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(Click for frequent words.) 72 Mercury exosphere 71 Mercury magnetosphere 69 Saturn magnetosphere 69 airglow 68 photosphere 68 galactic cosmic rays 68 Saturnian moon 67 jovian 67 magnetotail 67 lunar crust 67 Venusian atmosphere 66 galactic disk 66 martian atmosphere 66 magnetosphere 66 moon Io 66 elongated orbits 66 IBEX spacecraft 66 sodium atoms 66 moon Enceladus 66 Fomalhaut b 66 silicon monoxide 65 carbonate minerals 65 icy moons 65 silicate dust 65 solar corona 65 ultraviolet wavelengths 65 meteoritic material 65 magma ocean 65 Martian atmosphere 64 GJ #b [002] 64 interstellar dust grains 64 chromosphere 64 mesosphere 64 aerosol particles 64 Earth magnetosphere 64 circumstellar 64 Kuiper Belt Objects 64 hydroxyl molecules 64 heliosphere 64 extrasolar 64 gravitational interaction 63 smoggy atmosphere 63 polar vortex 63 Saturn moon Enceladus 63 subsurface ocean 63 cosmic ray particles 63 Upsilon Andromedae 63 circumstellar disk 63 Ulysses spacecraft 63 relativistic particles 63 Hot Jupiters 63 Jupiter magnetosphere 63 magnetospheric 63 GJ#b 63 ionized particles 63 planet magnetosphere 63 planetary Transits 63 icy comets 63 protoplanetary disk 63 ionized gas 63 Oort Cloud 63 upper troposphere 63 Kuiper belt objects 63 basaltic rocks 63 Galileo spacecraft 63 X ray emission 62 elongated orbit 62 elliptical orbits 62 Corot 7b 62 APXS 62 X ray wavelengths 62 interstellar clouds 62 retrograde orbit 62 KBOs 62 ejecta 62 comet nucleus 62 exoplanetary 62 asteroidal 62 synchronous orbit 62 hydrosphere 62 permanently shadowed craters 62 WASP #b 62 tholins 62 Cassini ion 62 moonlet 62 orbital resonance 62 proto planetary disk 62 highly elliptical orbit 62 cryovolcanism 62 sulfate aerosols 62 weakly interacting 62 crystalline silicates 62 interstellar medium 62 HD#b 61 moon Mimas 61 phyllosilicates 61 Earth ionosphere 61 Nasa spacecraft 61 filamentary structure 61 comets orbiting 61 polar craters 61 silicate rocks 61 gaseous planet 61 VY Canis Majoris 61 cosmic ray flux 61 electron neutrinos 61 planets orbits 61 mineral olivine 61 cometary dust 61 hematite mineral 61 interstellar particles 61 chondrules 61 Phoebe orbits 61 stellar occultation 61 galactic bulge 61 periodic dimming 61 GJ #b [001] 61 Syrtis Major 61 silicate minerals 61 Earthlike 61 volcanic moon Io 61 orbiting gamma ray 61 Jovian moon 61 coronal mass ejections CMEs 61 helium atoms 61 comets asteroids 61 jarosite 61 COROT 7b 61 silicates 61 water vapor 60 Bug Nebula 60 solar nebula 60 Jupiter moon Io 60 Alfven waves 60 spectral fingerprints 60 prograde 60 planetary nebulae 60 sunlike stars 60 Fermi telescope 60 Oort cloud 60 Saturn Cassini 60 cometary debris 60 spectroscopic analysis 60 asteroids comets 60 hydroxyl 60 Cancri e 60 gamma ray observatory 60 protoplanet 60 neutral mass spectrometer 60 Valles Marineris 60 Saturn moon 60 cosmological distances 60 noctilucent clouds 60 Mössbauer 60 potassium atoms 60 AU Mic 60 heliospheric 60 coronal loops 60 Kuiper Belt Object 60 ionosphere 60 Saturn rings 60 Gliese #c 60 cometary material 60 Saturn outermost ring 60 