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(Click for frequent words.) 64 refurbished Hubble Space 63 NASA ESA Hubble 63 NASA Cassini spacecraft 63 Hubble Space Telescope 61 Spitzer Space Telescope 60 Hubble Space Telescope HST 59 ray Space Telescope 59 Hubble 58 Explorer WISE 57 Hubble telescope 56 Cassini Huygens spacecraft 56 Great Observatories 56 NASA Mars Reconnaissance 56 Solar TErrestrial RElations Observatory 56 NASA Great Observatories 56 Planetary Camera 2 56 Ulysses spacecraft 56 HiRISE camera 55 orbiting Hubble Space Telescope 55 Solar Dynamics Observatory 55 Galaxy Evolution 55 Comet Hartley 2 55 Orbiter LRO 55 Saturn moon Enceladus 55 ESA Rosetta 55 AKARI 55 WISE infrared 55 Hubble Telescope 55 visit http:/saturn.jpl.nasa.gov 55 NASA Lunar Reconnaissance 55 NASA Chandra 54 Fermi telescope 54 Herschel Space 54 Cassini spacecraft 54 NASA Stardust spacecraft 54 Nasa Kepler 54 rocky extrasolar planet 54 gamma ray observatory 54 Imaging Spectroradiometer MODIS instrument 54 NASA Kepler 54 Wilkinson Microwave Anisotropy Probe 54 NASA Opportunity rover 54 Orbiter MRO 54 High Resolution Imaging 53 Saturn Cassini 53 spectroscopic observations 53 Epsilon Aurigae 53 Infrared Array Camera 53 orbiting observatory 53 NASA Interstellar Boundary 53 Galileo spacecraft 53 field Infrared Survey 53 Moderate Resolution Imaging 53 Mercury flyby 53 orbiting Hubble telescope 53 RXTE 53 Sagittarius Window Eclipsing 53 NASA STEREO 53 Opportunity rover 53 WISE telescope 53 EPOXI mission 53 NASA Fermi Gamma 52 orbiting gamma ray 52 Space Telescope 52 Heliospheric Observatory SOHO 52 NEOWISE 52 spiral galaxy NGC 52 Comet Hartley 52 STEREO spacecraft 52 WMAP satellite 52 Butterfly Nebula 52 XMM Newton 52 Keck Interferometer 52 ESA XMM Newton 52 IBEX spacecraft 52 Mars Reconnaissance Orbiter MRO 52 Lunar Reconnaissance Orbiter LRO 52 planet Uranus 52 ESO PR 52 Nasa spacecraft 52 Kepler Space Telescope 52 Hubble Space telescope 52 Hubble observations 52 spacecraft orbiting 52 Planck satellite 51 NASA EPOXI mission 51 Fomalhaut b 51 Mars Orbiter 51 Surveys ACS 51 GALEX 51 NASA Spirit rover 51 SDSS II 51 Moderate Resolution 51 innermost planet 51 ESA Integral 51 Extrasolar Planet Search 51 asteroid Lutetia 51 Viking Orbiter 51 NASA Voyager spacecraft 51 comet nucleus 51 Cassini flyby 51 comet Hartley 2 51 HiRISE camera aboard 51 Sojourner Rover 51 CoRoT satellite 51 WISE spacecraft 51 ESA ASI 51 Envisat satellite 51 orbiting spacecraft 51 Lunar Orbiter 51 SOHO spacecraft 51 NASA Deep Impact 51 Mars Color Imager 50 planetary Transits 50 #P/Churyumov-Gerasimenko 50 NASA Cassini 50 X ray Observatory 50 NASA Aqua 50 ESA Mars 50 THEMIS satellites 50 infrared observatory 50 orbiting Chandra 50 orbiting telescope 50 Planck observatory 50 SIRTF 50 spacecraft Cassini 50 orbiting Saturn 50 Kepler Mission 50 OMEGA instrument 50 Observatory