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(Click for frequent words.) 72 Epoxi 70 Extrasolar Planet Observations 70 Characterization EPOCh 67 EPOXI mission 65 Lunar Reconnaissance Orbiter LRO 64 DIXI 62 SIRTF 62 Comet Hartley 2 62 Stardust NExT 61 Deep Impact eXtended Investigation 60 Deep Impact Extended 60 Kepler Mission 60 EPOCh 60 Solar TErrestrial RElations Observatory 60 Extrasolar Planet Observation 60 THEMIS 60 Cassini Huygens 59 Orbiter LRO 59 GLAST 59 OSIRIS REx 59 Stardust spacecraft 59 NASA STEREO 59 Kepler spacecraft 59 STEREO mission 59 IceCube 59 NEOWISE 59 IBEX spacecraft 59 ESA Rosetta 59 Comet Hartley 58 flyby spacecraft 58 extrasolar 58 Huygens mission 58 Interior Laboratory GRAIL 58 exoplanetary 58 LCROSS 58 Lunar Reconnaissance Orbiter 58 Wilkinson Microwave Anisotropy Probe 58 Galileo spacecraft 58 Churyumov Gerasimenko 58 Kepler Space Telescope 57 MESSENGER 57 MARSIS 57 cometary 57 Rosetta spacecraft 57 Investigation DIXI 57 COROT 57 Planck satellite 57 CALIPSO 57 CoRoT satellite 57 DISR 57 XMM Newton 57 Cassini Equinox 57 Comet Boethin 57 LRO 57 Pluto Charon 57 THEMIS satellites 57 NASA Goddard 57 Cassini 57 Solar Orbiter 57 HiRISE 57 planemos 57 RXTE 56 CloudSat 56 HD#b 56 NASA EPOXI mission 56 exosolar planets 56 ICESat 56 NASA LCROSS 56 NASA THEMIS 56 GRB #B 56 Lunar Crater Observation 56 LCROSS mission 56 spacecraft Cassini 56 Galaxy Evolution 56 GALEX 56 VIRTIS 56 LADEE 56 LORRI 56 NASA Cosmic Background 56 NASAs 56 NASA Cassini spacecraft 56 Jupiter magnetosphere 55 NuSTAR 55 APXS 55 UVOT 55 TanDEM X 55 Relations Observatory STEREO 55 comet nucleus 55 Comet #P/Churyumov-Gerasimenko 55 planetary Transits 55 Kepler telescope 55 asteroid Vesta 55 STEREO spacecraft 55 Nasa spacecraft 55 Fomalhaut b 55 airglow 55 Ulysses spacecraft 55 Convection Rotation 55 exoplanets 55 X ray observatory 55 NASA Deep Impact 55 gamma ray burst 55 extrasolar planet 55 comets asteroids 55 binary asteroid 55 Voyager spacecraft 55 Hubble orbits 55 orbiting observatories 55 planetary missions 55 NASA Kepler 55 MINOS 55 Rosetta orbiter 55 gamma ray spectrometer 55 EPOXI spacecraft 55 extrasolar planets 55 Deep Impact spacecraft 55 Mercury flyby 55 SPICAM 55 Sensing Satellite LCROSS 55 NASA Cassini 55 Great Observatories 54 O OREOS 54 BepiColombo 54 orbiting 54 Cassini Huygens spacecraft 54 WMAP satellite 54 Climate Experiment GRACE 54 OGLE TR #b 54 SIM PlanetQuest 54 stellar occultations 54 Viking Lander 54 highly elliptical orbit 54 comet Boethin 54 HiRISE image 54 Deep Impact comet 54 SOHO spacecraft 54 Deep Impact mission 54 Krimigis 54 Hubble observations 54 NLSI 54 Interstellar Boundary Explorer 54 GJ #b [001] 54 SMOS 54 LRO spacecraft 54 New Horizons spacecraft 54 comet Hartley 2 54 infrared observatory 54 Pluto Kuiper Belt 54 Ocean Salinity SMOS 54 Spacewatch 54 gaseous planet 54 CRISM 54 Ranging spacecraft 54 spacecraft 54 Mars Reconnaissance Orbiter 54 twin Voyager spacecraft 54 radial velocity 54 HD #b [002] 54 Saturn Cassini 54 NASA Interstellar Boundary 54 Corot 7b 54 Pancam 54 Epsilon Eridani 54 MESSENGER spacecraft 54 MErcury Surface Space ENvironment 54 GRB # 54 