graphite whiskers 60 Kuiper Belt objects 60 spectroscopically 60 moons Europa 60 Saturn Enceladus 60 tropopause 60 meteoroids 60 NEAs 60 Comet Hartley 2 60 planetesimals 60 Samuel Oschin Telescope 60 Surface Composition Spectrometer 60 gaseous planets 60 sterile neutrino 60 ionise 60 Galilean moons 60 spherical halo 60 energetic electrons 60 intrinsic brightness 60 circumstellar disks 60 orbiting spacecraft 60 spatially resolved 59 sulfate aerosol 59 Earth radii 59 magnetopause 59 Epsilon Eridani 59 planetary transits 59 X ray binaries 59 Comet Halley 59 BLG #Lb 59 olivine mineral 59 Saturnian moon Titan 59 Jupiter Ganymede 59 highly elliptical orbits 59 albedo reflectivity 59 Saturn outermost 59 Evolution Explorer 59 spacecraft flyby 59 IRC +# 59 Cassini spacecraft orbiting 59 smallest exoplanet 59 RS Ophiuchi 59 carbonate globules 59 heliosheath 59 nebular 59 Saturn moon Mimas 59 silicate mantle 59 Enceladus 59 interstellar dust 59 impactors 59 Milky Way halo 59 thermosphere 59 Shackleton crater 59 orbits Saturn 59 primitive meteorites 59 Kuiper belt 59 RXTE 59 stratospheric clouds 59 moonlets 59 lunar craters 59 cosmic ray intensity 59 filamentary 59 Stephan Quintet 59 HARPS instrument 59 cometary 59 plagioclase 59 innermost planet 59 planet orbits 59 cosmic phenomena 59 orbital eccentricity 59 infrared spectra 59 X ray emitting 59 stellar occultations 59 ionised 59 heavily cratered 59 micro meteorites 59 atmospheric aerosols 59 baryon 59 spectral fingerprint 59 interplanetary spacecraft 59 lithosphere 59 CoRoT 7b 59 X ray spectrometer 59 accretion disks 59 X ray pulses 59 lunar meteorites 59 baryonic 59 Jovian moons 59 comet McNaught 59 tidally 59 AGNs 59 Cassini flyby 59 troposphere 59 icy moon Enceladus 59 rotational axis 59 shadowed craters 59 Martian equator 59 X ray binary 59 inner moons 59 blue supergiant 59 Saturnian moons 58 Convection Rotation 58 ionized gases 58 ah dus 58 phyllosilicate 58 occultations 58 collisional 58 Epsilon Aurigae 58 Titan Saturn 58 Doppler shifts 58 Saturnian system 58 Comet Holmes 58 sterile neutrinos 58 redshifted 58 HD #b [002] 58 Gravitational waves 58 prominences 58 Solar TErrestrial RElations Observatory 58 metallicity 58 Corot 9b 58 carbonaceous chondrite 58 Kuiper belt object 58 Martian dust 58 CoRoT #b 58 CAIs 58 outer corona 58 Red Rectangle 58 comet Tempel Tuttle 58 eclipsing binary 58 Neutron stars 58 gravitational interactions 58 tropospheric 58 axial tilt 58 detect gamma rays 58 chlorine monoxide 58 electromagnetic flux 58 CoRoT satellite 58 Zeta Ophiuchi 58 transiting exoplanet 58 atmospheric circulations 58 auroral displays 58 tropospheric ozone 58 nucleosynthesis 58 Saturnian 58 interstellar cloud 58 hydrated minerals 58 red supergiant 58 moons orbiting 58 X ray telescopes 58 coronal holes 58 protostar 58 retroreflector 58 advection 58 gravitational tugs 58 equatorial latitudes 58 fainter objects 58 carbonaceous chondrites 58 retrograde orbits 58 Comet 9P/Tempel 1 58 helium nuclei 58 GALEX 58 perihelion 58 visible wavelengths 58 isotope fractionation 58 icy crust 58 dipole moment 58 ENAs 58 heliopause 58 extrasolar planet 