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(Click for frequent words.) 67 Earth ionosphere 66 extrasolar 66 airglow 66 proplyds 66 VY Canis Majoris 65 photosphere 65 solar corona 65 Kuiper belt objects 65 Comet Halley 64 energetic electrons 64 Upsilon Andromedae 64 stellar occultations 64 prominences 64 planetary nebulas 64 Maunder minimum 64 Hot Jupiters 64 cosmological distances 64 galactic cosmic rays 64 planets orbits 64 Upsilon Andromedae b 64 coronal mass ejections CMEs 64 starquakes 63 moon Io 63 earthshine 63 Saturn magnetosphere 63 ionized gases 63 interstellar dust clouds 63 Ulysses spacecraft 63 ionised gas 63 circumstellar 63 magnetospheric 63 distant supernovas 63 heliospheric 63 aurorae 63 planets comets 63 OGLE TR #b 63 Galilean moons 63 accretion disks 63 Solar TErrestrial RElations Observatory 63 COROT 7b 62 exo planets 62 Alfven waves 62 exoplanetary 62 solar prominences 62 X ray wavelengths 62 stellar seismology 62 Cepheid variables 62 Corot 7b 62 coronal holes 62 occultations 62 Vourlidas 62 X ray pulses 62 Saturn Enceladus 62 HD#b 62 retrograde orbit 62 lunar equator 62 polar mesospheric clouds 62 RS Ophiuchi 61 Cosmic Microwave Background 61 IRC +# 61 elongated orbits 61 relativistic particles 61 nebular 61 circumstellar disks 61 Heliospheric Observatory SOHO 61 spacecraft flyby 61 tholins 61 Bug Nebula 61 planetary Transits 61 filamentary structure 61 chromosphere 61 SNR #-#.# 61 moons orbiting 61 VB #b 61 Gravitational waves 61 Fermi telescope 61 plasmasphere 61 lunar craters 61 extrasolar planetary systems 61 auroral displays 61 planetary atmospheres 61 Martian dust 61 dwarf spheroidal galaxies 61 jovian 61 substorm 61 sunlike stars 61 cosmic ray flux 61 Red Rectangle 61 Orionids 61 planet magnetosphere 60 Rossby waves 60 meteoroid impacts 60 interplanetary spacecraft 60 exoplanets planets 60 ultracold atoms 60 magnetic monopoles 60 Mercury magnetosphere 60 Jovian moons 60 magma ocean 60 Helix Nebula 60 CMB radiation 60 Kuiper Belt Objects 60 silicon monoxide 60 Galactic cosmic rays 60 gravitational perturbations 60 protoplanet 60 comet Hale Bopp 60 gravitational tides 60 spiral nebulae 60 sized planets orbiting 60 electromagnetic flux 60 type Ia supernovae 60 particle acceleration 60 mineral olivine 60 Comet Tempel Tuttle 60 Perseus Cluster 60 protoplanetary disks 60 spatially resolved 60 exosphere 60 interstellar clouds 60 intrinsic brightness 60 V# Mon 60 ionized particles 60 Fomalhaut b 60 lensing galaxy 60 Aurigid 60 magnetospheres 60 Trapezium 60 cosmic phenomena 60 spicule 60 comet Tempel Tuttle 60 albedo reflectivity 60 auroral 60 Oort cloud 60 polar vortex 60 relativistic jets 60 nightglow 60 Geminga 60 distant supernovae 60 transiting exoplanet 60 Type Ia supernovas 60 meteorite impacts 60 Spitzer infrared spectrograph 60 Delta Cephei 60 moons circling 60 blue supergiant 60 Jupiter moon Io 59 infall 59 GJ #b [002] 59 galactic disk 59 lightwaves 59 retroreflector 59 sun corona 59 thermal gradients 59 planets Uranus 59 icy comets 59 zodiacal light 59 WASP #b 59 stellar occultation 59 electron neutrinos 59 Magnetars 59 Uranus Neptune 59 MG J# +# 59 Rayleigh scattering 59 Jupiter Uranus 59 Earth magnetosphere 