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(Click for frequent words.) 61 NASA Gravity Probe 59 NuSTAR 59 NASAs 59 Gravity Probe 59 NASA Cosmic Background 59 Planck spacecraft 59 planetary Transits 58 Cassini Huygens 58 GOCE 58 Convection Rotation 57 SIRTF 57 Hubble Space Telescope HST 56 Cosmic Background Explorer 56 Jupiter Icy Moons 56 GIOVE B 56 orbital insertion 56 COROT 56 Solar TErrestrial RElations Observatory 56 YES2 56 JIMO 56 Tropical Rainfall Measuring 56 Cryosat 56 WMAP satellite 56 Voyager spacecraft 56 spacecraft 56 Planck satellite 56 Interior Laboratory GRAIL 56 NASA Stratospheric Observatory 55 orbiting observatories 55 satellite Giove 55 Antenna LISA 55 Space Infrared Telescope 55 Lunar Reconnaissance Orbiter LRO 55 Planetary Transits 55 Nasa spacecraft 55 Kepler Mission 55 radio occultation 55 ESA Herschel 55 Anisotropy Probe WMAP 55 CALIPSO 55 BepiColombo 55 Krimigis 55 Galileo spacecraft 55 ESA Rosetta 55 X ray observatory 55 Cassini Huygens spacecraft 55 Hubble telescope 55 APXS 55 gamma ray observatory 55 Cancri e 54 HiRISE camera aboard 54 orbital rendezvous 54 D CIXS 54 orbiting telescope 54 SIM PlanetQuest 54 Jupiter Icy Moons Orbiter 54 interplanetary spacecraft 54 Orbiting Carbon Observatory 54 infrared observatory 54 Hubble Space telescope 54 orbiting gamma ray 54 NASA Stardust spacecraft 54 NASA Lunar Crater 54 Einstein theories 54 orbiting observatory 54 Mars Surveyor 54 Fermi telescope 54 detect gravitational waves 54 Infrared Astronomy 54 RBSP 54 robotic spacecraft 54 Cassini Equinox 54 Stratospheric Observatory 54 Terrestrial Planet Finder 54 LCROSS mission 54 Hubble servicing 54 MARSIS 54 Spaceguard 54 Laser Interferometer Gravitational Wave 54 infrared telescope 54 Jules Verne ATV 54 MetOp 54 ST5 54 six wheeled rover 54 JWST 54 orbiting Hubble Space Telescope 54 UKIRT 53 Climate Experiment 53 Orbiter LRO 53 IBEX spacecraft 53 NASA Wilkinson Microwave 53 astronomical telescope 53 NASA Far Ultraviolet 53 Helioseismic 53 MErcury Surface Space ENvironment 53 ESA Planck 53 Hubble Servicing 53 New Horizons spacecraft 53 Wilkinson Microwave Anisotropy Probe 53 Hubble 53 WISE spacecraft 53 Climate Experiment GRACE 53 Infrared Astronomy SOFIA 53 Hubble Telescope 53 NASA THEMIS 53 LRO LCROSS 53 Giove B 53 SPHERES 53 Stardust spacecraft 53 LISA Pathfinder 53 astrometric 53 LCROSS 53 STIS 53 SCISAT 53 polar orbiting satellites 53 CubeSat 53 Pluto Kuiper Belt 53 Mars orbiting spacecraft 53 STEREO mission 52 Anisotropy Probe 52 NASA 52 Infrared Pathfinder Satellite 52 gravitational lenses 52 airborne observatory 52 ESO VLT 52 Keck telescope 52 astrometry 52 ESA ASI 52 GPS IIF 52 NASA STEREO 52 ion propulsion 52 MARSIS radar 52 NROL 52 LORRI 52 GPS IIR M 52 Foton M2 52 Huygens Probe 52 Constellation Observing 52 Orbiter MRO 52 geoid 52 Cloud Aerosol Lidar 52 EPOCh 52 Hubble Space 52 Nasa 52 Huygens mission 52 DIXI 52 Near Infrared Camera 52 OSIRIS REx 52 Mars Pathfinder 52 NASA ESA Hubble 52 Keck telescopes 52 FASTSAT 52 Observatory STEREO 52 Churyumov Gerasimenko 52 XMM Newton 52 EPOXI 52 Curiosity rover 52 THEMIS satellites 52 Mars Climate Sounder 52 Mössbauer 52 Ocean Salinity