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(Click for frequent words.) 67 infrared telescopes 65 Earth orbiting satellites 64 orbiting observatories 64 THEMIS spacecraft 64 Nasa spacecraft 63 spaceborne 62 Keck telescopes 62 telescopes 62 X ray telescopes 61 radiometers 61 Solar TErrestrial RElations Observatory 61 Cometary 60 Hubble Space Telescope HST 60 Martian rovers 60 optical telescopes 60 X ray observatories 60 electro optical sensors 60 GALEX 60 observatories 59 infrared spectrometers 59 IBEX spacecraft 59 hexagonal mirrors 59 THEMIS satellites 59 infrared ultraviolet 59 situ measurements 59 X ray Telescope XRT 59 ion thrusters 59 discover Fomalhaut 59 AERONET 58 satellites orbiting Earth 58 interplanetary spacecraft 58 Spectrograph 58 unmanned probes 58 laser altimeter 58 HARPS instrument 58 observing satellites 58 WMAP satellite 58 Ultraviolet Optical Telescope 58 cosmic cannibal 58 telescopes astronomers 58 neutron spectrometer 58 geosynchronous satellites 58 sized planets orbiting 58 satellites orbiting 58 gamma ray detectors 58 Mars Pathfinder lander 58 SuperWASP 58 radio occultation 58 STEREO spacecraft 57 earth orbiting satellites 57 extrasolar 57 distant supernovae 57 Observatory SDO 57 orbiting Hubble Space Telescope 57 lunar landers 57 Mars landers 57 X ray observatory 57 moons Phobos 57 penetrating radar 57 detect gravitational waves 57 Geminga 57 moon Io 57 ESO VLT 57 submillimetre 57 gamma ray observatories 57 Jovian moons 56 Herschel Space 56 optical telescope 56 radial velocity technique 56 NASA Gamma ray 56 multiband imaging photometer 56 gamma ray observatory 56 Great Observatories 56 WISE infrared 56 Array ALMA 56 Voyager probes 56 MG J# +# 56 satellites 56 robotic telescopes 56 Extragalactic 56 electric ion propulsion 56 Mars orbiters 56 gamma ray telescope 56 astronomical telescope 56 Spitzer infrared 56 Spitzer infrared telescope 56 ion propulsion engines 56 infrared imager 56 orbiting observatory 56 NuSTAR 56 Mars moon Phobos 56 spacecrafts 56 planetary Transits 56 Fermi telescope 56 imaging spectrometer 56 aboard ESA Envisat 56 NFIRE satellite 56 photometer 56 Atacama Large Millimeter submillimeter 56 NEOSSat 56 ESA XMM Newton 56 particle detectors 56 radioisotope thermoelectric generators 56 LISA Pathfinder 56 spacecraft orbited 56 lunar rovers 56 spiral galaxy Messier 56 SOLO TREC 56 ion propulsion 56 Relations Observatory STEREO 56 highly elliptical orbits 56 Sojourner rover 56 JIMO 56 fainter objects 55 NASA rovers 55 Faint Object 55 infrared observatory 55 moon landers 55 NASA satellites orbiting 55 infrared telescope 55 Heterodyne Instrument 55 Proxima Centauri 55 GOES satellites 55 uncrewed 55 gamma ray telescopes 55 lidar instrument 55 exoplanets orbiting 55 Jupiter Ganymede 55 exoplanetary 55 geo synchronous 55 radioisotope thermoelectric generator 55 Infrared Array Camera 55 Planck satellite 55 orbiting gamma ray 55 Orbiter MRO 55 APXS 55 planets orbiting sun 55 NASA Far Ultraviolet 55 Keck telescope 55 radar interferometry 55 KBOs 55 ENVISAT 55 hyper spectral 55 LRO spacecraft 55 EELVs 55 orbital rendezvous 55 Imaging Spectrometer 55 ultraviolet spectrograph 55 NASA MESSENGER spacecraft 55 astronomical telescopes 55 Light Detection 55 SIM PlanetQuest 55 SIRTF 55 WFC3 55 Orbiter LRO 55 Landsat satellites 55 lunar orbiters 55 scanning electron microscopes 55 starshade 55 