59 Noctilucent clouds 59 planets atmospheres 59 gravitational interaction 59 Alycia Weinberger 59 ultraviolet radiation emitted 59 Hanny Voorwerp 59 sundog 59 planet Uranus 59 eclipsing binary 59 TrES 4 59 gamma ray observatory 59 Bok globules 59 comets asteroids 59 millisecond pulsars 59 colloidal crystals 59 stellar nurseries 59 X ray telescopes 59 X ray emission 59 axions 59 Dust devils 59 meridional flow 59 coronal mass ejections 59 ultraviolet wavelengths 59 cosmic ray intensity 59 outer corona 59 polarimetry 59 blazars 59 SN #A 59 exoplanets orbiting 59 Cosmic rays 59 asteroids comets 59 Galilean satellites 59 planet Gliese #g 59 comet McNaught 59 Epsilon Eridani 59 Zeta Ophiuchi 59 GJ #b [001] 59 radial velocity technique 59 interstellar cloud 58 carbonate globules 58 dimming starlight 58 volcanic moon Io 58 diffuse aurora 58 Neptune Uranus 58 RHESSI 58 planets orbiting stars 58 planetary nebulae 58 ionospheric 58 synchrotron x ray 58 magnetic polarity 58 noctilucent clouds 58 photochemical reactions 58 auroral activity 58 planetary orbits 58 Stephan Quintet 58 planets orbiting distant 58 retrograde orbits 58 Martian terrain 58 Kuiper Belt Object 58 gaseous planet 58 Toutatis 58 Saturnian moon 58 tidal bulge 58 Comet Holmes 58 millisecond pulsar 58 radioactive nuclei 58 Milky Way halo 58 comets orbiting 58 moonquakes 58 Relations Observatory STEREO 58 Carina constellation 58 Antarctic Dry Valleys 58 yardangs 58 constellation Eridanus 58 Higgs bosons 58 twin STEREO spacecraft 58 periodic dimming 58 astrophysical objects 58 inhabitable planets 58 innermost planet 58 volcanic lava flows 58 Wolf Rayet stars 58 KH #D 58 GALEX 58 asteroseismology 58 SN #gy 58 nebulosity 58 Peony nebula star 58 gaseous planets 58 subsurface ocean 58 superluminal 58 millimeter wavelengths 58 Butterfly Nebula 58 spectroscopic measurements 58 Mate Adamkovics 58 afterglows 58 smallest exoplanet 58 lunar crust 58 planetary magnetospheres 58 HD# [002] 58 astrophysical phenomena 58 Epsilon Aurigae 58 heavily cratered 58 Martian craters 58 planets circling stars 58 orbiting Chandra 58 Jupiter icy moons 58 icy moons 58 cosmic ray particles 58 microlensing events 58 Milankovitch cycles 58 supergiant star 58 constellation Hercules 58 Gamma ray 58 asteroidal 58 circumstellar disk 58 chondrules 58 superfluids 58 Saturn moon Mimas 58 shadowed craters 58 magnetic substorms 58 active galactic nuclei 58 Saturnian 58 planemos 58 Helioseismic 58 GJ#b 58 planets moons 58 graphite whiskers 57 Type Ia supernova 57 planetary transits 57 KBOs 57 magnetotail 57 AGNs 57 solar minima 57 cometary debris 57 HM Cancri 57 permanently shadowed regions 57 Hubble orbits 57 Henize #-# 57 unconventional superconductivity 57 HII regions 57 gravitational microlensing 57 Saturn aurora 57 AB Aurigae 57 hydroxyl molecules 57 meteoroids 57 Neutron stars 57 waxing crescent 57 hexagonal mirrors 57 Gliese #e 57 starburst galaxy 57 extragalactic 57 P/# A2 57 celestial mechanics 57 Saturn Cassini 57 galaxy M# [001] 57 Planck satellite 57 magnetic excitations 57 Jupiter Saturn 57 submillimeter wavelengths 57 linearly polarized 57 Solar flares 57 Omega Nebula 57 gravitational radiation 57 planets asteroids 57 