SMOS 52 NASA MESSENGER 52 Mars rovers Spirit 52 Cosmic Microwave Background 52 NIRSpec 52 ESA Cluster 51 NASA twin rovers 51 Solar Orbiter 51 GOCE satellite 51 Ares Orion 51 SUSY 51 ESA Integral 51 STEREO 51 AKARI 51 nanosatellite 51 PSLV C6 51 Kepler spacecraft 51 Ulysses spacecraft 51 Jet Propulsion Laboratory JPL 51 TanDEM X 51 SELENE 51 Herschel telescope 51 Ares IX rocket 51 FORCAST 51 LIGO 51 Relations Observatory STEREO 51 Servicing Mission 51 millisecond pulsar 51 ICESat 51 RHESSI 51 Apollo missions 51 exoplanetary 51 Hubble Space Telescope 51 gaseous planet 51 Flyby spacecraft 51 Phobos Grunt 51 CALIPSO satellites 51 Philae lander 51 DART spacecraft 51 Einstein theory 51 cosmological observations 51 Gravity Recovery 51 Pan STARRS 51 Rover MER 51 ESA XMM Newton 51 interplanetary missions 51 Astro E2 51 hypersonic flight 51 Macroscale Interactions during 51 telescope 51 CloudSat 51 Sojourner rover 51 LRO spacecraft 51 SMOS 51 NanoSail D 51 MUSES C 51 SMOS mission 51 Interstellar Boundary Explorer 51 Max Launch Abort 51 LOCAD PTS 51 Thermal Emission Spectrometer 51 Ed Weiler NASA 51 HD#b 51 GRB #B 51 electric ion propulsion 51 Cassini flyby 51 equatorial orbit 51 WISE infrared 51 spacecraft Cassini 51 Keck Interferometer 51 Mercury flyby 51 GEochemistry 51 THEMIS mission 50 RXTE 50 Orbital Express 50 MetOp satellite 50 Observatory SDO 50 Asteroid Itokawa 50 Cosmic Microwave Background CMB 50 Hubble orbits 50 Deep Impact eXtended Investigation 50 X #B 50 LRO 50 Helios 2B 50 MAVEN 50 QuikSCAT 50 Herschel Space Telescope 50 SuitSat 50 O OREOS 50 director Chuck Dovale 50 radial velocity 50 ExoMars mission 50 NASA LCROSS 50 Rosetta orbiter 50 Mössbauer spectrometer 50 NASA Jet Propulsion Laboratory 50 Viking Lander 50 Proba 2 50 SBSS satellite 50 astrophysical phenomena 50 Compton Gamma Ray 50 extrasolar planetary 50 GALEX 50 SPICAM 50 ESA ERS 50 NOvA 50 Global Surveyor 50 Nuclear Spectroscopic Telescope Array 50 STScI 50 neutron spectrometer 50 Mars# 50 HiRISE camera 50 Aboard Endeavour 50 ESA Huygens probe 50 Spectrograph 50 imaging spectrometer 50 Einstein relativity theory 50 WM Keck Observatory 50 ESA SMART 50 ATV Johannes Kepler 50 Titan flyby 50 Solar Dynamics Observatory 50 Sensing Satellite LCROSS 50 orbiter 50 Planck observatory 50 Lunar Orbiter 50 GSTB V2 50 Webb Telescope 50 transiting exoplanet 50 quantum teleportation 50 GOES O 50 orbit insertion 50 interferometers 50 spaceplane 50 Launch Scrubbed 50 Jupiter flyby 50 robotic explorer 50 Interferometer 50 shuttle Endeavor 50 UCO Lick 50 Viking landers 50 Enceladus flybys 50 robotic rovers 50 Dyna Soar 50 LCLS 50 Cosmic Background Explorer COBE 50 Giovanni Cassini 50 ESA GOCE 50 laser altimeter 50 THEMIS 50 optical interferometry 50 NASA WMAP 50 Ranging spacecraft 50 planetary missions 49 WMAP 49 Ariane rocket 49 Voyager probes 49 Magnetospheric 49 Huygens 49 KAGUYA 49 gradiometer 49 Comet Halley 49 NASA ICESat 49 Reconnaissance Orbiter 49 Planetary Camera 2 49 EPOXI mission 49 Epoxi 49 infrared astronomy 49 NASA Kepler telescope 49 Foton spacecraft 49 X ray telescopes 49 NASA Orbiting Carbon 49 Laser Interferometer Space 49 NASA COBE satellite 