SINFONI 54 NASA Stardust spacecraft 54 NASA Kepler telescope 54 stellar occultation 54 Ultraviolet Imaging Spectrograph 54 moon Charon 53 NASA Stratospheric Observatory 53 NIRSpec 53 Solar Dynamics Observatory 53 laser altimeter 53 WMAP 53 Hinode 53 imaging spectrometer 53 comet 53 WISE spacecraft 53 Gliese #e 53 SDSS II 53 Comet Halley 53 ESA Mars 53 Fermi Gamma ray 53 Infrared Pathfinder Satellite 53 extrasolar planetary systems 53 Mars Reconnaissance Orbiter MRO 53 P/# A2 53 gravitational microlensing 53 Konacki 53 Lunar Prospector 53 NASA MESSENGER 53 astrometry 53 ESA Cluster 53 Stephan Quintet 53 Upsilon Andromedae 53 Europa Orbiter 53 gamma ray observatory 53 NASA rovers 53 Cosmic Background Explorer 53 Michael A'Hearn 53 LCROSS Lunar Crater Observation 53 planet Gliese #g 53 asteroid Steins 53 Diviner 53 Gerhard Schwehm 53 Planck telescope 53 MetOp satellite 53 Philae lander 53 NASA Lunar Reconnaissance 53 HiRISE camera aboard 53 ChemCam 53 Keck Interferometer 53 ESA Integral 53 comet Churyumov Gerasimenko 53 Explorer WISE 53 HIAPER 53 ESA SMART 53 microlensing 53 exosphere 53 Lunar CRater Observation 53 Curiosity rover 53 Observatory STEREO 52 outer planets 52 JDEM 52 Orbiter MRO 52 comets orbiting 52 galactic cosmic rays 52 GRBs 52 Cassini spacecraft 52 NFIRE 52 orbiting gamma ray 52 Fermi telescope 52 eclipsing binary 52 Hubble Space Telescope HST 52 infrared telescopes 52 ESO VLT 52 Jupiter flyby 52 Cancri e 52 Triangulum Galaxy 52 planets orbits 52 Titan flyby 52 Mini SAR 52 WISE telescope 52 Optical Gravitational Lensing Experiment 52 Shepherding Spacecraft 52 Planetary Transits 52 Envisat 52 Enceladus flybys 52 orbital rendezvous 52 transiting planet 52 NASA rovers Spirit 52 Hubble Ultra 52 Proba 2 52 THEMIS mission 52 ESA XMM Newton 52 Phobos Grunt 52 planets comets 52 Saturn magnetosphere 52 WASP #b 52 Stratospheric Observatory 52 infrared wavelengths 52 Descent Imager Spectral Radiometer 52 heliopause 52 orbiting Saturn 52 Orbiter 52 Kepler 9c 52 Mössbauer 52 NROL 52 orbiting Hubble Space Telescope 52 Planetary Fourier Spectrometer PFS 52 Context Camera 52 Epsilon Aurigae 52 ESA Envisat satellite 52 neutral mass spectrometer 52 Huygens descent 52 Infrared Astronomy 52 NASA Kepler spacecraft 52 Mars CRISM 52 Saturnian moon Titan 52 Sasselov 52 Oort Cloud 52 infrared astronomy 52 Gravity Probe B 52 Gliese #d 52 FORCAST 52 neutron spectrometer 52 spectrographs 52 GJ#b 52 ExoMars rover 52 Mars landers 52 PSR J# 52 ESA Planck 52 UCO Lick 52 Ring Nebula 52 AAVSO 52 Stardust NExT mission 52 Mars Climate Sounder 52 Kepler Telescope 52 Cloud Aerosol Lidar 51 icy moons 51 visit http:/saturn.jpl.nasa.gov 51 Observatory SDO 51 Orbiting Carbon Observatory OCO 51 Kailash Sahu 51 TerraSAR X 51 Elenin 51 Earth magnetotail 51 Orbital Express 51 comet Tempel 1 51 transiting exoplanets 51 gravitational lens 51 Mars Orbiter 51 Cassini flyby 51 UA Lunar 51 magnetospheric 51 LISA Pathfinder 51 planets orbiting distant 51 Nasa Kepler 51 LROC 51 heliosphere 51 Terrestrial Planet Finder 51 ray Space Telescope 51 AMPERE 51 Emily Lakdawalla 51 MetOp 51 comet Wild 51 GRB# 51 asteroid Itokawa 51 X ray telescopes 