orbiting gamma ray 53 TanDEM X 53 geosynchronous 53 Mars rovers Spirit 53 asteroid Steins 53 astronomical telescope 53 Comet Hale Bopp 53 orbital eccentricity 53 Cygnus X 53 Huygens lander 53 XMM Newton 53 Russian cosmonaut Yuri Gagarin 53 mu Arae 53 unmanned Shenzhou 53 Phobos 53 comet Boethin 53 Russian Soyuz Fregat 53 Venusian surface 53 rover Opportunity 53 Stardust spacecraft 53 KAGUYA 53 preset orbit 53 THEMIS Images 53 Planck satellite 53 moon Mab 53 lunar module Eagle 53 Cloud Aerosol Lidar 52 Galaxy Evolution 52 Deep Impact probe 52 Envisat satellite 52 Cancri e 52 NASA Voyager spacecraft 52 EPOXI spacecraft 52 planet Uranus 52 exo planets 52 Flyby spacecraft 52 radio occultation 52 Lunar Excursion Module 52 rover Spirit 52 Soyuz TMA #M 52 Mars moon Phobos 52 Quaoar 52 ICESat 52 asteroid Vesta 52 Meteosat 52 Mars Odyssey orbiter 52 lunar meteorites 52 THEMIS satellites 52 Lunik 52 RISAT 52 orbit GEO 52 ESA CryoSat 52 innermost planet 52 Cassini flyby 52 orbiting Saturn 52 Envisat satellites 52 RQ# 52 Martian rovers 52 Vostok spacecraft 52 neutron spectrometer 52 stationary lander 52 Gerard Kuiper 52 Comet #P/Churyumov-Gerasimenko 52 ESA Herschel 52 Spectrograph 52 Voyager probes 52 geo synchronous 52 Kuiper Belt object 52 Titan flybys 52 orbited 52 manned lunar landing 52 Ulysses spacecraft 52 Infrared Astronomical Satellite IRAS 52 Hale Bopp 52 Enceladus flybys 52 Chandrayan 52 STPSat 52 Nasa Kepler 52 FORMOSAT 52 Shoemaker Levy 52 NASA Kepler telescope 52 Mir Space Station 52 Huygens descent 52 Fomalhaut b 52 constellation Carina 52 Geo IK 52 Aqua satellite 52 MErcury Surface Space ENvironment 52 HARPS spectrograph 52 Shenzhou spacecraft 52 Proba 2 52 Upsilon Andromedae b 52 Martian orbit 52 mere fly bys 52 PSLV C 52 sunlike star 52 NPO Lavochkin 52 Sputniks 52 Commander Charlie Hobaugh 52 QQ# 52 Sinosat 52 orbited Jupiter 52 infrared observatory 52 Alexander Samokutyayev 52 aboard Soyuz TMA 52 parachutes malfunctioned 52 orbiting spacecraft 52 Resourcesat 2 52 LCROSS spacecraft 52 lander 51 astronomer Clyde Tombaugh 51 HiRISE camera 51 closest flyby 51 Chang'e 51 Mars landers 51 Zeta Ophiuchi 51 NEOSSat 51 Mars Polar Lander 51 comet Churyumov Gerasimenko 51 Shackleton crater 51 Space Launch Vehicle 51 moons orbiting 51 ESA Proba 51 exoplanets orbiting 51 ESA Huygens probe 51 NASA rovers 51 ESA GOCE 51 extrasolar planets 51 NASA Cassini 51 THEMIS spacecraft 51 GIOVE B 51 flyby spacecraft 51 geo synchronous transfer 51 OSTM Jason 2 51 named Simorgh 51 OGLE TR #b 51 Upsilon Andromedae 51 Cosmonauts Sergei Volkov 51 Keck telescope 51 Galilean moons 51 Cherenkov 51 Voyager Galileo 51 Epsilon Aurigae 51 Ultraviolet Imaging Spectrograph UVIS 51 Earthlike planet 51 Lunar Module 51 retrograde orbit 51 Kepler Telescope 51 galaxy M# [001] 51 Infrared Pathfinder Satellite 51 exo planet 51 Sergei Korolev 51 GSLV rockets 51 Optical Gravitational Lensing