49 NASA Goddard 49 NASA Kepler 49 orbiting Saturn 49 IceCube 49 Lunokhod 49 NFIRE 49 infrared telescopes 49 Nasa Kepler 49 radar altimeter 49 Rosetta spacecraft 49 Continuity Mission LDCM 49 protoplanet 49 proton proton collisions 49 flyby spacecraft 49 VIRTIS 49 Magnetic Imager HMI 49 Explorer WISE 49 shepherding spacecraft 49 Heterodyne Instrument 49 Crab Pulsar 49 NASA Great Observatories 49 LAGEOS 49 Saturnian system 49 reusable spacecraft 49 Earth orbiting satellites 49 Saturn Cassini 49 RADARSAT 2 49 Mars rover 49 Comet Hartley 2 49 JDEM 49 Spitzer infrared spectrograph 49 asteroid Eros 49 Globalstar satellites 49 lunar landers 49 Big Bang Machine 49 Gamma ray burst 49 Kepler #b 49 CryoSat satellite 49 Fermi Gamma ray 49 Saturn rings 49 STORRM 49 extravehicular activities 49 KamLAND 49 Doppler measurements 49 smallest exoplanet 49 dexterous robot 49 Faint Object 49 Hubble observations 49 Space Telescope 49 Adaptive Optics 49 Mars Pathfinder lander 49 Mars Reconnaissance Orbiter 49 Adaptive optics 49 Space Shuttle 49 Astrosat 49 radial velocity measurements 49 NASA Voyager spacecraft 49 GOES R 49 uncrewed 49 PPARC 49 Sample Return 49 Great Observatories 49 exobiology 49 COSMO SkyMed 49 PSR J# 49 spacecrafts 49 supersymmetric particles 49 Satellites GOES 49 Foton M3 49 Substorms mission 49 deorbiting 49 Outer Planets 49 Mars Orbiter 49 ESOC 49 IKAROS 49 visit http:/saturn.jpl.nasa.gov 49 CoRoT 49 Phoenix Microscopy Electrochemistry 49 lunar explorer 49 adaptive optics 49 twin STEREO spacecraft 49 Eric Becklin 49 Synthetic Aperture Radar 49 Satish Dhawan Space 49 GeneSat 1 49 Moon Mineralogy Mapper 49 Epsilon Aurigae 49 Atlas IIAS 49 Atlantis Undocks From 49 NASA MESSENGER spacecraft 49 NEOSSat 49 PSLV C# 49 ESA Envisat 49 Galaxy Evolution 49 Comet Churyumov Gerasimenko 49 irregularly shaped asteroid 49 e VLBI 49 Mars Reconnaissance Orbiter MRO 49 Chandrayan 49 windshield wiper maneuver 49 Atlas 2AS 49 Fomalhaut b 49 closest flyby 49 Galileo satellites 49 Lagrangian 49 outer planets 49 Martian rovers 49 Chandrayaan II 49 ESAS 49 Kuiper belt objects 49 GOES N 49 NAVSTAR Global Positioning System 48 Higgs bosons 48 Pilot George Zamka 48 Comet Tempel 1 48 orbiting 48 Mars orbiter 48 Prof. Hawking 48 Cosmic Origins Spectrograph COS 48 Gravitational lensing 48 NASA Lunar Prospector 48 HiRISE image 48 Gerhard Schwehm 48 Mini TES 48 Advanced LIGO 48 Keck Observatory 48 INSAT 3D 48 JAXA 48 general relativity 48 Delfi C3 48 deorbit burn 48 LCROSS Lunar Crater Observation 48 GOSAT 48 Kibo JPM JEM Pressurized 48 Michelson Morley 48 Rockot 48 SSETI Express 48 Ares IY 48 SSMEs 48 Multi Object Spectrometer 48 RS Ophiuchi 48 Robotic Arm 48 Landsat satellites 48 Satish Dhawan 48 NASA Tropical Rainfall 48 Cassini orbiter 48 Shuttle Endeavor 48 Delta Cephei 48 neutrino oscillation 48 Jodrell Bank 48 Robotic Exploration 48 Lunar Laser Ranging 48 Space Propulsion 48 Planetary Fourier Spectrometer PFS 48 unmanned probes 48 scramjet engine 48 Mars moon Phobos 48 Galilean satellites 48 particle physics experiments 48 Chang'eI 48 SeaWiFS 48 GRB # 48 retrograde orbit 48 Mission TRMM 48 particle colliders 48 SpaceLoft XL 48 XMM