SDO 50 Mars Reconnaissance Orbiter 50 PASADENA Calif. NASA 50 SINFONI 50 Near Infrared Camera 50 Tropical Rainfall Measuring 50 NASA Stratospheric Observatory 50 NASA MESSENGER spacecraft 50 TRMM satellite 50 Deep Impact comet 50 MESSENGER spacecraft 50 asteroid Vesta 50 comet Tempel 1 50 ROSAT 50 Convection Rotation 50 smallest exoplanets 50 orbiting observatories 50 Evolution Explorer 50 Solar Terrestrial Relations 50 NuSTAR 50 interplanetary spacecraft 50 Nasa Mars Reconnaissance 50 NASA Kepler spacecraft 50 Herschel Space Telescope 50 ESA Planck 49 Quadrantid meteor shower 49 Deep Impact mission 49 TRMM 49 Hubble Space 49 Cassini Equinox 49 Burst Alert 49 moon Io 49 Veil Nebula 49 X ray observatory 49 comet Lulin 49 LRO spacecraft 49 slender crescent 49 exalted Hubble Space 49 Aqua satellite 49 Enceladus flybys 49 Infrared Pathfinder Satellite 49 Field Planetary Camera 49 PASADENA Calif. Astronomers 49 Deep Field HUDF 49 exoplanets planets 49 THEMIS spacecraft 49 Compact Reconnaissance Imaging Spectrometer 49 LORRI 49 Stardust spacecraft 49 CloudSat 49 #P/Holmes 49 extrasolar planet 49 Shuttle Radar Topography 49 spacecraft flyby 49 Geminid meteor showers 49 Moderate Imaging Spectroradiometer 49 GREENBELT Md. NASA 49 Lunar CRater Observation 49 smallest exoplanet 49 earthshine 49 ESO telescopes 49 Fermi Gamma ray 49 Voyager spacecraft 49 hexagonal mirrors 49 Chandra Observatory 49 Pancam 49 moon Phobos 49 WFC3 49 Cosmic Origins Spectrograph COS 49 Solar Dynamics 49 Sensing Satellite LCROSS 49 Imaging Spectroradiometer MODIS 49 Rover Opportunity 49 Reflection Radiometer 49 NASA THEMIS 49 NASA Lunar Crater 49 Hinode 48 Field Infrared Survey 48 BLG #Lb 48 Multi Object Spectrometer 48 Wilkinson Microwave Probe 48 rover Opportunity 48 Multi Object Spectrograph 48 Harvard exoplanet hunter 48 star Beta Pictoris 48 Corot 7b 48 http:/www.nasa.gov/cassini 48 NASAs 48 Reconnaissance Orbiter 48 Interior Laboratory GRAIL 48 VIRTIS 48 origins spectrograph 48 orbiting Kepler telescope 48 Samuel Oschin Telescope 48 Comet Lulin 48 infrared telescopes 48 Planck telescope 48 Cassini Huygens 48 exo planet 48 unmanned probes 48 GLAST telescope 48 Deep Impact eXtended Investigation 48 occultations 48 Cassini Huygens Mission 48 planets orbiting distant 48 Ranging spacecraft 48 NASA LCROSS 48 Comet Halley 48 RS Ophiuchi 48 flyby 48 Comet Machholz 48 ESO VLT 48 Rosetta spacecraft 48 Using ESO Very 48 Mars rovers Spirit 48 NASA 48 Anisotropy Probe WMAP 48 Submillimeter Array 48 Mars moon Phobos 48 Hubble Servicing 48 Bug Nebula 48 NASA Far Ultraviolet 48 Comet Holmes 48 zodiacal light 48 KAGUYA 48 Infrared Astronomy SOFIA 48 Infrared Astronomy 48 OGLE TR #b 48 Dynamics Observatory 48 Spitzer Space Telescopes 48 planets orbiting stars 48 robotic explorer 48 cometary dust 48 ESO Paranal Observatory 48 Hubble Ultra 48 lunar topography 48 APXS 