Experiment 51 Cosmic Background Explorer 51 AB Aurigae 51 Heliospheric Observatory SOHO 51 NASA Far Ultraviolet 51 Mössbauer 51 manned spaceships 51 moonlet 51 noctilucent clouds 51 planet Gliese #g 51 highly elliptical orbit 51 NASA Lunar Crater 51 Martian equator 51 Mars Opportunity rover 51 DEIMOS 51 exoplanets planets 51 spiral galaxy NGC 51 SPICAM 51 ROCSAT 2 51 unmanned spaceplane 51 Proba 51 ISS Expedition 51 Vinasat 51 orbiting observatory 51 lunar orbiter 51 SMOS mission 51 Hayabusa probe 51 comet McNaught 51 slender crescent 51 Opportunity rover 51 Comet Tempel 1 51 Chang'eI 51 spaceplane 51 Viking Orbiter 51 lunar orbit 51 imaging spectrometer 51 Ringed Planet 51 robotic probes 51 lunar landing 51 Investigation DIXI 51 ROSAT 51 MESSENGER spacecraft 51 Landsat satellites 51 Red Planet 51 Evolution Explorer 51 Rassvet 51 exoplanetary 51 Tycho Brahe 51 ESO Very Large Telescope 51 IBEX spacecraft 51 RXTE 51 thin crescent 51 NASA STEREO 51 Comet Lulin 51 distant supernovae 51 Kepler observatory 51 stellar occultations 51 COSMO SkyMed 51 Cassini flybys 51 Lunar Crater 51 Cassini Huygens Mission 51 orbiter lander 51 Shepherding Spacecraft 51 constellation Lacerta 51 Gliese #c 51 Aboard Atlantis 51 brightest supernova 51 Very Large Telescope 51 Asteroid Itokawa 51 Mars Lander 51 comet flyby 51 spacecraft orbiting 51 Hyakutake 51 spacecraft Shenzhou 51 Radiation Dose Monitor 51 photographing handrails antennas 51 Jupiter Ganymede 51 Samokutyayev 51 unmanned lunar 51 PSLV C6 51 lunar orbiters 51 Starfire Optical Range 51 BP Piscium 51 NASA Cassini spacecraft 51 DSCS III 51 COROT 7b 51 UK DMC2 51 Jovian moons 51 Mars Orbiter Camera 51 Planetary Camera 2 51 distant quasar 51 Molniya 50 Comet 9P/Tempel 1 50 SMOS 50 Tereshkova 50 ESA Planck 50 Advanced Spaceborne Thermal Emission 50 MG J# +# 50 Cancri 50 Optical Spectroscopic 50 Andrei Borisenko 50 Huygens mission 50 Characterization EPOCh 50 infrared telescopes 50 Paulo Nespoli 50 Deep Impact Extended 50 comet chaser 50 Earth asteroid Itokawa 50 Solar Dynamics Observatory 50 George Zamka 50 Yury Malenchenko 50 Hubble telescope 50 MARSIS 50 NASA rovers Spirit 50 Apophis asteroid 50 Philae lander 50 NASA Stardust NExT 50 Krimigis 50 orbit 50 Mission SRTM 50 Horizons spacecraft 50 Yuri Gagarin blasted 50 KamLAND 50 comet Shoemaker Levy 50 Martian meteorites 50 constellation Cassiopeia 50 Atlas IIAS 50 HD#b 50 GEochemistry 50 Mars orbiting spacecraft 50 Observatory SDO 50 Triangulum Galaxy 50 robotic explorers 50 SSETI Express 50 astronaut Owen Garriott 50 VIRTIS 50 Divine Vessel 50 Glonass satellites 50 microquasar 50 faint galaxies 50 Wolszczan 50 orbit insertion 50 ChemCam 50 constellation Cetus 50 THEMIS mission 50 LCROSS Lunar Crater Observation 50 lander rover 50 Earth orbiting satellites 50 Kosmos 3M rocket 50 SIM PlanetQuest 50 planets orbiting distant 50 moon Deimos 50 STEREO spacecraft 50 WASP #b 50 COROT satellite 50 astrometry 50 Mars Surveyor 50 Toutatis 50 comets orbiting 50 crewed spacecraft 50 twin rover Spirit 50 radioisotope thermoelectric generators 50 Planck telescope 50 C1XS 50 Anisotropy Probe WMAP 50 extrasolar 50 RESOURCESAT 50 orbited Earth 50 Explorer WISE 50 Yasny 50 Diviner 50 GLONASS satellites 50 Kaguya spacecraft 50 intrinsic brightness 50 Compton Gamma Ray 50 extrasolar planets orbiting 50 Skynet 5C 50 cosmonaut Yuri 50 lunar crust 50 LRO 50 XMM Newton satellite 50 COBE satellite 50 SIRAL 50 Imaging Spectrometer 50 Gusev crater 50 PSLV C# 50 Sputnik beeped 50 coronagraph 50 PSLV C# rocket 50 laboratory Skylab 50 Cygnus Lyra region 50 chief Vladimir Solovyov 50 comet Hale Bopp 50 Pancam 50 Heterodyne Instrument 50 eclipsing binary 50 Observatory STEREO 50 Uninhabited Aerial Vehicle 50 STIS 50 Descent Imager Spectral Radiometer 50 Voskhod 50 Oceansat 50 Kepler #b 50 Cosmic Origins Spectrograph COS 50 Soviet cosmonaut 50 Keck Interferometer 50 robotic landers 50 Mauna Kea Hawaii 50 impactor spacecraft 50 robotic lander 50 lunar rover 50 Taurus Littrow Valley 50 Neutral Mass Spectrometer 50 commander Zhai Zhigang 50 P/# A2 50 stellar occultation 50 Chilean Atacama Desert 50 cosmic ray detector 50 Zond 50 diazepam pharmacy 50 outermost planets 50 manned lunar missions 50 orbiter 50 Saturnian moon Titan 50 Kazakhstan Baikonur Cosmodrome 50 EPOXI 50 deorbiting 50 polar orbiting satellites 50 GOCE satellite 50 X ray spectrometer 50 CHIPSat 50 Diviner instrument 50 Keck telescopes 49 HARPS spectrograph attached 49 Rockot 49 Tropical Rainfall Measuring 49 orbiter Mars Odyssey 49 Ocean Salinity 49 Mars Color Imager 49 Gliese #e 49 WD5 49 Ranging MESSENGER spacecraft 49 spacecraft flyby 49 circular orbit 49 NASA Interstellar Boundary 49 Corot 7b 49 interstellar particles 49 Geminga 49 MISSE 49 GJ#b 49 X ray afterglow 49 Baikonur Kazakhstan 49 AMIE camera 49 Valentina Tereshkova 49 spiral galaxy Messier 49 #/#-minute climb 49 protoplanet 49 HAMSAT 49 Rover Opportunity 49 Hayabusa spacecraft 49 astrometric 49 Infrared Astronomy 49 ESA Cluster 49 spaceborne 49 transiting exoplanets 49 Sputnik satellite 49 Itokawa 49 radial velocity method 49 MSV MSAT 49 radial velocity 49 Comet Holmes 49 airglow 49 NEAR Shoemaker 49 Jupiter moons 49 Jupiter Icy Moons 49 Muchachos Observatory 49 Gravity Probe B 49 ringed planet 49 NASA rover Spirit 49 Mpc 49 Cassini orbiter 49 Yuri Lonchakov 49 Launch Vehicle 49 Cartosat 2A 49 Alexei Leonov 49 Commander Sergei Volkov 49 exosolar planets 49 manned spacecraft 49 Zolotukhin 49 Tunguska Event 49 Subaru telescope 49 Saturnian system 49 lunar soil 49 Soviet cosmonaut Yuri Gagarin 49 Giove B 49 Advanced Synthetic Aperture 49 Roman Romanenko 49 Youthsat 49 Anisotropy Probe 49 Dominique Cassini 49 Giovanni Schiaparelli 49 lunar craters 49 Cometary 49 Yury Lonchakov 49 EPOCh 49 UKIRT 49 DIXI 49 photometer 49 