Newton satellite 48 Lunar Prospector 48 Mossbauer spectrometer 48 twin Voyager spacecraft 48 Ocean Salinity 48 Dean Pesnell 48 proton decay 48 Late Heavy Bombardment 48 aboard Atlantis 48 microlensing events 48 asteroid Lutetia 48 weather satellite TIROS 48 Kepler Space Telescope 48 celestial observations 48 Nasa Jet Propulsion 48 Metop 48 GeneSat 48 NASA Interstellar Boundary 48 Taurus XL 48 LHC experiments 48 Director Charles Elachi 48 THEMIS Images 48 unmanned spacecraft 48 astronomical observations 48 COBE 48 polar orbiting 48 gamma ray spectrometer 48 Kepler Telescope 48 GJ #b [001] 48 asteroid Itokawa 48 cosmic strings 48 Space Telescope GLAST 48 ultraviolet spectrograph 48 VIIRS 48 enters lunar orbit 48 CHIPSat 48 COROT 7b 48 Spacecraft 48 gravitational redshift 48 Higgs particle 48 airborne particles affect 48 Opportunity rover 48 telescope atop Mauna 48 UVOT 48 distant supernovae 48 Deep Impact mission 48 Kepler 9c 48 E ELT 48 Minotaur rocket 48 ExoMars rover 48 Panoramic Survey 48 Ray Spectrometer 48 GRACE satellites 48 NASA Cassini spacecraft 48 Decadal Survey 48 Cassini 48 photometer 48 orbiting Hubble telescope 48 Kepler observatory 48 cosmic ray 48 STEREO spacecraft 48 Lunar CRater Observation 48 asteroids Ceres 48 Yarkovsky effect 48 CERN LHC 48 NICMOS observations 48 Orion Launch Abort 48 Cosmic Origins Spectrograph 48 SN #A 48 PSLV C7 48 GPS 2R 48 ChemCam 48 Jay Melosh 48 ATLAS detector 48 attosecond 48 Oscillations 48 Pluto Charon 48 planet Gliese #g 48 Hadron Collider 48 Launch Abort System 48 scatterometer 48 GSLV D3 rocket 48 ARISSat 48 Spaceguard Survey 48 Mars Lander 48 scramjet 48 parachutes malfunctioned 48 Space Shuttle STS 48 STSS Demo 48 SIRAL 48 Martian rover 48 KSLV 1 48 magnetar 48 Autonomous Rendezvous Technology 48 Submillimeter Array 48 lunar orbit 48 Lunar Module 48 CryoSat 48 C1XS 48 Heliophysics 48 Investigation DIXI 48 Craig Tooley LRO 48 VLBI 48 Field Planetary Camera 48 Viking orbiters 48 frequency comb 48 Foton M3 mission 47 Infrared Camera 47 Total Ozone Mapping 47 SPACE SHUTTLE 47 noctilucent clouds 47 Jet Propulsion Laboratory 47 particle detectors 47 Professor Hawking 47 Chairman G Madhavan 47 stellar occultations 47 NOAA GOES 47 relativity theory 47 Adam Riess 47 Grammier 47 orbiting spacecraft 47 NASA Cassini 47 Solar Sail 47 Nasa Mars Reconnaissance 47 Vostok spacecraft 47 GRAIL 47 Hubble gyroscopes 47 cosmological theories 47 Orbiting Carbon Observatory OCO 47 Moon Mineralogy Mapper M3 47 rover Sojourner 47 Huygens descent 47 neutrino physics 47 Optical Spectroscopic 47 Mars Opportunity rover 47 Analytical Engine 47 NASA EPOXI mission 47 entered lunar orbit 47 astrophysicists 47 binary asteroid 47 geosynchronous 47 highly elliptical orbit 47 Martian microbes exist 47 Shuttle astronaut 47 NASA Jet Propulsion Lab 47 ADM Aeolus 47 lunar module Eagle 47 Rex Geveden 47 Hyper X 47 nanosatellites 47 innermost planet 47 powerful particle accelerator 47 Collider LHC 47 NASA Kepler spacecraft 47 ESO telescopes 47 starboard SARJ 47 supercomputer simulations 47 Grote Reber 47 Toutatis 47 Huygens lander 47 Kaguya 47 COBE satellite 47 Subaru telescope 47 Wilkinson Microwave Probe 