48 coronal loops 48 Mars CRISM 48 distant supernovae 48 Mars orbiting spacecraft 48 shadowy craters 48 Sounder AIRS instrument 48 Pluto Charon 48 infrared satellite imagery 48 microlensing events 48 Orion Nebula 47 Composite Infrared Spectrometer 47 VISTA telescope 47 ESO Very Large Telescope 47 Comet Encke 47 Zeta Ophiuchi 47 galaxy M# [001] 47 Hubble astronomers 47 NASA Lunar Prospector 47 spectroscopic measurements 47 Advanced Spaceborne Thermal Emission 47 NASA Solar Terrestrial 47 STEREO 47 Laser Interferometer Gravitational Wave 47 Compton Gamma Ray 47 New Horizons spacecraft 47 UKIRT 47 binary quasar 47 telescopes astronomers 47 MESSENGER 47 exoplanetary 47 Stephan Quintet 47 Field Imager 47 Context Camera 47 Relations Observatory STEREO 47 Mars Odyssey spacecraft 47 filamentary structure 47 Space Infrared Telescope 47 twin STEREO spacecraft 47 LCROSS mission 47 SDSS III 47 Orbiting Carbon Observatory OCO 47 outermost planets 47 astronomers 47 rovers Spirit 47 rover Spirit 47 DISR 47 HiRISE image 47 N. Rathnasree 47 GOCE satellite 47 Jupiter Uranus 47 Deep Impact probe 47 Mars Orbiter Camera 47 Helix nebula 47 GRB #B 47 Amateur astronomers 47 Upsilon Andromedae 47 HRSC 47 Far Ultraviolet Spectroscopic Explorer 47 Fermi Telescope 47 Interferometer VLTI 47 Comet Tempel 1 47 OSIRIS 47 Saturn rings 47 star Gliese 47 NASA twin STEREO 47 Infrared Mapping Spectrometer VIMS 47 DIXI 47 STEREO mission 47 moons circling 47 Comet 9P/Tempel 1 47 inch Samuel Oschin 47 Carina Nebula 47 multiwavelength 47 ringed planet 47 Kepler spacecraft 47 VLTI 47 extrasolar 47 Cosmic Origins Spectrograph 47 Solar Orbiter 47 TerraSAR X satellite 47 Landsat satellite 47 comet McNaught 47 Astronomers 47 Mission TRMM satellite 47 noctilucent 47 Kepler telescope 47 Deep Impact flyby spacecraft 47 XMM Newton X ray 47 moon Mab 47 Chandra X ray 47 DigitalGlobe WorldView 47 transiting exoplanet 47 Keck telescopes 47 CloudSat radar 47 astrophysical phenomena 47 Envisat Advanced Synthetic Aperture 47 X ray afterglow 47 Viking orbiters 47 NASA Wilkinson Microwave 47 Adam Riess 47 CALIPSO 47 HM Cancri 47 Saturn moons 47 spatially resolved 46 GigaGalaxy Zoom 46 Greenbelt Md. manages 46 outer corona 46 supercomputer simulations 46 Saturn magnetosphere 46 Planetary Fourier Spectrometer PFS 46 celestial sphere 46 Cat Paw Nebula 46 barred spiral galaxy 46 heavily cratered 46 Titan flybys 46 TNOs 46 Mission SRTM 46 STIS 46 Mars Global Surveyor 46 Nasa Mars Odyssey 46 annual Perseid meteor 46 extrasolar planets orbiting 46 X ray telescopes 46 spiral galaxy Messier 46 Saturnian moon Titan 46 SN #A 46 Rosette Nebula 46 Telescope BAT 46 flyby spacecraft 46 comet Wild 46 Saturnian 46 Grammier 46 GOES O 46 ESA SMART 46 Herschel telescope 46 thrilling stargazers 46 planetary nebulas 46 astronomical telescope 46 stellar occultations 46 Diviner instrument 46 periodic