Global Surveyor spacecraft 49 Insat 3A 49 Moon Mineralogy Mapper 49 HUDF 49 radial velocity technique 49 FalconSat 49 Konstantin U. Chernenko 49 waxing crescent 49 SBIRS GEO 49 MESSENGER MErcury Surface 49 MN4 49 ESA Integral 49 GJ #b [001] 49 NASAâ € ™ 49 WISE spacecraft 49 reionization 49 Discovery STS 49 OGLE TR 49 laser altimetry 49 pulsating aurora 49 Earthlike planets 49 Cosmic Evolution 49 space module Tiangong 49 Air Force TacSat 49 Space Telescope 49 Shallow Subsurface Radar 49 lightweight synthetic aperture 49 Orbital Express 49 Skylab 49 orbiting telescopes 49 PSR J# 49 particle physics detector 49 unmanned lunar orbiter 49 Space ENvironment GEochemistry 49 Minotaur rocket 49 Beta Pictoris b 49 SSMEs 49 NASA Deep Impact 49 Helen Sharman 49 Shenzhou VI craft 49 Telesat Nimiq 49 Hubble Telescope 49 engineer Yury Lonchakov 49 RHESSI 49 MARSIS radar 49 landers 49 NASA Lunar Reconnaissance 49 inhabitable planets 49 moon 49 YES2 49 KBOs 49 GRB #B 49 Impact Probe MIP 49 KOMPSAT 49 Geosynchronous orbit 49 lunar module pilot 49 Taepodong 49 Pegasi b 49 satellites orbiting Earth 49 polarimetric 49 satellite RISAT 49 hydrazine thrusters 49 unmanned rover 49 Nikolai Budarin 49 Mars orbiter 49 gradiometer 49 Kuiper belt object 49 wheeled rover 49 Mojzsis 49 Mini Thermal Emission 49 GA6 49 Wally Schirra 49 exoplanets 49 NASA twin STEREO 49 lunar orbiter Chandrayaan 49 Glonass navigation satellites 49 Lunar Module Pilot 49 Io Europa Ganymede 49 redshift z = 49 Higgs bosons 49 # Apophis 49 NASA Kepler spacecraft 49 Unha 2 49 Space Shuttle STS 49 Samuel Oschin Telescope 49 HiRISE image 49 lunar orbiting spacecraft 49 ExoMars rover 49 Soyuz booster 49 SBSS satellite 49 Frank Borman 49 Lunar Roving Vehicle 49 ISRO Chandrayaan 49 lunar regolith 49 Kwangmyongsong 49 Lutetia 49 constellation Eridanus 49 planets Uranus 49 constellation Virgo 49 Koreasat 49 AKARI 49 Lunar Exploration 49 Jules Verne ATV 49 circumlunar 49 photometry 49 Gliese #d 49 Thermal Emission Spectrometer 48 Earth Asteroid 48 Reflection Radiometer 48 robot rovers 48 millisecond pulsars 48 Multi Object Spectrograph 48 TU# [002] 48 Soviet cosmonaut Aleksei Leonov 48 microlensing 48 Kuiper Belt Objects 48 Climate Experiment GRACE 48 Vostok 3KA 2 48 Thales Alenia 48 Foton M3 spacecraft 48 Mission TRMM satellite 48 twin rover Opportunity 48 Opportunity rovers 48 Lulin 48 Ring Nebula 48 Lunar Crater Observation 48 remote sensing satellites 48 Mercury Redstone 48 Comet Boethin 48 LRO LCROSS 48 Fregat upper stage 48 Solar Terrestrial Relations 48 Soyuz TMA capsule 48 visit http:/saturn.jpl.nasa.gov 48 Delta Cephei 48 Saturn Enceladus 48 astronaut Eugene Cernan 48 Moderate Resolution Imaging 48 #/#-hour parachute 48 Nasa Deep Impact 48 Halley comet 48 Saturn outermost moon 48 SN #gy 48 SAR Lupe 48 YU# 48 Gravitational lensing 48 Mossbauer spectrometer 48 ESO telescopes 48 moonwalkers 48 Shenzhou VI