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(Click for frequent words.) 69 planets orbiting stars 68 planets circling stars 65 exoplanets planets 64 distant supernovas 64 innermost planet 64 extrasolar planets orbiting 63 smallest exoplanet 63 planets astronomers 62 wow Fincke 62 exo planets 61 inhabitable planets 60 Kuiper Belt Object 60 planets orbiting distant 60 exoplanets 60 Fermi telescope 60 planets orbiting sun 60 Kuiper Belt Objects 60 Kuiper belt objects 60 smallest exoplanets 60 CoRoT 9b 60 Heliospheric Observatory SOHO 59 Corot 7b 59 Gamma ray bursts 59 Earthlike planets 59 Gliese #c 59 extrasolar 58 sized planets orbiting 58 hunting Kepler telescope 58 Beta Pictoris b 58 habitable worlds 58 Earthlike planet 58 Gliese #G 58 extrasolar planet 58 habitable planets 58 extrasolar worlds 58 sunlike stars 57 moons circling 57 stellar occultations 57 please visit http:/www.firstsolar.com 57 Dynamics Observatory 57 Samuel Oschin Telescope 57 extrasolar planets 57 Heliospheric Observatory 57 Astrological lore 57 largest moon Charon 57 Upsilon Andromedae 57 retrograde orbits 57 HD# [002] 57 Galactic cosmic rays 57 transiting planets 57 Kepler #b 57 Cygnus Lyra region 57 gamma ray observatory 57 habitable planet 57 Upsilon Andromedae b 57 Stephan Quintet 57 planet Gliese #g 57 outermost planet 56 interstellar dust particles 56 potentially habitable 56 moon Enceladus 56 plutoids 56 IntergalaticEarth 56 Studying comets 56 moons orbiting 56 potentially habitable planets 56 Starz Pillars 56 comets orbiting 56 Epsilon Eridani 56 Vourlidas 56 exoplanetary 55 planets 55 CoRoT #b 55 Fomalhaut b 55 Mars Uranus Neptune 55 asteroids comets 55 Oort Cloud 55 coronal loops 55 Inc FSLR FSLR 55 Galilean moons 55 exo planet 55 Earthlike 55 atmospheric neutrinos 55 unmanned probes 55 Goldilocks planet 55 Gravitational waves 55 aurorae 55 planemos 55 exoplanets orbiting 55 astronomer Clyde Tombaugh 55 astronomical objects 55 Ian McShane Pillars 55 mu Arae 55 outer planets 55 frozen sunless 55 Exoplanets 55 extrasolar planetary systems 55 TGFs 55 interstellar boundary 55 planetary Transits 55 Envision Solar www.envisionsolar.com 55 magnetars 55 Nasa Kepler 55 super Earths 55 Kepler 9c 54 interplanetary spacecraft 54 planets comets 54 star Gliese 54 Kuiper belt 54 GJ #b [001] 54 BLG #Lb 54 BLG #L 54 mother Rivarde 54 GJ#b 54 Venus Neptune Uranus 54 MG J# +# 54 Oort cloud 54 X ray wavelengths 54 icy comets 54 RRATs 54 Milky Way Galaxy 54 primordial ingredients 54 sunlike star 54 trans Neptunian objects 54 lightest exoplanet 54 rocky extrasolar planet 54 brightest supernova 54 orbiting observatories 54 Inc CSIQ CSIQ 54 gravitational microlensing 54 dimming starlight 54 dustier stormier atmosphere 54 submillimetre wavelengths 54 smoothest flattest spot 54 millisecond pulsar 54 Neptune Uranus 54 galactic cosmic rays 54 Aurigid 54 binary asteroid 54 Saturn Enceladus 54 Saturn Cassini 54 Kuiper Belt object 54 visit http:/saturn.jpl.nasa.gov 54 electron neutrinos 54 Libra constellation Vogt 54 KBOs 54 VB #b 53 Extreme Ultraviolet Variability Experiment 53 Solar TErrestrial RElations Observatory 53 zodiacal dust 53 Cancri e 53 fainter objects 53 Uranus Neptune 53 Evolution Explorer 53 Pluto Eris 53 auroral displays 53 Neptune Jupiter 53 periodic dimming 53 BP Psc 53 Jupiter icy moons 53 Beta Pictoris 53 WASP #b 53 Cancri 53 HD#b 53 Solar System 53 retrograde orbit 53 Saturn innermost 53 Proxima Centauri 53 G#.