dimming 46 ESA Envisat satellite 46 comet particles 46 SIM PlanetQuest 46 Climate Experiment GRACE 46 MODIS instrument 46 Huygens mission 46 NASA Cosmic Background 46 SeaWiFS 46 Cassini 46 Comet Boethin 46 asteroids Ceres 46 THEMIS Images 46 AIRS instrument 46 Foton spacecraft 46 Advanced Camera 46 shadowed craters 46 galaxy cluster 46 Envisat Medium Resolution 46 Spectroscopic Explorer 46 http:/saturn.jpl.nasa.gov 46 Orionid meteors 46 Chilean Atacama Desert 46 Kepler Telescope 46 Rosetta comet chaser 46 Servicing Mission 46 Cometary 46 brightest supernova 46 Planck spacecraft 46 Beta Pictoris 46 Planetary Transits 46 Mars orbiter 46 Eta Aquarid meteor shower 46 Mars Phobos 46 BBSNews #-#-# NASA 46 HUDF 46 lunar craters 46 Infrared imagery 46 V# Mon 46 Ring Nebula 46 ship thermal shielding 46 Orionids 46 Resolution Stereo Camera 46 protostars 46 XMM Newton satellite 46 COROT 46 Hubble gyroscopes 46 ESA Herschel 46 orbiting Cassini spacecraft 46 SBSS satellite 46 WMAP 46 twin Voyager spacecraft 46 Orion nebula 45 cometary 45 Leonid meteor showers 45 lunar crust 45 Andromeda galaxy 45 Messenger spacecraft 45 cosmic phenomena 45 planet Gliese #g 45 Kepler observatory 45 magnetospheric 45 NASA twin rovers 45 Jupiter Icy Moons 45 Cosmic Evolution 45 laser altimeter 45 NASA rover Opportunity 45 trans Neptunian objects 45 NOAA GOES 45 Elenin 45 NASA Orbiting Carbon 45 NASAâ € ™ 45 Envisat satellites 45 Deep Impact spacecraft 45 comet flyby 45 Lagoon Nebula 45 Spectroradiometer MODIS 45 elliptical galaxy NGC 45 colliding galaxies 45 Landsat satellites 45 Spitzer infrared spectrograph 45 Coma Cluster 45 Flyby spacecraft 45 SMOS mission 45 distant galaxy 45 Reflection Radiometer ASTER 45 Cygnus Lyra region 45 Shuttle Atlantis blasts 45 Stratospheric Observatory 45 solar corona 45 Quadrantids 45 Astronomy buffs 45 spectroscopic 45 Uranus Neptune 45 NASA COBE satellite 45 cryo EM 45 Giovanni Cassini 45 Descent Imager Spectral Radiometer 45 Charon Pluto 45 Boethin 45 polar craters 45 Cloud Aerosol Lidar 45 Atlantis robotic arm 45 NASA WMAP 45 constellation Centaurus 45 Global Surveyor 45 ESA Huygens 45 martian landscape 45 RHESSI 45 MARSIS 45 NASA Mars rover 45 wispy cirrus clouds 45 icy comets 45 lobate scarps 45 icy moon Enceladus 45 planetary geologists 45 Endeavour docked 45 proto galaxies 45 exoplanets orbiting 45 Comet NEAT 45 Helix Nebula 45 Robotic Arm Camera 45 Titan flyby 45 Mars Pathfinder lander 45 GJ #b [001] 45 NASA ICESat 45 Institute STScI 45 Express orbiter 45 robot rovers 45 Saturn outermost moon 45 orbital solitude 45 aboard ESA Envisat 45 Heliospheric Observatory 45 THEMIS 45 WM Keck Observatory 45 Space Telescope GLAST 45 gaseous planet 45 Ultraviolet Imaging Spectrograph 45 asteroid Steins 45 irregularly shaped asteroid 45 Nasa 45 Comet #P/Churyumov-Gerasimenko 45 NASA Mars Orbiter 45 G#.# +#.