51 #P/Churyumov-Gerasimenko 51 flyby 51 Comet Lulin 51 magnetotail 51 OSTM Jason 2 51 Gliese #c 51 Comet Hale Bopp 51 Delta Cephei 51 Webb Telescope 51 NASA Wilkinson Microwave 51 Spaceguard Survey 51 SDSS III 51 occultations 51 planets orbiting 51 spectroscopic 51 Planck spacecraft 51 NASA ICESat 51 distant supernovae 51 phyllosilicates 51 ESA Envisat 51 NASA Lunar Prospector 51 polarimetry 51 astronomical objects 51 spectroscopically 51 OMEGA instrument 51 Kepler observatory 51 Themis satellites 51 COBE 51 substorm 51 comet #P/Churyumov-Gerasimenko 51 Mars Odyssey orbiter 51 transiting planets 51 Saturn moons 51 Jupiter moon Io 51 Infrared Array Camera 51 Antennae Galaxies 51 Galilean satellites 51 UVIS 51 Foton M2 51 highly elliptical orbits 51 HUDF 51 Mars Color Imager 51 ESA Herschel 51 Yinghuo 1 51 Crab Pulsar 51 filamentary structure 51 LCROSS spacecraft 51 magnetic reconnection 51 exoplanets planets 51 Adaptive optics 51 Herschel Space Telescope 51 UKIRT 51 AMIE camera 51 orbiting telescope 51 HiRISE camera 51 smallest exoplanet 51 Saturnian system 51 Deep Impact flyby spacecraft 51 Fermi Telescope 51 NASA Chandra 51 Moon Mineralogy Mapper M3 51 Ocean Salinity 51 NSSTC 51 planet Uranus 51 transiting exoplanet 51 Earth asteroid Itokawa 51 polar orbiting satellites 51 Sensing Satellite 51 NASA Great Observatories 51 Keck telescope 51 flyby Cassini 51 merging galaxies 51 INMS 51 Huygens 51 irregularly shaped asteroid 51 multiwavelength 51 NASA Fermi Gamma 51 optical wavelengths 51 SCISAT 50 EarthCARE 50 cometary dust 50 detect gravitational waves 50 GOCE 50 Reconnaissance Orbiter 50 Burst Alert 50 STEREO 50 ST5 50 Cryosat 50 noctilucent clouds 50 Hakan Svedhem 50 NFIRE satellite 50 neutrino oscillations 50 Neutral Mass Spectrometer 50 infrared spectrometer 50 ringed planet 50 LRO LCROSS 50 Earth Observation satellites 50 innermost planet 50 Mars Odyssey 50 Gravity Probe 50 impactor spacecraft 50 orbiter lander 50 radar altimetry 50 Flyby 50 exoplanets orbiting 50 Jakosky 50 SBSS satellite 50 Moon Mineralogy Mapper 50 Spitzer infrared spectrograph 50 ESA ERS 50 NASA Voyager spacecraft 50 Earth orbiting satellites 50 TerraSAR X satellite 50 Submillimeter Array 50 rover Opportunity 50 moons Phobos 50 Flyby spacecraft 50 Jupiter moons 50 Milky Way Galaxy 50 TrES 50 radial velocity technique 50 NASA Solar Terrestrial 50 martian meteorites 50 Gamma ray burst 50 Explorer IBEX 50 X ray emission 50 protoplanet 50 AKARI 50 Evolution Explorer 50 STORRM 50 Infrared Astronomy SOFIA 50 Spitzer Space Telescope 50 Nasa Mars Reconnaissance 50 Jupiter Icy Moons 50 Cometary 50 Cassini orbiter 50 Michael Studinger 50 N. Rathnasree 50 constellation Aquarius 50 NEAs 50 reconnaissance orbiter 50 axions 50 radio occultation 50 spectroscopic observations 50 Chandra Observatory 50 exoplanet 50 MAVEN 50 martian surface 50 ESO astronomer 50 JWST 50 comet McNaught 50 comet chaser 50 CDMS II 50 trans Neptunian objects 50 Horizons spacecraft 50 NASA WMAP 50 polar stratospheric 50 Saturnian moons 50 Heterodyne Instrument 50 star Gliese 50 Pan STARRS 50 planetary science 50 crewed spacecraft 50 infrared telescope 50 