# +#.# 53 planets constellations 53 smallest extrasolar planet 53 distant galaxy clusters 53 Voyager spacecraft flew 53 www.firstsolar.com media 53 Konacki 53 Rosette Nebula 53 planets orbiting 53 OGLE TR #b 53 Pluto Charon 53 luminous galaxies 53 Comet Elenin 53 Comet Holmes 53 thermal insulation coatings 53 GJ #b [002] 53 Gliese 53 Uranus Jupiter 53 COROT exo 3b 53 Super Earths 53 interstellar cloud 53 millisecond pulsars 53 energetic electrons 53 unexplored frontier 52 Group SolarTech 52 comets asteroids 52 Dynamics Observatory SDO 52 interstellar grains 52 Fermi Telescope 52 orbiting Kepler telescope 52 Gliese #e 52 Extrasolar planets 52 protoplanetary disks 52 Wiccans worship 52 tholins 52 distant supernovae 52 Exoplanet 52 solar corona 52 constellation Lacerta 52 COROT 52 smallest exoplanet ever 52 terrestrial planets 52 Cosmic Microwave Background 52 Kuiper Belt objects 52 protoplanetary 52 parabolic trough concentrating 52 distant galaxies 52 Corot 9b 52 HD #b [002] 52 Quadrantids 52 AGNs 52 icy moons 52 Perseus Cluster 52 Fashion Movie Reviews 52 Avishay Gal Yam 52 Descent Imager Spectral Radiometer 52 radioactive nuclei 52 SN #gy 52 cosmic cannibal 52 dust enshrouded 52 coronal holes 52 ecliptic plane 52 GLAST telescope 52 Orion Nebula 52 wind biomass geothermal 52 energetic cosmic rays 52 NASA Kepler spacecraft 52 shiniest object 52 Antennae Galaxies 52 Alycia Weinberger 52 buckypaper virtually 52 planet orbiting 52 visit http:/www.InvestorXchange.com/ 52 Jupiter Saturn Uranus 52 coronal mass ejections CMEs 52 XO 3b 52 HIP #b 52 discover Fomalhaut 52 rocky planets 52 Jupiter moon Io 52 habitable zones 52 Mars Uranus 52 giant gaseous planets 52 carbonaceous chondrites 52 distant galaxy 52 Comet Lulin 52 COROT 7b 52 thrilling stargazers 52 exoplanet orbiting 52 distant quasars 52 whiz harmlessly 52 TNOs 52 GoSolarUSA identifies 52 HL Tau 51 interstellar dust clouds 51 Wilkinson Microwave Probe 51 Becky Ramotowski 51 Charon Pluto 51 proplyds 51 Wolszczan 51 Coma Cluster 51 twin Voyager spacecraft 51 Martians invading 51 Orionid 51 assumed planets circling 51 radial velocity technique 51 interstellar dust grains 51 Sasselov 51 moons orbiting Saturn 51 planet Uranus 51 www.firstsolar.com 51 ESA Integral 51 microlensing technique 51 binary asteroids 51 moons Phobos 51 Muchachos Observatory 51 galaxy M# [001] 51 supernovae explode 51 supersymmetric particles 51 Frederic Pont 51 Taurus Littrow Valley 51 concentrator photovoltaics 51 HiRISE camera aboard 51 supergiant star 51 NASA Kepler 51 outer corona 51 Venus Jupiter Uranus 51 heliopause 51 stellar nurseries 51 Bug Nebula 51 gaseous planets 51 microlensing events 51 meteoroid impacts 51 NASDAQ SPWRA NASDAQ SPWRB 51 planetary nebulae 51 Manned missions 51 Nikku Madhusudhan 51 Orionids 51 J# +# [002] 51 candlelight firelight 51 geothermal tidal 51 Kuiper Belt 51 comet Tempel Tuttle 51 Carbon nanotubes CNTs 51 Butterfly Nebula 51 AU Mic 51 airglow 51 orbiting gamma ray 51 constellation Vulpecula 51 #P/Churyumov-Gerasimenko 51 Higgs bosons 51 Ringed Planet 51 NASA STEREO 51 Mars Saturn Uranus 51 HESS telescopes 51 gravitational lenses 51 