58 Voyager spacecraft 58 magnetic substorms 58 Keck Interferometer 58 Mercury flyby 58 planetary orbits 58 slender crescent 58 proplyds 58 spectrographs 58 comet 58 radiative cooling 58 lensing galaxy 58 luminosities 58 starquakes 58 Titan smoggy 58 filamentary structures 58 cryosphere 58 VIRTIS 58 Hellas Basin 58 spacecraft Cassini 57 eccentric orbits 57 cuprate superconductors 57 Rayleigh scattering 57 Earthlike planet 57 distant supernovae 57 Pluto Charon 57 MESSENGER spacecraft 57 magnetic polarity 57 ejecta blanket 57 planets orbiting distant 57 elliptical galaxy 57 P/# A2 57 galaxy M# [001] 57 comet tail 57 polar mesospheric clouds 57 galactic halo 57 NASA Wilkinson Microwave 57 red supergiants 57 ionize 57 Martian polar 57 active galactic nucleus 57 supersymmetric particles 57 spheroidal 57 ultraviolet photons 57 interstellar grains 57 ferric oxides 57 planet HD #b 57 -# degrees Fahrenheit [002] 57 polar regions 57 exoplanet orbiting 57 merging galaxies 57 Huygens lander 57 Cassini flybys 57 optical wavelengths 57 Gusev crater 57 comet dust 57 geoneutrinos 57 strange quark 57 O OREOS 57 chondrites 57 galaxy NGC 57 colloidal crystals 57 Gamma rays 57 sized planets orbiting 57 yardangs 57 reentry capsule 57 interstellar dust clouds 57 gravitational radiation 57 Io Europa 57 earthshine 57 interstellar dust particles 57 Earth magnetotail 57 moons Phobos 57 Beta Pictoris b 57 HL Tau 57 reflection nebula 57 planemos 57 AB Aurigae 57 Kuiper Belt object 57 gibbous 57 SNR #-#.# 57 longwave radiation 57 protoplanets 57 Upsilon Andromedae b 57 moon Ganymede 57 infall 57 post perovskite 57 Lyman alpha 57 stratospheric ozone 57 protoplanetary disks 57 Wolf Rayet star 57 Martian meteorites 57 Rydberg atom 57 magnetic monopoles 57 terrestrial planets 57 lunar highlands 57 active galactic nuclei 57 magnetars 57 moonquakes 57 HiRISE camera aboard 57 olivines 57 Cabeus crater 57 muon neutrino 57 spectral measurements 57 sun corona 57 accretion disk 57 ionised gas 57 microquasar 57 gamma rays emitted 57 magnetar 57 luminous galaxies 57 specular reflection 57 isotopic ratios 57 planet Gliese #c 57 globulars 57 Yarkovsky effect 57 polar caps 57 X ray observatory 57 nightglow 57 crustal rocks 57 neutralinos 57 coronagraph 57 Rossby waves 57 millisecond pulsar 57 Epoxi 57 extragalactic 57 gaseous envelope 57 Comet Tempel Tuttle 57 interstellar boundary 57 electron flux 57 planetesimal 57 exo planets 57 planet HD#b 57 TNOs 57 electron density 57 polarimetry 57 pyroxene 57 diffuse aurora 57 orbited Jupiter 57 melt inclusions 57 supergiant star 57 Orionids 57 GRB #B 57 cosmic rays 57 UVIS 57 planet Uranus 57 supergiant stars 57 SPICAM 57 Composite Infrared Spectrometer 57 electrons protons 57 gravitational slingshot 57 Cosmic rays 57 interstellar space 57 crystal lattices 57 mantle plumes 57 moon Titan 57 crystallites 57 sulphates 57 plasmasphere 56 SMBHs 56 wavelength infrared 56 exoplanets orbiting 56 stellar nurseries 56 earthlike 56 UV photons 56 blazar 56 Mini Thermal Emission 56 Cosmic Microwave Background 56 Ultraviolet Imaging Spectrograph UVIS 56 Galilean satellites 56 Comet Lulin 