Compact Reconnaissance Imaging Spectrometer 50 RHESSI 50 rover panoramic 50 KBOs 50 Mars moon Phobos 50 Kuiper belt objects 50 Earth magnetosphere 50 radial velocity measurements 50 moons circling 50 Astro E2 50 Antenna LISA 50 Wolszczan 50 PharmaSat 50 twin STEREO spacecraft 50 Mars Pathfinder 50 OSIRIS 50 RS Ophiuchi 50 Cosmic Microwave Background 50 Ed Weiler NASA 50 NASA MESSENGER spacecraft 50 Mars Phobos 50 outermost planets 50 redshift 50 Jenniskens 50 navigate autonomously 50 Grillmair 50 SMOS mission 50 Saturn rings 50 Io Europa 50 interstellar boundary 50 CIRS 50 Hubble 50 Tempel 1 50 VLTI 50 Lunokhod 50 orbits 50 Space Telescope 50 planets orbiting sun 50 impactor 50 Comet Machholz 50 spacecraft orbiting 49 Hyper X 49 Jonathan Lunine 49 comet Lulin 49 distant quasars 49 ion propulsion 49 SMOS Soil Moisture 49 Cassini radar 49 Kuiper Belt Objects 49 Rosetta lander 49 Spaceguard 49 BLG #Lb 49 jovian 49 Titan flybys 49 hyperspectral imager 49 Mars Odyssey spacecraft 49 ultraviolet wavelengths 49 Mars orbiting spacecraft 49 interstellar dust grains 49 Rover MER 49 Landsat satellite 49 Lunar Reconnaissance Orbiter Camera 49 Andromeda Galaxy 49 Enceladus 49 celestial object 49 muon neutrino 49 comet nuclei 49 Opportunity rover 49 Beta Pictoris b 49 reionization 49 CoRoT 7b 49 spectroscopic analysis 49 TacSat 49 lunar orbits 49 Jet Propulsion Laboratory JPL 49 cosmological distances 49 solar corona 49 Tropical Rainfall Measuring 49 flybys 49 interplanetary spacecraft 49 astrometric 49 gravitational lenses 49 unmanned probes 49 shepherding spacecraft 49 Hubble Space Telescope 49 Cassini imaging 49 Deep Impact 49 ATLAS detector 49 distant galaxy 49 Deep Impact probe 49 NEAR Shoemaker 49 Esrange 49 LCLS 49 celestial sphere 49 Saturnian moon 49 STP S# 49 YES2 49 gradiometer 49 Compton Gamma Ray 49 lunar perigee 49 Saturn moon 49 Mars orbiter 49 Shenzhou capsule 49 Lagrangian 49 X ray wavelengths 49 axion 49 Mars Surveyor 49 planetary astronomer 49 Keck telescopes 49 polarimetric 49 Applied Physics Laboratory 49 Martian surface 49 A'Hearn 49 Keck Telescope 49 GLAST telescope 49 Virgo Cluster 49 Lunine 49 GROND 49 composite infrared spectrometer 49 Spectrometer 49 ecliptic plane 49 Butterfly Nebula 49 Magellanic Clouds 49 MARSIS radar 49 CHIPSat 49 http:/saturn.jpl.nasa.gov 49 Pluto Eris 49 Zeta Ophiuchi 49 sunlike star 49 infrared spectra 49 orbiting spacecraft 49 astrophysical objects 49 J# +# [002] 49 inhabitable planets 49 astrophysical phenomena 49 Chang'eI 49 Mini TES 49 Cosmic Evolution 49 GEochemistry 49 gravitational lensing 49 Astrophysics MOA 49 lunar crust 49 Hanny Voorwerp 49 Mars# 49 magnetosphere 49 Near Infrared Camera 49 Magnetic Imager HMI 49 GRACE satellites 49 Cabeus 49 Saturn moon Enceladus 49 spaceborne 49 Messenger spacecraft 49 sized planets orbiting 49 astronomical observations 49 comet flyby 49 Thermal Emission Spectrometer 49 CoRoT 49 interstellar medium 49 planetary transits 49 Smos 49 High Resolution Imaging 49 earthshine 49 spatially resolved 49 Solar Optical Telescope 49 Impactor 49 comets 49 AERONET 49 Foton spacecraft 49 orbiting observatory 49 ESA Huygens 49 twin rover Spirit 49 moon Europa 49 ESA CryoSat 49 Bill Borucki Kepler 49 Hubble Telescope 49 Foton M3 49 SN #D 49 Type Ia supernova 49 G#.