super perigee moon 51 Great Observatories 51 Jupiter Saturn 51 Milky Way galaxy 51 brown dwarfs 51 eIQ Energy Parallel 51 interstellar particles 51 X ray binaries 51 noctilucent clouds 51 Alfven waves 51 Mars Jupiter Uranus 51 transiting exoplanet 51 Spitzer Space Telescopes 51 TrES 4 51 planet HD #b 51 CERN experiments 51 comet McNaught 51 planets Uranus 51 pulsars 51 Mars Neptune Uranus 51 Dean Pesnell 51 Nasdaq SPWRA SPWRB designs 51 celestial objects 51 Saturn moons Enceladus 51 planetary conjunctions 51 hypervelocity stars 51 circumstellar disks 51 Venus Uranus 51 Saturn outermost ring 51 HARPS instrument 51 Arches Cluster 51 comet Lulin 50 hot Jupiters 50 planet 50 ray Space Telescope 50 biogas biomass 50 CoRoT satellite 50 windshield wiper maneuver 50 Kepler Mission 50 Magnetars 50 evolve Borucki 50 exosolar planets 50 occultations 50 rotating neutron stars 50 spaceweather.com 50 star clusters nebulae 50 unaided eye 50 polarimetry 50 XMM Newton X ray 50 SIRTF 50 Coma cluster 50 Cosmic rays 50 Comet Tempel Tuttle 50 Kuiper belt object 50 GALEX 50 Kuiper belt disc 50 PASADENA Calif. Astronomers 50 Wide Angle Search 50 nicknamed Xena 50 Cassini flyby 50 twin STEREO spacecraft 50 Gamma ray burst 50 backsheet materials 50 Galaxy Evolution 50 exosphere 50 Galilean satellites 50 eyepiece #/#s f/#.# 50 Extrasolar 50 eccentric orbits 50 spinning neutron stars 50 exoplanet atmospheres 50 Jupiter Ganymede 50 Kepler Space Telescope 50 planets circling 50 Planck satellite 50 gravitational perturbations 50 Ulysses spacecraft 50 Henize #-# 50 Mercury Uranus 50 Phil Schewe spokesman 50 dirty snowballs 50 Drake Deming 50 ultraviolet wavelengths 50 Douglas Wheelock apprised 50 WISE spacecraft 50 photosphere 50 Bok globules 50 Giovanni Cassini 50 Voyager Galileo 50 Trapezium 50 Saturn Uranus Neptune 50 interstellar molecules 50 Comet Hale Bopp 50 PSR J# 50 Hot Jupiters 50 active galactic nucleus 50 ESA Herschel 50 limbo Len Gengel 50 Amateur astronomers 50 Annette Tombaugh Sitze 50 planets atmospheres 50 axions 50 Neptune Uranus Jupiter 50 Orionid meteors 50 Visit SPACE.com 50 Mandushev 50 markets String Ribbon 50 gaseous planet 50 subsurface ocean 50 southeast glacial fjords 50 Hubble Space Telescope HST 50 Gamma rays 50 asteroidal 50 ESA Planck 50 undiscovered particle 50 van Arkel discovery 50 Eta Carinae 50 missing baryons 50 exoplanetary systems 50 Malcolm Fridlund 50 Eagle Nebula 50 GRB #A 49 trumped Begley 49 Thick smoke obscured 49 Fermi Gamma ray 49 reionization 49 Svedhem 49 solar 49 Solar Dynamics Observatory 49 permanently shadowed craters 49 substorms 49 extragalactic 49 driest continents 49 IRAS #-# 49 Mercury magnetosphere 49 Panoramic Survey 49 planetary embryos 49 Hollywood dreck Battlefield 49 Conergy AG CGY GY 49 Diviner instrument 49 globulars 49 gravitationally lensed 49 supergiant stars 49 Cat Paw Nebula 49 Herschel Space 49 Andromeda Galaxy 49 RedlineChina web site 49 globular star 49 geomicrobiology studying particles 49 N. Rathnasree 49 elongated orbits 49 XMM Newton 49 THEMIS satellites 49 Pieter van Dokkum 49 comets 49 Earthly contamination 49 ringed planet 49 proto galaxies 49 cosmic rays collide 49 cosmic ray collisions 49 Zeta Ophiuchi 49 SpaceWeather.com 49 constellation Eridanus 49 Saturn moon Mimas 49 Planetary Transits 