56 comet Hale Bopp 56 Infrared Thermal Imaging Spectrometer 56 dusty disks 56 HM Cancri 56 planet Gliese #g 56 ultracold atoms 56 submillimeter 56 Martian surface 56 submillimetre wavelengths 56 Kepler #b 56 lavas 56 gamma ray flares 56 permanently shadowed regions 56 Toutatis 56 ferroelectricity 56 Noctilucent clouds 56 Carina constellation 56 Wolszczan 56 ionized hydrogen 56 neutrino particles 56 spectrographic 56 J# +# [002] 56 spherically symmetric 56 atmospheric methane 56 BP Piscium 56 tau neutrinos 56 auroral activity 56 noble gases 56 MG J# +# 56 zodiacal dust 56 olivine crystals 56 substorm 56 protostars 56 magnetized plasma 56 CMB radiation 56 Relations Observatory STEREO 56 NASA Cassini spacecraft 56 meteoroid 56 Planetary Transits 56 photochemical reactions 56 neutrino mass 56 comets 56 Galactic cosmic rays 56 Higgs bosons 56 Gliese #e 56 Arches Cluster 56 RHESSI 56 XMM Newton 56 extrasolar planets 56 basaltic lava 56 molten magma 56 Planetary nebulae 56 equatorial bulge 56 Type Ia supernova 56 penumbral shadow 56 infrared telescopes 56 HIP #b 56 Saturn moon Iapetus 56 moon Phobos 56 rotating neutron stars 56 nebulosity 56 velocity dispersion 56 Beta Pictoris 56 rocky planets 56 ablator 56 Opportunity Mars rover 56 KH #D 56 TrES 56 solar prominences 56 Hubble observations 56 Methone 56 particle acceleration 56 Explorer WISE 56 SINFONI 56 antimatter particles 56 Planck satellite 56 Orbiter LRO 56 Tempel Tuttle 56 millimeter wavelength 56 transiting planet 56 polariton 56 Quaoar 56 dipolar 56 radiative 56 Thermal Emission Spectrometer 56 kaons 56 carbonyl sulfide 56 electrons emitted 56 lunar soil 56 Saturn moons Titan 56 electrons orbiting 56 NASA MESSENGER spacecraft 56 circular orbits 56 infrared spectral 56 Raman scattering 56 supernova explosion 56 volcanic plumes 56 gravitational microlensing 56 Saturn moons 56 Henize #-# 56 anomalous cosmic rays 56 Churyumov Gerasimenko 56 silicate grains 56 muon neutrinos 56 lowermost mantle 56 Magnetic Imager HMI 56 Eta Carinae 56 ionized 56 X ray afterglow 56 Io volcanoes 56 Mott insulator 56 waning gibbous 56 planetary atmospheres 56 blazars 56 polar stratospheric 56 spacecraft orbited 56 SN #A 56 antiproton 56 gaseous methane 56 ESA XMM Newton 56 galactic cosmic ray 56 auroral 56 gravitational tides 56 molten droplets 56 martian rocks 56 single celled algae 56 Jupiter Uranus 56 photometer 56 Neutron Spectrometer 56 Kepler 9c 56 Circinus X 1 56 hydrocarbon haze 56 chondritic meteorites 56 transiting planets 56 comet orbit 56 osmium 56 infrared observatory 56 V# Mon 56 radial velocity technique 56 exosolar planets 56 aerosols 56 globular cluster M# 56 Itokawa 55 scarps 55 Svedhem 55 Virgo Cluster 55 auroral emissions 55 Martian crust 55 emit X rays 55 Extrasolar Planet Observations 55 comet nuclei 55 high redshift galaxies 55 telescopic observations 55 ionizes 55 starburst galaxy 55 Neptune Uranus 55 Wolf Rayet stars 55 isotopic compositions 55 outermost planet 55 Solar System 55 Manned missions 55 spiral galaxy NGC 55 aurorae 55 neutron spectrometer 55 INMS 55 Magnetars 55 meteoroid impacts 55 Martian lander 55 detect