backscattered 57 helium nuclei 57 solitons 57 lunar craters near 57 Thick smoke obscured 57 Cancri e 57 magnetic monopole 57 emits X rays 57 radiative transfer 57 Keck Interferometer 57 Wilkinson Microwave Anisotropy Probe 57 YORP effect 57 Gravitational lensing 57 CoRoT satellite 57 nucleosynthesis 57 Gamma ray burst 57 outermost planets 57 celestial phenomena 57 Planetary nebulae 57 merging galaxies 57 planet Gliese #c 57 coronal heating 57 Eta Aquarids 57 spicules 57 supersymmetric particles 57 RRATs 57 cosmic microwave radiation 57 Alfvén waves 57 Samuel Oschin Telescope 57 reflection nebula 57 Saturn rings 57 Earthlike 57 Mercury exosphere 57 gamma rays emitted 57 superstrings 57 Venusian 57 planetesimals 57 prograde 57 mu Arae 57 solar flares 57 HESS telescopes 57 crystalline silicates 57 magnetic reconnection 57 distant quasars 57 elliptical orbits 57 gravitational lensing 57 called gravitational microlensing 57 dynamical processes 57 moon Enceladus 57 magnetic dynamo 57 planetary nebula 57 HiRISE image 57 Syrtis Major 57 IBEX spacecraft 57 Cherenkov radiation 57 Helix nebula 57 spheroidal 57 Comet Hartley 2 57 Type 1a supernovae 57 Comet 9P/Tempel 1 57 comet 57 novas 57 IKAROS 57 lowermost mantle 57 supernova explosion 57 convection currents 57 dusty disks 57 outer planets 57 Venusian atmosphere 57 multiband imaging photometer 57 orbital eccentricity 57 AU Mic 57 Corot 9b 57 supergiant stars 57 gamma ray emission 56 sodium atoms 56 bosonic 56 hydrosphere 56 exo planet 56 De Pontieu 56 celestial sphere 56 dynamical evolution 56 barred spiral galaxy 56 electroluminescence 56 Comet Encke 56 Io Europa 56 Tempel Tuttle 56 distant quasar 56 APXS 56 magnetized plasma 56 antineutrinos 56 gamma ray flashes 56 gravitational lens 56 crystalline solids 56 assumed planets circling 56 optical lattices 56 detect gravitational waves 56 spinning neutron stars 56 Muchachos Observatory 56 Orion nebula 56 galactic cores 56 Wolszczan 56 mesosphere 56 planets 56 BLG #Lb 56 novae 56 spherically symmetric 56 Ultraviolet Imaging Spectrograph UVIS 56 comet orbit 56 X ray emitting 56 Voorwerp 56 planetary alignments 56 Terahertz waves 56 moons Phobos 56 Mercury Uranus 56 ionise 56 Mini TES 56 comets 56 Gamma rays 56 shorter wavelengths 56 HD #b [002] 56 Solar Dynamics Observatory 56 gamma ray flares 56 Cassini flyby 56 star Beta Pictoris 56 astronomical phenomena 56 Supernova #A 56 cosmic strings 56 lithium atoms 56 emit X rays 56 topological insulators 56 spectral fingerprints 56 waning gibbous 56 Bose Einstein condensation 56 transiting planet 56 Cat Paw Nebula 56 electrons positrons 56 Antennae Galaxies 56 CoRoT #b 56 binary asteroid 56 ray Space Telescope 56 intracluster 56 Cepheids 56 Rosette Nebula 56 proto planetary disk 56 slender crescent 56 thermonuclear reactions 56 Earthlike planets 56 carbonaceous chondrites 56 GLAST telescope 56 telescopic observations 56 equatorial bulge 56 orbiting gamma ray 56 planetoids 56 extrasolar planets orbiting 56 weak gravitational lensing 56 luminous galaxies 56 magnetic fields 56 Coronal Mass Ejections 56 sunlike star 56 WMAP satellite 56 Veil Nebula 56 Galileo spacecraft 56 lunar perigee 56 stony meteorites 56 Rydberg atom 56 moon