telescope 55 VISTA telescope 55 Convection Rotation 55 Synthetic Aperture Radar 54 radiotelescope 54 Viking landers 54 robotic rover 54 Ocean Salinity 54 Hubble orbits 54 HIRES spectrometer 54 spectrographs 54 NASA twin STEREO 54 Venusian atmosphere 54 Infrared Telescope Facility 54 Foton spacecraft 54 Cassini Huygens 54 coronagraph 54 GEO satellites 54 NASA ICESat 54 JDEM 54 Total Ozone Mapping 54 Ranging spacecraft 54 Infrared Pathfinder Satellite 54 SkyRouter 54 ROSAT 54 VIRTIS instrument 54 Upsilon Andromedae 54 Cloud Aerosol Lidar 54 Rosetta orbiter 54 spacecraft 54 telescopic camera 54 Context Camera 54 Uninhabited Aerial Vehicle 54 polarimetry 54 Fomalhaut b 54 NASA Landsat 54 Cerro Paranal 54 polar orbiting satellites 54 BepiColombo 54 hyperspectral imager 54 Kuiper belt object 54 smallest exoplanet 54 periodic dimming 54 retroreflector 54 X ray spectrometer 54 moons orbiting 54 TSN PZ camera 54 LORRI 54 Suzaku X ray 54 ESA Planck 54 Solar Arrays 54 multibeam 54 SeaWiFS 54 microwave radiometers 54 Galileo satellites 54 Evolution Explorer 54 Gamma ray 54 HIAPER 54 Moderate Resolution Imaging 54 CALIPSO 54 Lunar Reconnaissance Orbiter LRO 54 exoplanets planets 54 geostationary orbits 54 Earth Observation satellites 54 geostationary satellites 54 Philae lander 54 inch Samuel Oschin 54 Area Telescope LAT 54 Martian lander 54 Ritchey Chrétien 54 Imaging Spectroradiometer MODIS instrument 54 AUVs 54 Global Positioning Satellites 54 Helioseismic 54 Ulysses spacecraft 53 Hubble Space telescope 53 polar orbits 53 Samuel Oschin Telescope 53 interferometers 53 Mission SRTM 53 WISE telescope 53 gamma ray spectrometer 53 particle detector 53 gravitational microlensing 53 Epsilon Eridani 53 HiRISE camera 53 thermal infrared 53 remote sensing instruments 53 Cygnus Lyra region 53 X ray wavelengths 53 Particle accelerators 53 visit http:/saturn.jpl.nasa.gov 53 Kepler spacecraft 53 Aqua satellite 53 planetary surfaces 53 Very Large Telescope 53 Infrared Camera 53 LEO satellites 53 SBSS Block 53 X ray binary 53 nanosatellites 53 Optical Spectroscopic 53 Saturnian moon Titan 53 ray Space Telescope 53 robotic spacecraft 53 UKIRT 53 USVs 53 Mars orbiter 53 transiting planets 53 geostationary communications 53 Curiosity rover 53 Telescope LSST 53 Hubble Space Telescopes 53 remote sensing satellites 53 meter Keck telescopes 53 cryogenically cooled 53 microshutters 53 Express orbiter 53 intrinsic brightness 53 detect gamma rays 53 Lunar Reconnaissance Orbiter Camera 53 Reflection Radiometer 53 Adaptive optics 53 Deep Impact flyby spacecraft 53 Upsilon Andromedae b 53 exo planet 53 NASA Cassini 53 BLG #Lb 53 Subaru telescope 53 comets asteroids 53 MUOS satellites 53 astrometric 53 Jupiter Icy Moons Orbiter 53 interstellar dust samples 53 Multi Object Spectrograph 53 Skynet 5C 53 blazars 53 Remotely operated 53 Mars Color Imager 53 EPOCh 53 Infrared Thermal Imaging Spectrometer 53 earthlike planets 53 xenon propellant 53 ESA Envisat 53 Synthetic Aperture Radar SAR 53 Galilean satellites 53 Space ENvironment GEochemistry 53 GJ #b [002] 53 orbiting satellites 53 Multi Object Spectrometer 53 Interferometer 53 inhabitable planets 53 EPOXI mission 53 radar altimeter 53 spacecraft orbiting 53 robotic explorer 53 Infrared Astronomical Satellite IRAS 53 Impactor 53 robotic rovers 53 Herschel Space Telescope 53 Nasa Kepler 53 Bug Nebula 53 geosynchronous