gravitational waves 55 hypersonic speeds 55 occulted 55 asthenosphere 55 Candor Chasma 55 bosonic 55 Maunder minimum 55 Sagittarius B2 55 Nili Fossae 55 convective 55 impactor spacecraft 55 Comet Hartley 55 axions 55 Hyakutake 55 ionized atoms 55 planets asteroids 55 Viking orbiters 55 exo planet 55 supernova explosions 55 celestial sphere 55 Galaxy Evolution 55 electron orbits 55 tau neutrino 55 sulphate particles 55 sextile 55 infrared wavelengths 55 planetary magnetospheres 55 moon gravitational pull 55 spectroscopic measurements 55 planet orbiting 55 Huygens mission 55 lithium atoms 55 Interstellar Boundary Explorer 55 OGLE TR #b 55 electron orbitals 55 gamma ray emission 55 Neutral Mass Spectrometer 55 tidal bulge 55 Martian craters 55 downwelling 55 twin Voyager spacecraft 55 Cabeus 55 mantle convection 55 magma chambers 55 hydrothermal fluid 55 dwarf spheroidal galaxies 55 aerosol concentrations 55 superfluids 55 EPOCh 55 Omega Centauri 55 unconventional superconductivity 55 cobalt atom 55 solar radii 55 Mini TES 55 galaxy redshift 55 shorter wavelengths 55 magmas 55 gravitationally 55 polaritons 55 Geminga 55 CoRoT 9b 55 Orbiter MRO 55 atomic lattice 55 ESA Huygens probe 55 trans Neptunian objects 55 waxing crescent 55 strange quarks 55 cratons 55 hot Jupiters 55 spherules 55 Descent Imager Spectral Radiometer 55 meteorite impacts 55 organic molecules 55 elemental abundances 55 Spitzer infrared spectrograph 55 IR spectra 55 supercooled liquid 55 galactic magnetic 55 SIRTF 55 dirty snowballs 55 Martian terrain 55 overlying layers 55 SN#A 55 Coma Cluster 55 regolith 55 lunar equator 55 moons orbiting Saturn 55 moon Dione 55 protoplanetary 55 energetic cosmic rays 55 homochirality 55 ionized oxygen 55 orbital velocity 55 Huygens descent 55 atmospheric oceanic 55 STEREO spacecraft 55 Ranging spacecraft 55 GZK cutoff 55 GRBs 55 distant quasars 55 chemically reactive 55 orbital inclination 55 type Ia supernova 55 coronal loop 55 relativistic jets 55 infrared radiation 55 astronomical objects 55 spicule 55 planets orbiting stars 55 plasma spectrometer 55 radial velocity method 55 geo synchronous 55 spacecraft Chandrayaan 1 55 cosmic cannibal 55 NGC #A 55 nucleons 55 antineutrinos 55 infalling 55 ultraviolet imaging spectrograph 55 #P/Churyumov-Gerasimenko 55 binary asteroid 55 laser altimeter 55 constellation Ursa Major 55 Magellanic Stream 55 Supernova #A 55 magnetic dynamo 55 Spectrograph 55 sulfur isotope 55 absorption spectra 55 Charon Pluto 55 protoplanetary disc 55 nucleon 55 Rydberg atoms 55 Mandushev 55 infrared spectrometers 54 Olympus Mons 54 multiband imaging photometer 54 constellation Aquarius 54 baryonic matter 54 Solar flares 54 basaltic rock 54 Delta Cephei 54 photoluminescence 54 dynamical evolution 54 helium ions 54 neutrino oscillation 54 extrasolar planets orbiting 54 XMM Newton satellite 54 X ray observatories 54 Crab Nebula 54 Uranus Neptune 54 WISE spacecraft 54 molten rocks 54 Muons 54 ecliptic plane 54 microplastics 54 Characterization EPOCh 54 infrared photons 54 brightest supernova 54 mesospheric 54 Type 1a supernovae 54 rubidium vapor 54 