Mimas 56 X ray spectrometer 56 magnetars 56 submillimetre wavelengths 56 gravity warps 56 corona discharge 56 Spitzer infrared 56 neutrino particles 56 thermal convection 56 sterile neutrino 56 ejecta blanket 56 submillimeter 56 Jovian moon 56 Cosmic Microwave Background CMB 56 Mars Uranus 56 gravitational interactions 56 submillimeter galaxies 56 axial tilt 56 cometary dust 56 BP Psc 56 occulted 56 metallic nanostructures 56 Trifid 56 ULP cepheids 56 neutrino mass 56 post perovskite 56 ionized hydrogen 56 Saturnian moon Titan 56 quantum oscillations 56 Charon Pluto 56 moonlets 56 Bose Einstein condensates 56 Heterodyne Instrument 56 meteoritic material 56 HIP #b 56 ultrashort pulses 56 luminosities 56 Dynamics Observatory 55 silicate dust 55 X ray afterglow 55 weakly interacting 55 CoRoT 9b 55 SINFONI 55 solar nebula 55 meteoroid 55 Sagittarius dwarf galaxy 55 RXTE 55 ADM Aeolus 55 absorbs photons 55 mineralogical composition 55 cosmic cannibal 55 phyllosilicates 55 Comet Hale Bopp 55 neutron scattering experiments 55 Nasa spacecraft 55 protoplanetary discs 55 Doppler shifts 55 ESO VLT 55 Anthony Remijan 55 foreground galaxy 55 exoplanet orbiting 55 interstellar dust grains 55 Gliese #c 55 Caloris 55 TGFs 55 atmospheric aerosols 55 Cygnus Lyra region 55 rotating neutron stars 55 Planck telescope 55 exoplanets planets outside 55 RS Oph 55 Gliese #G 55 STEREO spacecraft 55 glows brightly 55 Quadrantid meteor shower 55 Great Conveyor Belt 55 dust devils 55 galaxy M# [002] 55 energetic cosmic rays 55 HL Tau 55 planet HD #b 55 highly elliptical orbits 55 convective clouds 55 protoplanetary disk 55 Diviner 55 #P/Churyumov-Gerasimenko 55 Marc Kuchner 55 Composite Infrared Spectrometer 55 ionosphere 55 Lagoon Nebula 55 icy moon Enceladus 55 gibbous 55 Substorms 55 ultrashort laser pulses 55 geomicrobiology studying particles 55 single celled algae 55 infrared observatory 55 Sunspots 55 zodiacal dust 55 Jupiter Ganymede 55 faraway galaxies 55 colloidal particles 55 olivine mineral 55 hot Jupiters 55 WHIM 55 Coma cluster 55 radar interferometry 55 Plate tectonics 55 protostars 55 MARSIS radar 55 Magnetospheric 55 Magellanic Stream 55 Gerard Kuiper 55 convective 55 cumulus cloud 55 GRB #A 55 Taurid 55 NASA Wilkinson Microwave 55 Comet Hartley 55 cosmological theories 55 ultra violet radiation 55 Evolution Explorer 55 gibbous moon 55 muon neutrino 55 sonoluminescence 55 Active Galactic Nuclei 55 shadowy craters 55 mantle plumes 55 distant galaxy clusters 55 Virgo Cluster 55 ghostly glow 55 spectroscopic analysis 55 blackbody 55 Michael Flasar 55 yttrium barium copper 55 crustal thickness 55 comet tail 55 sulfate aerosols 55 substorms 55 protoplanets 55 spectroscope 55 Jovian planets 55 starbursts 55 waxing gibbous moon 55 cosmic rays 55 micro meteorites 55 sulphate aerosols 55 nebula NGC 55 surface plasmon polariton 55 permanently shadowed craters 55 Magnetic Imager HMI 55 masers 55 Eagle Nebula 55 G#.# +#.