Earth 53 High Resolution Imaging 53 galaxy M# [001] 53 adaptive optics 53 Panoramic Survey 53 energetic electrons 53 Telescope Array 53 BepiColombo mission 53 retrograde orbit 53 Reflection Radiometer ASTER 53 twin Voyager spacecraft 53 Ikonos 53 TDRS satellites 52 scramjet engines 52 neutrino telescope 52 dexterous robot 52 geo stationary satellites 52 Solar Terrestrial Relations 52 Near Infrared Camera 52 X ray telescope 52 geosynchronous satellite 52 constellations Cygnus 52 rover panoramic 52 solar radii 52 Iridium satellites 52 submillimetre wavelengths 52 MSL rover 52 Comet Hartley 2 52 Epsilon Aurigae 52 Kuiper Belt Objects 52 hyperspectral sensors 52 gradiometer 52 GOSAT 52 comet flyby 52 Muchachos Observatory 52 SMOS Soil Moisture 52 ESA ERS 52 FLIR Forward Looking 52 MESSENGER MErcury Surface 52 Hyperspectral Imager 52 reentry capsule 52 multiwavelength 52 Rosetta spacecraft 52 WISE spacecraft 52 Cassini flyby 52 aperture telescope 52 VIRTIS 52 NASA Kepler spacecraft 52 NASA Atmospheric Infrared 52 Climate Experiment SORCE 52 Beta Pictoris b 52 Galilean moons 52 NASA THEMIS 52 COROT 52 NASA Wilkinson Microwave 52 geosynchronous 52 satellite IKONOS 52 Foton M3 52 Nasa Mars Reconnaissance 52 Magnetospheric 52 sunlike stars 52 submillimeter wavelengths 52 Flyby 52 Shuttle Docks 52 orbit GEO 52 astrophysical objects 52 amateur astronomers peering 52 Climate Experiment GRACE 52 Solar Sail 52 LAGEOS 52 particle analyzers 52 Alpha Particle 52 Terrestrial Planet Finder 52 thruster rockets 52 NASA STEREO 52 Churyumov Gerasimenko 52 Telescopes 52 PrintVision 52 steering wheel tilts 52 Mini Thermal Emission 52 Constellation Observing 52 C1XS 52 unmanned robotic 52 Pleiades cluster 52 coronal mass ejections CMEs 52 polar orbiting 52 Galileo constellation 52 millimeter wavelength 52 Imaging Spectrograph 52 Wilkinson Microwave Probe 52 Aerosonde aircraft 52 Space Telescopes 52 NASA EPOXI mission 52 telescopic observations 52 Viking orbiters 52 Saturn Cassini 52 LADEE 52 Exoplanet 52 Diviner instrument 52 gyro stabilized 52 Advanced Microwave Scanning 52 gamma ray detector 52 NASAs 52 astrophysical phenomena 52 Earthlike planets 52 hypersonic jet 52 luminous galaxies 52 bolometers 52 Kuiper belt objects 52 deorbiting 52 Cosmic Origins Spectrograph COS 52 Burst Alert 52 Anisotropy Probe WMAP 52 planets orbiting distant 52 SpaceShip Two 52 inch refractor telescope 52 unmanned reconnaissance 52 scramjets 52 astronomical observations 52 KODAK CCD Image Sensors 52 SCIAMACHY 52 neutrino detectors 52 Argo floats 52 C NOFS 51 spectroscopic observations 51 orbiting spacecraft 51 SBSS satellite 51 Magnetic Imager HMI 51 asteroids orbiting 51 Mars Orbiter Camera 51 Hubble 51 robotic explorers 51 HM Cancri 51 planets asteroids 51 Kepler Space Telescope 51 tokamaks 51 robotic landers 51 Antenna LISA 51 Cerro Pachon 51 D CIXS 51 Solar Dynamics Observatory 51 occultations 51 infrared 51 Chajnantor plateau 51 NIRSpec 51 Deep Impact comet 51 Shepherding Spacecraft 51 Space Telescope GLAST 51 Ranging MESSENGER spacecraft 51 hypersonic speeds 51 laser altimetry 51 astrometry 51 X ray detector 51 SMOS 51 cosmological distances 51 SINFONI 51 neutrino particles 51 micrometeoroids 51 orbiting 51 Interior Laboratory GRAIL 51 Z Backscatter X ray 51 MAVs 51 radiosondes 51 #/#-ton truss 51 Zeta Ophiuchi 51 High Altitude Airship 51 Martian dust 51 Herschel