49 comets meteors 49 SIM PlanetQuest 49 jovian 49 Inc. www.envisionsolar.com OTCBB 49 spherical halo 49 TSN PZ camera 49 extrasolar planetary 49 southern supercontinent 49 galaxy 49 solar nebula 49 earthlike planets 49 constellation Carina 49 Plutoids 49 magnetar 49 Director Charles Elachi 49 Lunar eclipses 49 mysterious uncharted 49 Io Europa 49 VIRTIS instrument 49 submillimeter wavelengths 49 sauropod skulls 49 exoplanet 49 polar mesospheric clouds 49 unexplored northern latitudes 49 earthshine 49 HARPS spectrograph attached 49 cosmological distances 49 Titan Saturn 49 Comet Hartley 2 49 Alfvén waves 49 VISTA telescope 49 Comet LINEAR 49 TGI Solar TSPG 49 cosmic phenomena 49 sub millimeter wavelengths 49 SINFONI 49 Atacama Large Millimeter submillimeter 49 RS Ophiuchi 49 prince william engagement 49 submillimeter wavelength 49 gallium arsenide cells 49 Epsilon Aurigae 49 proto cluster 49 Saturn magnetosphere 49 UDFy # 49 asteroids orbiting 49 shadowy craters 49 Meteor Showers 49 GRB #B 49 GQ Lupi 49 X ray afterglow 49 Solarworld AG SWV GY 49 RXTE 49 awarded manned spaceship 49 galactic mergers 49 trap antimatter atoms 49 Comet Machholz 49 elliptical orbits 49 LADEE 49 Dhanu Rashi 49 crystalline silicates 49 Microlensing 49 Perseid shower 49 HAT P 49 planetary nebula 49 Kepler discoveries 49 filamentary structure 49 gamma ray flares 49 Large Magellanic Cloud 49 Comet Halley 49 brightest comet 49 journal Meteoritics 49 lunar meteorites 49 orbiting Chandra 49 Orion nebula 49 Geminga 49 Dwarf Planet 49 planetary nebulas 49 HD #b [001] 49 protons collide 49 infrared spectrometers 49 submillimeter galaxies 48 RHESSI 48 brown dwarf 48 highly elliptical orbits 48 Great Orion Nebula 48 Astronomers Find 48 planet magnetosphere 48 spiral nebulae 48 Jovian moons 48 magnetospheres 48 NASA THEMIS 48 gory spectacles 48 graphite whiskers 48 cosmic ray particles 48 Omega Nebula 48 merging galaxies 48 protoplanet 48 astrophysical phenomena 48 planets moons 48 chromosphere 48 active galactic nuclei 48 MicroFUN 48 Olympus Mons 48 Muons 48 Nasdaq SPWRA 48 http:/saturn.jpl.nasa.gov 48 Taurids 48 Makemake 48 Quadrantid meteor shower 48 cosmological theories 48 Martian meteorites 48 asteroid collisions 48 chondrites 48 website http:/www.aarp.org 48 RQ# 48 Goldilocks zone 48 sextillion stars 48 NASA Far Ultraviolet 48 afterglows 48 Solar Orbiter 48 gamma ray photons 48 supernova explosion 48 Original Song Down 48 Triangulum Galaxy 48 constellation Aquarius 48 Extrasolar Planet 48 STEREO spacecraft 48 Greenbelt Md. manages 48 GRBs 48 lowest levelized 48 muon neutrinos 48 constellation Aquila 48 Hanny Voorwerp 48 GeoSpring ™ hybrid 48 concentrating photovoltaics CPV 48 Intrinsic Thin layer 48 Follett Pillars 48 RPWS 48 transiting planet 48 technology visit www.energyconnectinc.com 48 protostars 48 Wolf Rayet stars 48 Orientale Basin 48 Eta Aquarid meteor shower 48 warmest friendliest 48 Saturn rings 48 Peter Eisenhardt 48 coronal heating 48 Pan STARRS 48 Lunine 48 GZK cutoff 48 Kepler observatory 48 Atlantis Undocks From 48 heliocentric model 48 spokesman Alan Bernheimer 48 Total lunar eclipses 48 Dan Buhl Planetarium 48 coronal mass ejections 48 baryon 48 SuperWASP 48 Cometary 48 Astronomy buffs 48 chemical abundances 48 Heliospheric 48 asteroids WISE 48 Greenhouse