# 45 constellation Carina 45 thin crescent 45 hydroxyl molecules 45 celestial phenomena 45 robotic spacecraft 45 Kuiper Belt Object 45 EPOXI 45 microshutters 45 NASA rover Spirit 45 MODIS 45 retroreflector 45 Hubbles 45 Orionid meteor shower 45 MERIS 45 Mars rover Opportunity 45 gravitational lens 45 Saturn Enceladus 45 outer planets 45 Very Large Telescope 45 waxing gibbous moon 45 amateur skywatchers 45 Imaging Spectrometer MERIS 45 orbiting telescopes 45 Anisotropy Probe 45 millisecond pulsars 44 Crab Nebula 44 binary asteroid 44 Thermal Emission Imaging 44 muon neutrino 44 LADEE 44 Kim Shiflett 44 Ultraviolet Imaging Spectrograph UVIS 44 Chang'eI 44 Cassini orbiter 44 infrared telescope 44 luminous galaxies 44 NASA Atmospheric Infrared 44 interstellar dust grains 44 JWST 44 comet Hale Bopp 44 moon Charon 44 Science Experiment HiRISE 44 super perigee moon 44 MicroFUN 44 Tarantula Nebula 44 Omega Centauri 44 Webb Telescope 44 Imaging Spectrograph 44 Churyumov Gerasimenko 44 HIRES spectrometer 44 imaging spectrometer 44 Digitized Sky Survey 44 Pan STARRS 44 MGS Mars Orbiter Camera 44 Red Rectangle 44 Mini TES 44 distant supernovas 44 celestial observations 44 NASA Mars Odyssey 44 Cosmic Background Explorer 44 Saturn moon Mimas 44 NASA rovers 44 GOES satellites 44 Hinode spacecraft 44 Geminid shower 44 Gravity Probe B 44 Taurus Littrow Valley 44 cosmic cannibal 44 SpaceWeather.com 44 QuikSCAT 44 Aram Chaos 44 Space Station Status 44 X ray telescope 44 icy moons 44 discover Fomalhaut 44 Orion constellation 44 comet 44 Interstellar Boundary Explorer 44 interstellar grains 44 moon permanently shadowed 44 Cassini spacecraft orbiting 44 mineral olivine 44 Mario Livio 44 Aurigid 44 Cosmonaut Yuri Gagarin 44 Saturnian moon 44 infrared wavelengths 44 NASA Stardust NExT 44 distant quasars 44 Observatory STEREO 44 STEREO satellites 44 ESA ERS 44 TanDEM X 44 dusty disks 44 galaxy NGC 44 MErcury Surface Space ENvironment 44 Gliese #e 44 Tempel 1 44 lensing galaxy 44 adaptive optics 44 robotic rover Spirit 44 Geminga 44 Ringed Planet 44 Space Telescope Imaging Spectrograph 44 NASA Tropical Rainfall 44 amateur astronomers peering 44 MG J# +# 44 BepiColombo 44 Imaging Spectroradiometer 44 Galilean moons 44 Nuclear Spectroscopic Telescope Array 44 SMOS 44 Hayabusa probe 44 asteroids orbiting 44 Advanced Synthetic Aperture 44 KODAK CCD Image Sensors 44 Saturn moons Enceladus 44 cryo electron microscope 44 GROND 44 Lunar Reconnaissance Orbiter Camera 44 orbiting 44 celestial fireworks 44 Rosetta orbiter 44 comets asteroids 44 NASA Lunar CRater 44 MTSAT 1R 44 Cassini flybys 44 Venusian surface 44 exosphere 44 Viking landers 44 exo planets 44 NASA Kepler telescope 44 WD5 44 solar prominences 44 Eagle Nebula 44 spaceweather.com 44 NASA MODIS satellite 44 Martian rovers 44 Dean Pesnell 44 telescope 44 fainter objects 44 Clementine spacecraft 44 asteroid Eros 44 