telescope 51 Interferometric 51 extrasolar planets orbiting 51 Aerojet propulsion 51 tidal bulge 51 spacecraft Chandrayaan 1 51 astronomical observatories 51 RXTE 51 Manned missions 51 XMM Newton 51 planetary missions 51 RADARSAT 2 51 Cassini Image 51 panchromatic camera 51 Keck Telescope 51 radars telemetry 51 distant quasar 51 LOFAR 51 spectrometers 51 gaseous planet 51 radial velocity 51 lidar 51 entire Milstar constellation 51 ALMA antennas 51 radar altimeters 51 ESA Envisat satellite 51 colliders 51 SPIRE instrument 51 orbiters landers 51 astro comb 51 carry heavier payloads 51 Atlantis Undocks From 51 icy moons 51 infrared spectrograph 51 Predator drone flies 51 GE CF6 engines 51 DMSP F# 51 Starfire Optical Range 51 Mars orbiting spacecraft 51 GLAST spacecraft 51 OGLE TR #b 51 O OREOS 51 QuickBird 51 supernovae explode 51 NASA rovers Spirit 51 LIDAR Light 51 STEREO mission 51 Eurostar E# 51 airglow 51 Saturnian moon 51 faint galaxies 51 high altitude airship 51 Keck Interferometer 51 waning gibbous 51 robotic probes 51 NASA Cosmic Background 51 asteroid Vesta 51 gravitational slingshot 51 Mars Orbiter 51 EVLA 51 magnetospheres 51 orbiter Mars Odyssey 51 interstellar dust grains 51 radiometer 51 TerraSAR X 51 telescope atop Mauna 51 Pluto Charon 51 Helios 2B 51 CoRoT satellite 51 Orbiting Carbon Observatory OCO 51 Kepler 9c 51 Ray Spectrometer 51 interstellar dust particles 50 meter Keck telescope 50 Opportunity rovers 50 photomultiplier tubes 50 NIRCam 50 millimeter wavelengths 50 Spectroscopic Explorer 50 Jupiter Icy Moons 50 Ian McShane Pillars 50 NASA twin rovers 50 MZ 3A 50 JWST 50 maneuvering thrusters 50 giant gaseous planets 50 Faulkes Telescope 50 Laser Interferometer Gravitational Wave 50 Planetary Transits 50 Cepheid variables 50 Proba 2 50 Galileo spacecraft 50 Higgs bosons 50 Cat Paw Nebula 50 equatorial orbit 50 comet Lulin 50 Absorption Spectroscopy 50 SECCHI 50 synthetic aperture 50 Fermi Telescope 50 Pan STARRS telescope 50 Globalstar constellation 50 stellar occultations 50 Pan STARRS 50 DEIMOS 50 gravitationally lensed 50 microlensing events 50 orbital solitude 50 neutron detectors 50 interplanetary missions 50 Highly Adaptable Satellite 50 auroral emissions 50 HARPS spectrograph attached 50 spectral bands 50 sunlike star 50 proton particles 50 volcanic moon Io 50 Mars Pathfinder 50 jovian 50 thermoelectric cooling 50 crewed missions 50 Nasa Mars Odyssey 50 orbiting telescope 50 Galactic cosmic rays 50 airborne LIDAR 50 Arecibo radio 50 wheeled rovers 50 gimbaled 50 HD#b 50 Lunar Rover 50 GLAST telescope 50 Submillimeter Array 50 TDRSS 50 multibeam sonar 50 Composite Infrared Spectrometer 50 RHESSI 50 ExoMars rover 50 Comet Hartley 50 moon Deimos 50 shortwave infrared 50 Jupiter flyby 50 Tropospheric Emission Spectrometer 50 Super Earths 50 DIXI 50 Cancri e 50 Infrared Telescope 50 Valles Marineris canyon 50 unpowered glider 50 Lunar CRater Observation 50 Mauna Kea Hawaii 50 interplanetary probes 50 hyperspectral 50 maritime subsurface 50 hunting Kepler telescope 50 filamentary structure 50 NASA Kepler telescope 50 geo stationary orbit 50 millisecond pulsars 50 EPOXI spacecraft 50 Voyager spacecraft 50 crewed spacecraft 50 particle smasher 50 SPHERES 50 matter antimatter annihilation 50 faraway planets 50 AMPERE 50 Cosmic Origins Spectrograph 50 Telescope BAT 50 infrared astronomy 50 extragalactic 50 flyby