gases trap 48 Europa Ganymede 48 constellation Hercules 48 Red Rectangle 48 Nasa spacecraft 48 interstellar dust 48 nebulae 48 Nelis Zuliastri 48 Geminid shower 48 Laser Interferometer Space 48 supernova remnants 48 microquasar 48 SN #A 48 zodiacal light 48 Bruce Banerdt 48 Solar flares 48 type Ia supernova 48 Warmer harvests 48 Amorfix utilizes 48 moons 48 spatially resolved 48 Gliese #g 48 geothermal hydro 48 constellation Ursa Major 48 Ultraviolet radiation 48 Planck spacecraft 48 Globular clusters 48 Kepler Telescope 48 William Borucki 48 planetary orbits 48 dynamical processes 48 X ray Imager SXI 48 Lyrids 48 constellation Perseus 48 extraterrestrial civilizations 48 2MASS 48 TrES 48 protoplanetary disk 48 constellation Centaurus 48 Ionosphere Sounding 48 Perseids 48 uncovering geologic 48 comets moons 48 lunar perigee 48 #/#-ton truss 48 mega vertebrate 48 Optical Spectroscopic 48 Astronomers Discover 48 Convection Rotation 48 radiotelescope 48 By RODNEY WILLIAMS 48 lunar eclipses 48 Phoebe orbits 48 noctilucent 48 Anthony Remijan 48 Nabors participates 48 Saturnian system 48 telescope Uranus 48 Extrasolar Planets 48 barred spiral galaxy 47 orbited Jupiter 47 X ray binary 47 red supergiants 47 Martian dust 47 spectroscopic observations 47 meteor showers 47 ebullient Ohno 47 MINOS experiment 47 hurricane Rubiera 47 Omega Centauri 47 single celled microorganisms 47 auroras 47 radiometers 47 Andromeda galaxy 47 SMBHs 47 Martian rovers 47 Io Europa Ganymede 47 tanker Anwaar 47 crab larvae plucked 47 matter antimatter asymmetry 47 Ring Nebula 47 antineutrinos 47 supermassive 47 microshutters 47 magnetic substorms 47 Dennis L. Jilot 47 neutron spectrometer 47 dusty disks 47 photosynthetic organisms 47 chondrules 47 Bernhard Fleck 47 planets asteroids 47 Crab Pulsar 47 Deep Impact eXtended Investigation 47 Saturn aurora 47 constellation Pegasus 47 Puppis 47 planet Nibiru 47 planets orbits 47 moon Charon 47 David Pilbeam curator 47 greatest insect emergences 47 protoplanetary discs 47 CoRoT 7b 47 inner Oort Cloud 47 Venusian atmosphere 47 Neutron stars 47 dwarf galaxies 47 Lulin 47 glowing corona 47 Boethin 47 skygazers 47 olivine mineral 47 starburst galaxies 47 joins rovers Spirit 47 Niclas Henricson head 47 constellation Lyra 47 neutralino 47 Crab Nebula 47 Gemini constellation 47 Project Ozma 47 submillimeter 47 Madhulika Guhathakurta 47 afterglows linger 47 star Proxima Centauri 47 best disinfectant Chernoff 47 gamma ray burst 47 align creator Joss 47 Mehdi Shehu 47 Laura Shovan 47 AB Aurigae 47 quasars 47 NASA Kepler telescope 47 Titan smoggy 47 Fomalhaut 47 Pluto Kuiper Belt 47 past boninite lavas 47 blazar 47 wind geothermal biogas 47 freedom Ellabarger 47 ROSAT 47 ion propulsion engines 47 Mars moon Phobos 47 located atop Mauna 47 Hubble Telescope 47 spacecraft flyby 47 planetary transits 47 biosignatures 47 proton proton collisions 47 Dwarf galaxies 47 Carina constellation 47 ESO VLT 47 Earths orbiting 47 NFIRE satellite 47 eclipsing binary 47 Robotic Exploration 47 IBEX spacecraft 47 Saturn Jupiter Uranus 47 Geza Gyuk 47 emit X rays 47 astrophysical objects 47 infrared wavelengths 47 constellation Andromeda 47 Weakly Interacting Massive Particles 47 website AARP.org 47 moon Ganymede 47 C. elegans roundworm 47 outermost planets 