47 ESA SMOS 47 Messenger spacecraft 47 lander 47 Caltech Jet Propulsion 47 BSAT 3a 47 Benthic Rover 47 TerraSAR X 47 Uninhabited Aerial Vehicle 47 Hinode 47 retroreflector 47 Shuttle Atlantis blasts 47 Stardust NExT 47 radar interferometry 47 Pancam 47 reionization 47 BaBar 47 Mars Atmosphere 47 Cometary 47 Shenzhou spacecraft 47 rovers Spirit 47 SINFONI 47 radiometric measurements 47 dimensional visualization 47 Reusable Launch Vehicle 47 J# +# [002] 47 OSIRIS Rex 47 Orbiter 47 Nanosatellite 47 comet chaser 47 ROSAT 47 Glonass satellites 47 Space Telescope Imaging Spectrograph 47 Astrophysical 47 EPOXI spacecraft 47 planets orbits 47 Jean Luc Margot 47 BBSNews #-#-# NASA 47 Herschel Space 47 manned lunar 47 Mini SAR 47 Extrasolar Planet Observation 47 meter Keck telescopes 47 jovian 47 MESSENGER 47 shuttle Endeavour STS 47 Polar Lander 47 Shuttle Docks 47 filamentary structure 47 YORP effect 47 orbital observatory 47 orbited Jupiter 47 quantum entanglement 47 unmanned spaceplane 47 Block 5D 47 Erwin Schrodinger 47 P/# A2 47 Satellite GOSAT 47 geo stationary orbit 47 geoneutrinos 47 AEHF satellite 47 Erik Asphaug 47 Kuiper Belt object 47 Hubble Near Infrared 47 Landsat Data 47 Gerard Kuiper 47 Diviner instrument 47 Kuiper belt object 47 PASADENA Calif. NASA 47 outermost planets 47 PSLV C# rocket 47 Titan flybys 47 space shuttle 47 LUNAR 47 Sun synchronous orbit 47 Eurobot 47 Facility SIRTF 47 Cosmic Evolution 47 Orbiters 47 LSAM 47 NASA Gamma ray 47 MINOS 47 Upsilon Andromedae 47 NASA Chandra 47 Lovell Telescope 47 Neutral Mass Spectrometer 47 GPS IIR 47 Pad Abort 1 47 X ray observatories 47 Discovery undocks 47 ROCSAT 2 47 field Infrared Survey 47 INSAT 4CR 47 EarthCARE 47 comet nucleus 47 Extrasolar Planets 47 HEO payload 47 gamma ray burst 47 Lunar Orbit 47 KIPAC 47 occultations 47 http:/saturn.jpl.nasa.gov 47 Lunar Exploration 47 TIROS 47 Mike Leinbach shuttle 47 Space Capsule 47 orbiting Mars 47 Lunar Rover 47 Mars Spirit rover 47 CubeSats 47 GEO# 47 SMEX 47 optical telescope 47 Geostationary Operational Environmental 47 Stadermann 47 rover Spirit 47 Envisat satellites 47 Alpha Particle 47 Composite Infrared Spectrometer 47 HIAPER 47 orbital maneuvers 47 comet flyby 47 GLAST telescope 47 Einstein equations 47 DZero 47 extrasolar planet 47 ARES IX 47 Tevatron experiments 47 Esrange 47 THEMIS Image 47 gravitational wave 46 AMASE 46 Beta Pictoris b 46 Steins asteroid 46 spacecraft Hayabusa 46 Japanese Aerospace Exploration 46 vomit comet 46 MN4 46 NEOWISE 46 interferometer 46 STP S# 46 Multi Object Spectrograph 46 ESA Proba 46 astronomers 46 Manned Spacecraft Center 46 radar altimetry 46 OGLE TR #b 46 RQ# 46 radial velocity technique 46 Heliospheric Observatory SOHO 46 STPSat 46 Atlantis STS 46 satellites orbiting Earth 46 LHCb 46 Microscopy Electrochemistry 46 TacSat 46 superheavy elements 46 substorms 46 AMPERE 46 galaxy M# [001] 46 microshutters 46 Carnegie Observatories 46 LightSail 1 46 inhabitable planets 46 infrared spectrograph 46 heaviest payloads 46 WK2 46 Mars landers 46 Mars Color Imager 46 GLAST 46 Airborne Laser Testbed 46 ESA Huygens 46 Kuiper Belt Object 46 Zenit 3SL rocket 46 ARGUS IR 46 