spacecraft 50 Main Injector Neutrino 50 Coma Cluster 50 windshield wiper maneuver 50 Kuiper Belt Object 50 InfraRed 50 exoplanet hunter 50 XMM Newton satellite 50 NASA Spacecraft 50 LCROSS spacecraft 50 frequency combs 50 ESA Herschel 50 Ultraviolet Imaging Spectrograph 50 Heliospheric Observatory SOHO 50 ultrashort pulses 50 ELTs 50 flybys 50 asteroid Steins 50 manned submersibles 50 wavelength infrared 50 Hubble Constant 50 submillimeter 50 NASA Stratospheric Observatory 50 rover Sojourner 50 Cassini flybys 50 ICESat 50 infrared imagery 50 radial velocity method 50 Spitzer infrared spectrograph 50 rovers Spirit 50 spacecraft Cassini 50 MODIS instrument 50 moon Ganymede 50 elongated orbits 50 geostationary earth 50 orbiting Hubble telescope 50 Solar Orbiter 50 Chilean Atacama Desert 50 photometers 50 Delta Cephei 50 Panoramic Camera 50 Lovell Telescope 50 optical wavelengths 50 moons orbiting Saturn 50 Atacama Large Millimeter Array 50 HESS telescopes 50 Earthlike 50 Envisat satellite 50 dropsondes 50 Virgo Cluster 50 Triangulum Galaxy 50 orbited Jupiter 50 Hubble Space Telescope 50 Mars Reconnaissance Orbiter MRO 50 Cygnus spacecraft 50 Comet Churyumov Gerasimenko 50 ESTRACK 50 neutron detector 50 spectrographic 50 rocket thrusters 50 TerraSAR X satellite 50 Compton Gamma Ray 50 Nikon D# Kowa 50 transiting exoplanets 50 Scatterometer 50 Cryosat 50 Spectrometers 50 atomic icebreaker 50 CMB radiation 50 ESA Cluster 50 synchronous polar 50 RS Ophiuchi 50 photometry 50 Spectroradiometer 50 deformable mirrors 50 comets orbiting 50 Enceladus flybys 50 Spectrometer 50 Gamma ray burst 50 Interferometer VLTI 50 celestial observations 50 eyepiece #/#s f/#.# 50 HiRISE camera aboard 50 magnetic spectrometer 50 Konacki 50 Keck Telescopes 50 durable twin rovers 50 Spitzer Space Telescopes 50 interstellar particles 50 monochromators 50 P Churyumov Gerasimenko 50 Epoxi 50 Alphasat 50 NASA QuikScat satellite 50 Hubble Telescope 50 European Extremely Large 50 tow dollies 50 DKET 50 comet Churyumov Gerasimenko 50 TNOs 50 extrasolar worlds 50 Huygens mission 50 CHIPSat 49 NASA Great Observatories 49 NASA Lunar Prospector 49 Seaglider 49 Mars Odyssey spacecraft 49 sondes 49 asteroid flyby 49 infrared detectors 49 highly elliptical orbit 49 Earthlike planet 49 assumed planets circling 49 NASA CloudSat 49 Lunar Prospector 49 satellite altimeters 49 HARPS spectrograph 49 sulphate particles 49 Greenbelt Md. manages 49 radial velocities 49 gravitational lenses 49 panchromatic imagery 49 P#/P# truss 49 lander rover 49 polarimetric 49 CBERS 2B 49 synthetic aperture radar 49 NFIRE 49 galactic nucleus 49 IR LEDs 49 ExoMars mission 49 Mercury magnetosphere 49 Fermi Gamma ray 49 Launch Scrubbed 49 Shuttle Radar Topography 49 constellation Hercules 49 exosphere 49 Crawler Transporter 49 subsurface ocean 49 Cargo Launch Vehicle 49 planet HD #b 49 Advanced Tactical 49 Earth Observation EO 49 #P/Churyumov-Gerasimenko 49 Io Europa 49 Spaceguard Survey 49 astronomical objects 49 extrasolar planetary 49 Mössbauer 49 infrared LEDs 49 Ring Nebula 49 NEOWISE 49 ESA Huygens 49 Tropical Rainfall Measuring 49 circumstellar disks 49 interferometer 49 MESSENGER spacecraft 49 Deep Impact probe 49 Autonomous Underwater Vehicles AUVs 49 spectroscope 49 QWIP 49 parabolic antenna 49 UAVSAR 49 Fornax cluster 49 UUVs 49 ionized gases 49 robot rovers 49 Kuiper Belt object 49 