UCO Lick 44 Nasa Deep Impact 44 MetOp satellite 44 Jean Luc Margot 44 Lyrid meteor shower 44 Optical Spectroscopic 44 P/# A2 44 galaxy clusters 44 Explorer IBEX 44 sunlike star 44 Resolution Imaging 44 MODIS Rapid Response 44 interstellar dust samples 44 ESA Envisat 44 Infrared Astronomical Satellite 44 interacting galaxies 44 Infrared Thermal Imaging Spectrometer 44 aurorae 44 cluster NGC 44 planets orbits 44 distant quasar 44 waxing crescent 44 Stardust capsule 44 moon Enceladus 44 Viking Lander 44 NASA CloudSat 44 NFIRE satellite 44 exhaust plume 44 circumstellar disks 44 Atmospheric Infrared Sounder AIRS 44 Rosetta lander 44 Lunar Prospector 44 gamma ray burst GRB 44 ESA Huygens probe 44 GEochemistry 44 Hanny Voorwerp 44 TerraServer USA 44 Earth magnetosphere 44 BP Psc 44 planetary nebula 44 Extragalactic 44 GPS IIR M 44 Program DMSP 44 Proba 2 43 Saturn moon 43 Arches Cluster 43 polar stratospheric 43 Stardust NExT 43 Deep Impact craft 43 WFPC2 43 Mössbauer 43 Antennae Galaxies 43 spacecraft 43 Haehnelt 43 CAPE CANAVERAL Astronauts 43 jovian 43 ALMA antennas 43 Gamma ray Large 43 Atacama Large Millimeter submillimeter 43 Jupiter Icy Moons Orbiter 43 Martian dust 43 LROC 43 astronomer Clyde Tombaugh 43 Keck Telescope 43 GRACE satellites 43 Earthlike planets 43 orbit insertion 43 Martian landscape 43 TRMM Microwave Imager TMI 43 Kuiper belt objects 43 Pleiades cluster 43 exoplanets planets outside 43 constellations Cygnus 43 Martian craters 43 Magnetic Imager HMI 43 e MERLIN 43 Foton M3 43 interferogram 43 spectroscopically 43 distant galaxy clusters 43 Epsilon Eridani 43 martian surface 43 HD#b 43 NASA Cassini orbiter 43 microscopic imager 43 hubble 43 retrograde orbit 43 Apollo missions 43 Field Imager WFI 43 Mars Opportunity rover 43 infrared spectrograph 43 Hubble servicing 43 mu Arae 43 BBSNews Photos 43 astrometric 43 Mars Odyssey orbiter 43 Heterodyne Instrument 43 extragalactic 43 dexterous robot 43 comet tail 43 Michael A'Hearn 43 waning gibbous 43 star Spica 43 comets orbiting 43 Martian crater 43 Subaru telescope 43 Palomar Observatory 43 Curiosity rover 43 Hubble orbits 43 Steins asteroid 43 CoRoT 9b 43 hyper spectral 43 Landsat 43 Discovery undocks 43 Hayabusa spacecraft 43 NASA rovers Spirit 43 Wolszczan 43 Cosmic Microwave Background CMB 43 IceCube 43 director Chuck Dovale 43 orbited Jupiter 43 GJ#b 43 Ed Weiler associate 43 extrasolar planets 43 Galilean satellites 43 FORCAST 43 Phoenix lander 43 GRB #A 43 flybys 43 SN #gy 43 EPOCh 43 faraway quasars 43 MARSIS radar 43 Nikku Madhusudhan 43 galaxy redshift 43 STSS Demonstration 43 AERONET 43 Spectroradiometer 43 Moon Mineralogy Mapper 43 Hubble Space Telescopes 43 eclipsing binary 43 penetrating radar 43 EPOXI spacecraft 43 NEAR Shoemaker 43 Mission Directorates 43 distant galaxies 43 interstellar cloud 43 KH #D 43 bedrock outcropping 43 gamma ray telescope 