spacecraft 48 CoRoT 9b 48 Proxima Centauri 48 docking compartment 48 Skripochka 48 jovian 48 whiz harmlessly 48 SELENE 48 Priz AS 48 transiting planet 48 Nimiq 48 spacecraft Hayabusa 48 Imaging Spectroradiometer MODIS instrument 48 orbital solitude 48 Huygens Probe 48 orbiting Hubble telescope 48 Mercury flyby 48 Tropospheric Emission Spectrometer 48 detect gravitational waves 48 Beta Pictoris 48 Igor Mitrofanov 48 unmanned Progress 48 Discovery undocked 48 millisecond pulsar 48 inch refractor telescope 48 Opportunity Mars rover 48 O OREOS 48 geosynchronous GEO 48 MTSAT 48 Super Kamiokande 48 inch refractor 48 NASA Fermi Gamma 48 discover Fomalhaut 48 TrES 4 48 Lunar Orbiter Laser Altimeter 48 Galileo satellites 48 Hinode spacecraft 48 exoplanet orbiting 48 Pilot George Zamka 48 orbital velocity 48 Spaceguard Survey 48 microscopic imager 48 Shenzhou IV 48 spectrographic 48 polar orbit 48 Pegasi 48 geo stationary orbit 48 HL Tau 48 Martian terrain 48 Russian crewmate Yuri 48 Dragon capsule 48 waxing gibbous 48 Martian arctic 48 cosmonauts Sergei Volkov 48 Usachev 48 Sensing Satellite 48 X ray telescope 48 Russian cosmonaut Alexander Kaleri 48 GQ Lupi 48 meteoroid 48 GJ #b [002] 48 Predator drone flies 48 Foing 48 supernova SN 48 Clementine spacecraft 48 moon Phobos 48 APEX telescope 48 planet Gliese 48 Colin Pillinger Beagle 48 STSS Demo 48 solar radii 48 arcsecond 48 Budarin 48 Ocean Surface Topography 48 comet nucleus 48 Werner von Braun 48 nanosatellites 48 Edwin Aldrin 48 ESO PR 48 luminous galaxies 48 Kazakhstan steppes 48 Comet Machholz 48 TerraSAR X 48 Konstantin Tsiolkovsky 48 Spacecraft 48 neutral mass spectrometer 48 enters lunar orbit 48 #P/Churyumov-Gerasimenko 48 Spacelab 48 lunar module 48 PSLV C7 48 maneuvering thrusters 48 Stephan Quintet 48 X ray telescopes 48 electric ion propulsion 48 Radarsat 48 NICMOS 48 astronomer Tycho Brahe 48 Gagarin flight 48 Dnepr rocket 48 TIROS 48 Fermi Gamma ray 48 CoRoT 7b 48 Messenger spacecraft 48 ATV Johannes Kepler 48 Planetary Fourier Spectrometer PFS 48 cosmic cannibal 48 SINFONI 48 Titan smoggy 48 interstellar dust particles 48 icy moons 48 Shackleton Crater 48 Plesetsk 48 Virgo Cluster 48 celestial observations 48 Total Ozone Mapping 48 IKONOS 48 Vehicle PSLV C9 48 magnetic spectrometer 48 planemos 48 particle smasher 48 reconnaissance satellites 48 decorated cosmonaut 48 unpiloted 48 RS Ophiuchi 48 COMSATBw 48 probe Huygens 48 Observatoire de Paris 48 MetOp 48 constellation Aquarius 48 Highly Adaptable Satellite 48 cosmonaut Pavel Popovich 48 THEMIS Image 48 Antenna LISA 48 Cassini 48 manned spacecraft Shenzhou VI 48 manned lunar 48 extraterrestrial civilization 48 Mars rovers 48 Lagoon Nebula 48 Gliese #g 48 Spaceguard 48 Globalstar satellites 48 circumlunar satellite 48 KSLV 1 48 Foton M2 48 Permanent Multipurpose Module PMM 48 Alexander Kaleri 48 six wheeled rover 48 DubaiSat 48 smallest exoplanets