# +#.# 49 WISE mapped 49 Wolf Rayet star 49 LIGO 49 Saturnian 49 Venusian atmosphere 48 HM Cancri 48 Space ENvironment GEochemistry 48 constellation Ursa Major 48 Neutron Detector 48 Galilean moons 48 exobiology 48 X ray spectrometer 48 TRMM 48 ExoMars mission 48 afterglows 48 orbiter Cassini 48 Herschel telescope 48 retroreflector 48 IceBridge 48 Mars Orbiter Camera 48 astronomical telescope 48 Moderate Resolution Imaging 48 Quadrantids 48 brown dwarf 48 CALIPSO satellites 48 constellation Carina 48 Jupiter Saturn 48 closest flyby 48 Spitzer infrared telescope 48 Very Large Array 48 Yarkovsky effect 48 WFC3 48 Radiation Belt 48 supersymmetric 48 ADM Aeolus 48 supernovae 48 fainter objects 48 Neutron Spectrometer 48 OSIRIS Rex 48 heliospheric 48 Eagle lunar lander 48 HIRES spectrometer 48 ROCSAT 2 48 MESSENGER MErcury Surface 48 X ray telescope 48 microlensing events 48 geosynchronous satellites 48 Apollo missions 48 neutrino detectors 48 pulsating aurora 48 Magnetospheric 48 SORCE 48 Synthetic Aperture Radar 48 Composite Infrared Spectrometer 48 NASA twin STEREO 48 lunar topography 48 C1XS 48 RQ# 48 MUSES C 48 Kuiper Belt objects 48 CryoSat mission 48 POES satellites 48 Orion nebula 48 Jovian moons 48 galaxy M# [001] 48 Project Ozma 48 redshifted 48 spectrographic 48 SDSS telescope 48 synthetic aperture radar 48 TrES 4 48 cryosphere 48 Cepheid variables 48 orbiting Mars 48 neutrino 48 Planck 48 moons orbiting 48 ultracold atoms 48 Red Rectangle 48 Cathy Peddie LRO 48 intrinsic brightness 48 Saturn moons Titan 48 Laser Interferometer Gravitational Wave 48 Orbiting Carbon Observatory 48 Valles Marineris canyon 48 QuikSCAT 48 XMM Newton observations 48 retrograde orbit 48 HD #b [001] 48 Mercury magnetosphere 48 Synthetic Aperture Radar SAR 48 CloudSat radar 48 cosmic ray 48 Gliese #g 48 SpaceWeather.com 48 spiral galaxy Messier 48 Europa Ganymede 48 Extrasolar Planet Search 48 comet tail 48 circumstellar 48 planetary nebulae 48 EVLA 48 Valles Marineris 48 Total Ozone Mapping 48 comet Hale Bopp 48 NASA twin rovers 48 Planck observatory 48 AU Mic 48 Cosmic Vision 48 SHARAD 48 exo planets 48 AMASE 48 interstellar cloud 48 Jupiter Uranus 48 planets 48 Shoemaker Levy 48 Reflection Radiometer 48 HiRISE images 48 supersymmetric particles 48 Lunar Crater 48 Mars rovers 48 infrared wavelength 48 Magellanic Stream 48 HEO payload 48 DEIMOS 48 Io Europa Ganymede 48 interferometry 48 constellation Eridanus 48 Telescope BAT 48 Ultraviolet Imaging Spectrograph UVIS 48 YORP effect 48 director Chuck Dovale 48 circumstellar disk 48 Nasa Deep Impact 48 Solar System 48 Jupiter Ganymede 48 Mike Leinbach shuttle 48 NASA Lunar Crater 48 Phobos 48 Mars rovers Spirit 48 infrared spectrometers 48 supernova explosion 48 Aqua satellite 48 waning gibbous 48 weak gravitational lensing 48 HRSC 48 Hinode spacecraft 48 Multi Object Spectrograph 48 perchlorate salts 48 Rosetta comet chaser 48 heliophysics 48 GOCE satellite 48 polar vortex 48 THEMIS Images 48 moons orbiting Saturn 48 Dumbbell Nebula 