43 Lunar Crater Observation 43 Sojourner rover 43 Itokawa asteroid 43 Bok globules 43 AMIE camera 43 situ measurements 43 comet Churyumov Gerasimenko 43 comet chaser 43 neutron spectrometer 43 weather satellite TIROS 43 microlensing 43 permanently shadowed craters 43 HESS telescopes 43 Mimas 43 lunar orbits 43 galactic clusters 43 astrometry 43 Suzaku X ray 43 planets orbiting sun 43 galaxy formation 43 AU Mic 43 moon Titan 43 Envisat 43 Gamma ray burst 43 galaxies collide 43 protoplanetary 43 HiRISE 43 Axial Replacement 43 moons orbiting 43 OGLE 43 spectrograph 43 planets Uranus 43 GOCE 43 gravitational lenses 43 JAXA 43 Kailash Sahu 43 comet Boethin 43 GPS Block IIF 43 Slooh 43 Valles Marineris 43 infrared imagery 43 waxing gibbous 43 SEGUE 43 THEMIS mission 43 faraway galaxies 43 Array ALMA 43 GLAST 43 orbiting Mars 43 Bullet Cluster 43 Southern Observatory ESO 43 HiRISE images 43 copper impactor 43 star IM Pegasi 43 Kuiper Belt Objects 43 spacewalk Lopez Alegria 43 Swift Ultraviolet Optical 43 Kuiper belt object 43 lunar explorer 43 Uranus Jupiter 43 X ray observatories 43 Martian terrain 43 Keck telescope 43 Ultraviolet Optical Telescope 43 Gusev crater 43 lunar landers 43 Martian gullies 42 Ed Weiler NASA 42 ExoMars Trace Gas 42 Perseid meteor 42 inhabitable planets 42 Atlantis undocks 42 Manned missions 42 polarimetry 42 polar orbiting satellites 42 gigapixel camera 42 DMSP satellites 42 interstellar dust 42 infrared imager 42 Jupiter Saturn 42 Mission TRMM 42 Son Nghiem 42 constellation Aquarius 42 Comet #P 42 Kepler #b 42 THEMIS probes 42 Ocean Salinity 42 orbiter Mars Odyssey 42 Hipparcos 42 astronomical observations 42 Delta Cephei 42 Saturnian system 42 George Djorgovski 42 UVOT 42 SN #C 42 intracluster 42 brightest meteors 42 UVIS 42 Substorms 42 LightSail 1 42 Ralph McNutt 42 Exoplanet 42 SN#A 42 type Ia supernovae 42 Veracode patented 42 Titan Saturn 42 ultraviolet wavelengths 42 Cosmic Microwave Background 42 TerraSAR X 42 RS Oph 42 Phoenix Mars Lander 42 NASA MESSENGER 42 elliptical galaxies 42 stellar occultation 42 airglow 42 LCROSS 42 gamma ray spectrometer 42 Area Telescope LAT 42 gamma ray burst 42 astrophysical objects 42 Saturn equinox 42 Subaru Telescope 42 orbiter robotic arm 42 Saturn moon Iapetus 42 Hubble Near Infrared 42 Jupiter flyby 42 planetary transits 42 SKY WATCH 42 SPICAM 42 Preston Burch 42 gamma ray telescopes 42 Jenniskens 42 JIMO 42 EVLA 42 DART spacecraft 42 Kepler 9c 42 IP Resistivity 42 pointings 42 Distant galaxies 42 nebulae 42 Starfire Optical Range 42 nebular 42 Aurigid meteor shower 42 shuttle Endeavour astronauts 42 NASA via BBSNews 42 submillimetre 42 moons orbiting Pluto 42 Global Surveyor spacecraft 42 Adaptive optics 42 Canadian Julie Payette 42 Dalcanton 42 gaseous hydrogen leak 42 Eta Aquarids 42 Konacki 42 transiting planets 42 George Zamka 42 thermal infrared