Solar Dynamics Observatory 54 upper tropospheric 54 Hubble Space Telescope HST 54 moons Io 54 Jonathan Lunine 54 extrasolar planetary systems 54 sundog 54 geyser plumes 54 planetoid 54 subglacial lakes 54 constellation Eridanus 54 Martian crater 54 continental crust 54 absorbs photons 54 IRAS #-# 54 Gamma ray bursts 54 surface plasmons 54 Bose Einstein condensate BEC 54 Hanny Voorwerp 54 Extreme Ultraviolet Variability Experiment 54 active volcanism 54 VHE gamma rays 54 ionospheric 54 stony meteorites 54 cumulus cloud 54 quasicrystal 54 Cassini 54 electrons positrons 54 arcseconds 54 distant supernovas 54 backscattered 54 Diviner instrument 54 gravitational perturbations 54 asteroid Vesta 54 planetary nebula 54 Orion nebula 54 quark gluon plasma 54 Raman spectra 54 quasiparticle 54 Earth biosphere 54 Saharan dust 54 Earthlike planets 54 vorticity 54 XTE J# 54 outermost planets 54 Proxima Centauri 54 millimeter wavelengths 54 calcite crystals 54 KT boundary 54 Antarctic Dry Valleys 54 magnetic reconnection 54 HD# [002] 54 Ozone O3 54 Martian rocks 54 fissure eruption 54 atmospheric convection 54 polarimetric 54 silica particles 54 anorthosite 54 equatorial regions 54 GRB# 54 orbiter Cassini 54 super Earths 54 BLG #L 54 chlorine atom 54 mineralogical composition 54 spectral characteristics 54 martian meteorites 54 astrometry 54 galaxy M# [002] 54 blackbody 54 G#.# +#.# 54 ray Space Telescope 54 hydrogen ions 54 gravity warps 54 Iapetus 54 alpha particles 54 TrES 4 54 gravitational lens 54 gamma rays 54 habitable worlds 54 oxidized mercury 54 zodiacal light 54 martian soil 54 supernova remnant 54 drogue parachute 54 Pluto Eris 54 infrared spectrometer 54 missing baryons 54 Tharsis Rise 54 star Spica 54 Keck telescopes 54 corona 54 spicules 54 waning crescent 54 microcavities 54 sunlike star 54 Cepheid variables 54 gamma ray burst 54 galactic cores 54 reddish orange hue 54 polar latitudes 54 infrared wavelength 54 Express orbiter 54 microcavity 54 Quadrantid meteor shower 54 OMEGA instrument 54 electron pairing 54 HII regions 54 martian surface 54 infrared spectrograph 54 Aram Chaos 54 Saturn aurora 54 chlorine peroxide 54 Rosette Nebula 54 sulfur atom 54 gravitational redshift 54 Cassini spacecraft 54 tropical latitudes 54 mid latitudes 54 isotope ratios 54 cesium vapor 54 W boson 54 quantum oscillations 54 hydrogen nuclei 54 Alfvén waves 54 oblate spheroid 54 astrophysical objects 54 Earth orbiting satellites 54 NASA QuikScat satellite 54 cosmic ray 54 hydrogen helium 54 toroid 54 radial velocity measurements 54 HARPS spectrograph attached 54 permanently shadowed 54 Sedna 54 exoplanetary systems 54 olivine 54 oxygen ions 54 Infrared Mapping Spectrometer VIMS 54 gray hematite 54 LORRI 54 electron pairs 54 supernova SN 54 orbits 54 planets Uranus 54 Mossbauer 54 planetary nebulas 54 cosmic ray collisions 54 constellation Centaurus 54 Hubble orbits 54 constellation Carina 54 planetary surfaces 54 clathrates 54 inner Oort Cloud 54 sulfate salts 54 gluon 54 CoRoT 54 bolometer 54 nucleobases 54 Terra Meridiani 54 Saturn Uranus 54 SN #D 54 equatorial orbit 54 constellation Hercules