47 blazars 47 Gliese #d 47 NASA twin STEREO 47 found circling Gliese 47 astronomers 47 diffuse aurora 47 silicon monoxide 47 Earth asteroids 47 CMB radiation 47 Noctilucent clouds 47 Sedna 47 coldest driest 47 Pegasi b 47 superheavy elements 47 carbonate globules 47 SunPower Tracker ® 47 Bruce Jakosky 47 scarps indicating 47 CAIs 47 baryons 47 Earth axial tilt 47 terawatts 47 geoneutrinos 47 Comet Hartley 47 Lagoon Nebula 47 galaxies nebulae 47 interstellar clouds 47 magnetospheric 47 waxing crescent 47 lunar crust 47 constellation Cetus 47 HM Cancri 47 novas 47 Tycho Brahe observatory 47 Machholz 47 spiral galaxy Messier 47 ESA XMM Newton 47 Ontario Lacus 47 planetoids 47 meteor fireball 47 particle astrophysics 47 star Spica 47 Grillmair 47 Higgs boson particle 47 V# Sgr 47 type Ia supernovae 47 physics astrophysics 47 NASA orbiters circling 47 Helioseismic 47 primitive meteorites 47 Gerhard Schwehm 47 galactic cores 47 X ray observatory 47 SPWRA SPWRA 47 Kepler spacecraft 47 geomagnetic indices 47 solar insolation 47 JDEM 47 PlanetQuest 47 celestial sphere 47 Submillimeter Array 47 colliding galaxies 47 Geminid meteors 46 Eta Aquarids 46 ERDAS creates 46 String Ribbon ® 46 Seyfert galaxies 46 Leonid shower 46 Physics Wilhelm Röentgen 46 iowa hawkeye football 46 starburst galaxy 46 SN #D 46 distant suns 46 X ray emission 46 ESO PR 46 Comet Encke 46 ushers Marciani 46 UCL Mullard Space 46 eclipse shrouds 46 PUVA psoralen plus 46 R#a# 46 stellar seismology 46 X ray telescopes 46 visit www.nationalgeographic.com 46 cosmological observations 46 Guillermo Haro 46 Hubble Space telescope 46 equatorial regions 46 Rayleigh scattering 46 Geminid meteor shower 46 planet orbits 46 Spotted eagle 46 Chairman G Madhavan 46 Enceladus flybys 46 orbit GEO 46 robot rovers 46 globular cluster M# 46 intrinsic brightness 46 astronomical phenomena 46 southern constellation Carina 46 called gravitational microlensing 46 TODAY Showers 46 X rays gamma rays 46 Saturn moons 46 Grätzel cells 46 gamma ray telescope 46 horoscopes section 46 AmeriSolar brand 46 entire Milstar constellation 46 silicate grains 46 Tharsis Rise 46 Astronomers 46 Geminids 46 Delta Cephei 46 nebular 46 retroreflector 46 Solar Terrestrial Relations 46 Nibiru 46 moon Mimas 46 Spitzer infrared 46 terrestrial concentrator 46 Cepheid variables 46 Magnetospheric 46 cadmium sulphide 46 hydrated minerals 46 Plaxico Rosenhaus 46 Orion constellation 46 Type Ia supernovas 46 Jupiter Uranus 46 synchronous orbit 46 Higgs particle 46 NASA Fermi Gamma 46 Elenin 46 Voorwerp 46 plutoid 46 planetesimals 46 JPL manages 46 Tarantula Nebula 46 reionization epoch 46 Adam Riess 46 asteroseismology 46 geomagnetic activity 46 Sara Seager 46 S/# P2 46 constellation Canis Major 46 reflection nebula 46 Sagittarius Window Eclipsing 46 Smartest Machine 46 primordial galaxies 46 Tempel Tuttle 46 masers 46 radiation leaf wetness 46 EPOXI spacecraft 46 Zeebe 46 superclusters 46 Beta Centauri 46 constellation Cassiopeia 46 Mark N. Sirangelo 46 launch tweetup 46 VY Canis Majoris 46 WISE infrared 46 gamma ray bursts 46 pulsar 46 protostar 46 mesosphere 46 Spitzer infrared spectrograph 46 Halley Comet 46 P/# A2 46 red supergiant 46 waning gibbous 46 radial velocity method 46 neutralinos 46 NEAs 46 lunar orbits 46 IRC +# 46 Earth