SWIR cameras 49 Imaging Telescope Array 49 hypervelocity 49 Ultra Deep 49 SOHO spacecraft 49 Cartosat 2A 49 Lidar 49 UVIS instrument 49 Cosmic Radiation 49 Laser Ranging 49 TDRS K 49 unmanned 49 Neptune Uranus 49 infared 49 Libra constellation Vogt 49 Intelsat satellites 49 moons circling 49 stratospheric balloon 49 gamma ray radiation 49 robotic lander 49 ProtoStar II 49 AKARI 49 nightglow 49 geosynchronous orbits 49 electro optic sensors 49 Unmanned Surface 49 NASA ESA Hubble 49 Arecibo radar 49 EO IR sensor 49 relativistic particles 49 Extrasolar planets 49 infra red imaging 49 Huygens descent 49 Falcon 1e 49 Stratellite 49 neutralinos 49 Thermal Emission Spectrometer 49 WM Keck Observatory 49 Earth Connection Coronal 49 GOCE 49 hydrazine thrusters 49 irregularly shaped asteroid 49 X ray binaries 49 microgravity experiments 49 Orbital Debris 49 cryocoolers 49 interferometric technique 49 VY Canis Majoris 49 Yinghuo 1 49 e MERLIN 49 Doppler radars 49 DSCS III 49 orbiter lander 49 planets orbiting stars 49 Lunokhod 49 Infrared Astronomical Satellite 49 UVIS 49 Mars rovers Opportunity 49 Lunar Crater 49 VLTI 49 Exoplanets 49 Interferometric Synthetic Aperture Radar 49 E 8C 49 comet nucleus 49 Observatory Very 49 moons orbiting Pluto 49 Radar ASAR instrument 49 infrared spectrums 49 cosmic gamma rays 49 Remote sensing 49 airbursts 49 reconnaissance orbiter 49 Webb Telescope 49 InteLite ® 49 Turanor 49 Scramjet 49 RTI middleware 49 gamma rays emitted 49 laser designators 49 gamma ray flares 49 Spacecraft 49 satelites 49 outermost planets 49 permanently shadowed regions 49 UVOT 49 NASA rover Spirit 49 ecliptic plane 49 Satellites GOES 49 Dwarf galaxies 49 storable propellants 49 STSS satellites 49 SDSS telescope 49 exoplanet orbiting 49 meteorological satellites 49 FPAs 49 supergiant stars 49 emit X rays 49 comet particles 49 interacting galaxies 49 1worldspace TM 49 ESA SMART 49 Titan IVB 49 Elenin 49 mineralogical mapping 49 planets Uranus 49 TanDEM X 49 heavily instrumented 49 laser designator 49 GEochemistry 49 Historical Imagery 49 Planck telescope 49 microlensing technique 49 origins spectrograph 49 Cosmic Background Explorer COBE 49 Neutron Detector 49 NASA Kepler 49 planetary nebulae 49 Elevation Satellite 49 Explorer WISE 49 Cassini orbiter 49 Stardust spacecraft 49 Saturn outermost 49 CARTOSAT 2A 49 constellation Eridanus 49 Pancam 49 Magnetometer 49 radial velocity measurements 49 Mossbauer spectrometer 49 spaceward 49 photons particles 49 Profiler Suite OMPS 49 linear Fresnel 49 quantum cascade 49 Horsehead Nebula 49 particle beam 49 cosmic ray observatory 49 SIRAL 48 NASA Infrared Telescope 48 planetary transits 48 auroral displays 48 Keck Observatory 48 ocean buoys 48 Extrasolar Planet 48 spinning neutron stars 48 Lunar Laser Ranging 48 Virgin Galactic unveils 48 manned spaceships 48 Gamma ray bursts 48 infrared photons 48 unmanned airships 48 Fresnel lenses 48 gamma rays X rays 48 Canadarms 48 Neutron stars 48 Galaxy Evolution 48 NASA Solar Terrestrial 48 infra red sensors 48 Gamma ray Large 48 Perseus Cluster 48 constellation Lacerta 48 smallest exoplanets 48 Descent Imager Spectral Radiometer 48 ARCTUS 48 planet Gliese #g 48 Kangaroo Rats 48 Observation Satellite 48 http:/saturn.jpl.nasa.gov 48 Orbiter spacecraft 48 Anthony Remijan 48 suborbital spacecraft 48 inch Schmidt Cassegrain 48 N. Rathnasree 48 CloudSat