# 55 Kepler 9c 55 R Coronae Borealis 55 geomagnetic storms 55 Quadrantid 55 SN#A 55 Bose Einstein Condensate 55 submillimeter wavelength 55 solar neutrinos 55 Svedhem 55 silicate rocks 55 cosmic magnifying glass 55 cometary material 55 Keck telescope 55 chlorophyll molecules 55 atmospheric phenomena 55 Andromeda halo 55 Orionid 55 polar caps 55 lobate scarps 55 magnetosphere 55 Brookhaven Relativistic Heavy 55 supernova explosions 55 atmospheric circulations 55 Horsehead Nebula 55 polar stratospheric 55 Thermal Emission Spectrometer 55 electrons protons 55 ionised 55 trans Neptunian objects 55 earthlike planets 55 interstellar medium 55 dirty snowballs 55 Orion constellation 55 HARPS instrument 55 UV photons 55 submillimetre 54 coronal loop 54 cirrus cloud 54 nebulas 54 ringed planet 54 spectroscopic observations 54 Pluto Eris 54 red supergiants 54 inhomogeneities 54 SIRTF 54 Descent Imager Spectral Radiometer 54 atmospheric neutrinos 54 Anisotropy Probe WMAP 54 ionized gas 54 gravitational lenses 54 Ultraviolet rays 54 surface plasmon 54 blazar 54 largest moon Charon 54 pions 54 active galactic nucleus 54 Ultraviolet Optical Telescope 54 Kuiper Belt object 54 comet Lulin 54 astronomers 54 Earth biosphere 54 coronagraph 54 Muons 54 Nasa Kepler 54 equatorial latitudes 54 CMEs 54 redshifted 54 galactic magnetic 54 dense clumps 54 Extrasolar planets 54 ultraviolet photons 54 neutrino oscillation 54 Heliospheric Observatory 54 noctilucent 54 Ring Nebula 54 earthlike 54 interferometry 54 red supergiant 54 fainter objects 54 quasicrystal 54 meteor impacts 54 BP Piscium 54 Herschel Crater 54 extrasolar planetary 54 planetary embryos 54 Beta Pictoris b 54 precessing 54 spacetime 54 sunspot cluster 54 Super Earths 54 rotational axis 54 VHE gamma rays 54 SOHO spacecraft 54 Quadrantids 54 HD #b [001] 54 supercomputer simulations 54 discover Fomalhaut 54 Titan smoggy 54 Mössbauer 54 Iapetus 54 accretion disk 54 electronic excitations 54 Uranus Jupiter 54 constellation Virgo 54 ultraviolet imaging spectrograph 54 Cabeus crater 54 electron orbits 54 zodiacal constellations 54 Ringed Planet 54 prebiotic molecules 54 Swift Tuttle 54 Martian rovers 54 galactic mergers 54 Kuiper belt 54 zodiac constellations 54 Earth magnetotail 54 sidereal 54 basaltic rocks 54 eccentric orbits 54 PUVA psoralen plus 54 ENAs 54 XMM Newton 54 Avishay Gal Yam 54 magnetopause 54 homochirality 54 supernovae explosions 54 Halley comet 54 downwelling 54 femtosecond timescale 54 NASA STEREO 54 IR wavelengths 54 Wolf Rayet star 54 transiting planets 54 Josefino Comiso 54 Dumbbell Nebula 54 NASA QuikScat satellite 54 auroras 54 supermassive 54 nanomechanics 54 diffraction patterns 54 atmospheric oceanic 54 chlorophyll fluorescence 54 SN #D 54 antiferromagnets 54 IRAS #-# 54 galactic clusters 54 volcanic plumes 54 gravitons 54 thin crescent 54 Pluto Charon 54 Saturn Jupiter Uranus 54 kaons 54 Oort Cloud 54 Tharsis Rise 54 Astrophysics MOA 54 detect neutrinos 54 Pleiades cluster 54 Explorer WISE 54 PSR B# 54 superlattices 54 Planetary Transits 54 Orion Nebula 54 radiative cooling 54 CMB photons 54 microscopic crystals 54 broiling Havana 54 periodicities 54 Actinic keratoses 54 tropical latitudes 54 biomineralization 54 terrestrial planets 54 star Spica 54 isotope fractionation 54 unmanned probes 54 Taurids 54 oceanography meteorology 54 silicate crystals 54 numerical simulations 54 ESA Integral 54 Eta Aquarid meteor shower 54 starlike 54 Trifid Nebula 