48 orbited Jupiter 48 Earth asteroids 48 Moessbauer spectrometer 48 Kuiper Belt object 48 NanoSail D 48 spacecraft flyby 48 Envisat satellites 48 Hipparcos 48 interferometer 48 Solar Terrestrial Relations 48 X ray binary 48 Decadal Survey 48 Giovanni Cassini 47 Lyman alpha 47 Shuttle Radar Topography 47 terrestrial planets 47 extragalactic 47 COSMO SkyMed 47 hypervelocity stars 47 hexagonal mirrors 47 Earthlike planets 47 cometary debris 47 meteoroid 47 cometary nucleus 47 retrograde orbits 47 Geminga 47 WM Keck Observatory 47 Toutatis 47 particle acceleration 47 Syrtis Major 47 SELENE 47 weather satellite TIROS 47 scatterometer 47 Helioseismic 47 KamLAND 47 constellation Sagittarius 47 Gravity Recovery 47 manager Gerhard Schwehm 47 manned lunar missions 47 NASA COBE satellite 47 Rayleigh scattering 47 Giove B 47 KAGUYA 47 Nuclear Spectroscopic Telescope Array 47 COBE satellite 47 Comet McNaught 47 celestial observations 47 ExoMars Trace Gas 47 Bullet Cluster 47 SMBHs 47 Space Infrared Telescope 47 NASA 47 Fermi LAT 47 http:/www.nasa.gov/cassini 47 Kuiper belt object 47 orbital velocity 47 NEOSSat 47 Sedna 47 spectrometer 47 asteroids Ceres 47 Volatile Evolution 47 Martian lander 47 Martian rovers 47 Bruce Jakosky 47 planetary surfaces 47 interacting galaxies 47 moon Io 47 Cassini flybys 47 SeaWiFS 47 exoplanet hunter 47 lunar landers 47 interstellar dust samples 47 Spectrograph 47 HEO payloads 47 icy comets 47 comet particles 47 BP Psc 47 Great Observatories Origins 47 Hubble Space 47 Mastcam 47 NASA Atmospheric Infrared 47 Alycia Weinberger 47 Saturn moons Enceladus 47 Express orbiter 47 cosmic cannibal 47 UDFy # 47 THEMIS spacecraft 47 lunar orbiter 47 sodium atoms 47 orbiter 47 satellites orbiting Earth 47 hypervelocity star 47 Martian arctic 47 SEGUE 47 X ray Observatory 47 exo planet 47 Stardust spacecraft swooped 47 NEEMO 47 photometer 47 ionosphere 47 ESO PR 47 ejecta 47 HD# [002] 47 Space Shuttle STS 47 TDRS K 47 supernova remnants 47 star Proxima Centauri 47 Trifid Nebula 47 quark gluon plasma 47 MG J# +# 47 Heliospheric Investigation 47 orbital insertion 47 planet orbits 47 quasar 47 Astrobotic 47 particle astrophysics 47 Herschel Planck 47 stationary lander 47 gamma ray bursts 47 super Earths 47 spatial dimensions 47 NASA Far Ultraviolet 47 Kuiper belt 47 NICMOS 47 mineralogical composition 47 Neil Gehrels 47 Mini Thermal Emission 47 Lunar Orbiter Laser Altimeter 47 asteroid 47 DEEP2 47 substorms 47 Marsis 47 SpaceX Falcon 47 Martian equator 47 Chandrayaan II 47 Mission SRTM 47 Venus Climate Orbiter 47 Astrophysics Cambridge Mass. 47 starburst galaxies 47 radar altimeters 47 gamma ray astronomy 47 Triangulum 47 constellation Perseus 47 orbit GEO 47 perihelion 47 S/# S1 47 orbiting Chandra 47 Huygens Probe 47 cosmological parameters 47 ESA Huygens probe 47 Tau Ceti 47 Keck Observatory 47 Explorer GALEX 47 Comet Encke 47 starburst galaxy 47 Digitized Sky Survey 47 rocky planets 47 visible wavelengths 47 GOES satellites 47 Stratellite 47 Sounder AIRS instrument 47 nanosatellites 47 Kepler 9b 47 Carina constellation 47 Saturn Enceladus 47 Kuiper Belt 47 adaptive optics 47 WISE infrared