Fritz Zwicky 46 planet gravitational tug 46 twin rover Opportunity 46 manned lunar landing 46 aerobraking 46 Neil Gehrels 46 MTSAT 1R 46 Resourcesat 2 46 linear collider 46 duration spaceflight 46 hydrogen maser 46 Planck telescope 46 spectroscopic observations 46 trans Neptunian objects 46 Hipparcos 46 Solar Observatory 46 Voyager Galileo 46 Deep Impact comet 46 heavily instrumented 46 spacecraft orbiting 46 PSLV C 46 Cosmic Vision 46 cosmic cannibal 46 ray Space Telescope 46 SOHO spacecraft 46 Mars rover Opportunity 46 LADEE 46 UAVSAR 46 perilune 46 Geosynchronous 46 Pegasus XL 46 Infrared Array Camera 46 Bullet Cluster 46 WFC3 46 specialists Scott Parazynski 46 Hinode spacecraft 46 eclipsing binary 46 RazakSAT 46 NASA Spirit rover 46 MESSENGER MErcury Surface 46 ESA ESTEC 46 Fregat upper stage 46 asteroid Steins 46 Spirit rover 46 Main Injector Neutrino 46 particle beam 46 Volatile Evolution 46 Hubble Constant 46 lunar orbiter 46 WISE telescope 46 gamma ray observatories 46 HIRES spectrometer 46 lunar missions 46 probe Chang'e 46 IceCube Neutrino Observatory 46 JPL 46 Conductivity Analyzer MECA 46 antimatter particles 46 Cassini Huygens Mission 46 Express orbiter 46 Mars Odyssey spacecraft 46 Space Physics 46 lunar orbiting spacecraft 46 reconnaissance orbiter 46 telescopic observations 46 Fermi Telescope 46 SBIRS HEO 46 NASA Infrared Telescope 46 quantum electrodynamics 46 rocky extrasolar planet 46 Bernard Foing 46 Lunar Crater Observation 46 comet particles 46 lunar meteorites 46 Descent Imager Spectral Radiometer 46 Mars Phobos 46 Infrared Astronomical Satellite IRAS 46 deorbit 46 ESA CryoSat 46 CARTOSAT 46 Impactor 46 orbital velocity 46 LASP 46 pressurized module 46 remote sensing satellite Resourcesat 46 JIMO mission 46 neutrino detectors 46 Spectroscopic Explorer 46 Megha Tropiques 46 robotic Canadarm 46 superstrings 46 Shuttle Discovery 46 director Charles Elachi 46 spectrograph 46 ill fated Beagle 46 exoplanet hunter 46 orbiter lander 46 Tunguska asteroid 46 Comet Hartley 46 spectroscopically 46 TU# [002] 46 infrared spectrometers 46 Orion spacecraft 46 stratospheric balloon 46 ALMA antennas 46 Corot 7b 46 Landsat satellite 46 microlensing 46 CU Boulder LASP 46 Shuttle Endeavour 46 Skynet 5C 46 Wideband Global 46 superheated gases surrounding 46 Hawking radiation 46 NIRCam 46 radial velocity method 46 urine recycler 46 electron orbits 46 GJ#b 46 SN #C 46 lunar perigee 46 SpaceX Falcon 9 46 Collider Detector 46 DEIMOS 46 Crew Launch Vehicle 46 EGRET 46 Solar Terrestrial Relations 46 Exoplanet 46 Horizons spacecraft 46 Mars CRISM 46 onboard Chandrayaan 46 Glonass navigation satellites 46 Comet Lulin 46 NextSat 46 particle detector 46 LOFAR 46 BLG #Lb 46 Deep Impact Extended 46 Cosmological 46 comet Boethin 46 orbiters 46 astronomer Johannes Kepler 46 boson 46 Envisat 46 CoRoT satellite 46 geo synchronous transfer 46 radiotelescope 46 meteoroid 46 scientist Anthony Colaprete 46 Carl Marchetto 46 Imaging Spectrometer 46 extrasolar planets 46 Large Electron Positron 46 superlens 46 Spacewalker 46 Burst Alert 46 cosmologists 46 Solid Rocket Boosters 46 Gliese #c 46 MISSE 46 Lunar Orbiter Laser Altimeter