54 astrometry 54 Comet Elenin 54 impactors 54 auroral emissions 54 UCO Lick 54 celestial bodies 54 tetrahedron 54 Hawking Radiation 54 Saturn moons Enceladus 54 nebulae 54 gravitational pulls 54 emission nebula 54 Geminid meteors 54 neutralinos 54 soliton 54 Imke de 54 midlatitudes 54 spectroscopically 54 Bill Borucki Kepler 54 Milankovitch 54 isotherms 54 VIRTIS 54 silicate grains 54 La Silla observatory 54 gravitational wobbles 54 Crab Pulsar 54 X ray spectroscopy 54 NASA THEMIS 54 hypernova 54 cosmic ray 54 cosmic ray collisions 54 topographical characteristics 54 quasicrystalline 54 carbon nanostructures 54 infrared spectrometers 54 highly collimated 54 Type 1a supernova 54 infalling 53 Spectrograph 53 visible wavelengths 53 Hubble Space Telescope HST 53 scatterometer 53 Voyager spacecraft 53 Krimigis 53 ultraviolet sunlight 53 surface plasmons 53 Herschel Space 53 polar craters 53 HiRISE camera aboard 53 coronal magnetic field 53 ESA Cluster 53 Doppler shift 53 Manned missions 53 linearly polarized light 53 exerts gravitational pull 53 habitable worlds 53 Meteor showers 53 globulars 53 mantle convection 53 Greenhouse gases trap 53 binary asteroids 53 Gal Yam 53 Gamma ray bursts 53 X ray binaries 53 cosmological parameters 53 spiral galaxy NGC 53 proto galaxies 53 faint galaxies 53 quantum mechanically 53 supernova remnants 53 Oscillations 53 stratospheric ozone depletion 53 Olympus Mons 53 Omega Centauri 53 axion 53 Mars moon Phobos 53 Haumea 53 quantum particles 53 constellation Cassiopeia 53 meteor craters 53 atmospheric convection 53 silicate mantle 53 asterism 53 Leonid meteor 53 temporal variability 53 ecliptic plane 53 quantum electrodynamics 53 SeaWiFS 53 reionization 53 photons particles 53 Fermi Gamma ray 53 quantum particle 53 Anisotropy Probe 53 constellation Aquila 53 mineral hematite 53 interferometric 53 Earthlike planet 53 THEMIS satellites 53 MEarth 53 asteroid collisions 53 extrasolar planet HD #b 53 type Ia supernova 53 particle analyzers 53 Exoplanet 53 dipolar 53 infrared telescopes 53 collisional 53 BLG #L 53 semiconductor nanostructures 53 silicate minerals 53 fractal patterns 53 planets constellations 53 interstellar particles 53 COROT 53 Kelvin Helmholtz 53 Jenniskens 53 Mott insulators 53 gamma rays 53 Type Ia supernovae 53 mineralogical mapping 53 Coronal Mass Ejections CMEs 53 quantum phenomena 53 Type Ia 53 antimatter particles 53 Solar Optical Telescope 53 neutrino oscillations 53 sterile neutrinos 53 protons collide 53 Mandushev 53 NASA Far Ultraviolet 53 nanobubbles 53 Earthshine 53 Reiner Gamma 53 Great Orion Nebula 53 exobiology 53 electron neutrino 53 graphene electrons 53 pre biotic 53 helium atoms 53 Earth asteroids NEAs 53 mesospheric 53 Shackleton crater 53 double helix nebula 53 smoothest flattest 53 Magellanic Clouds 53 Geminid 53 chlorosomes 53 faint wisps 53 Beta Pictoris 53 volcanic aerosols 53 morphologies 53 tropospheric 53 lunar meteorites 53 bedrock outcropping 53 interstellar grains 53 atomic lattice 53 stratospheric clouds 53 photochemistry 53 Ordovician extinction 53 Europa Ganymede 53 astrophysical 53 Arches Cluster 53 spherical halo 53 faintest galaxies 53 planets orbiting sun 53 moon Charon