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(Click for frequent words.) 73 photosphere 67 mesosphere 67 moon Mimas 66 solar corona 66 protoplanetary disk 66 magnetospheric 66 ionized hydrogen 65 mantle plumes 65 galactic cosmic rays 65 X ray emission 65 galactic disk 64 jovian 64 icy moons 64 blue supergiant 64 exosphere 64 coronal holes 64 polar vortex 63 downwelling 63 basaltic rocks 63 Saturn magnetosphere 63 magnetosphere 63 sodium atoms 63 interstellar clouds 63 X ray emitting 63 proplyds 63 chondrules 63 Bok globules 62 ionized gas 62 lowermost mantle 62 solar nebula 62 emission nebula 62 circumstellar 62 prominences 62 energetic electrons 62 planetary nebula 62 circumstellar disk 62 post perovskite 62 Upsilon Andromedae 62 Oort cloud 61 zodiacal dust 61 airglow 61 Syrtis Major 61 moon Io 61 silicate dust 61 RS Ophiuchi 61 reflection nebula 61 elongated orbits 61 nebular 61 coronal loops 61 Neutron stars 61 Trifid Nebula 61 red supergiants 61 Comet Tempel Tuttle 61 protostar 61 tropopause 61 accretion disks 61 Sagittarius B2 61 protoplanetary disks 61 Cat Paw Nebula 61 magnetotail 61 planetary nebulae 60 gaseous envelope 60 Bug Nebula 60 Cosmic rays 60 convective 60 moon Enceladus 60 heliosheath 60 X ray binaries 60 silicate mantle 60 noctilucent clouds 60 grabens 60 comets orbiting 60 lunar crust 60 spicules 60 supergiant star 60 Fomalhaut b 60 magnetized plasma 60 asthenosphere 60 Mercury magnetosphere 60 luminosities 60 deep convective clouds 60 sunlike stars 60 filamentary structure 60 galactic halo 60 elliptical galaxy 60 stellar nurseries 60 Earth ionosphere 60 ULIRGs 60 heavily cratered 60 V# Mon 59 GJ#b 59 tropical latitudes 59 constellation Virgo 59 ferric oxides 59 galactic bulge 59 ejecta 59 ionised 59 Jupiter moon Io 59 circumstellar disks 59 gaseous planets 59 geothermal gradient 59 Oort Cloud 59 X ray wavelengths 59 Gamma rays 59 cosmic ray flux 59 outer corona 59 silicon monoxide 59 Noctilucent clouds 59 Alfven waves 59 subsurface ocean 59 protostars 59 Delta Cephei 59 GJ #b [002] 59 auroral 59 cosmic ray particles 59 Carina Nebula 59 Kuiper belt objects 59 Venusian atmosphere 59 corona 59 WASP #b 59 heliosphere 59 Rossby waves 59 Corot 9b 59 celestial sphere 59 interstellar cloud 59 Jupiter magnetosphere 59 constellation Aquarius 59 planet magnetosphere 59 Kuiper belt 59 AU Mic 59 Arsia Mons 59 ecliptic plane 58 ultraviolet wavelengths 58 auroral displays 58 Caloris 58 lensing galaxy 58 Wolf Rayet stars 58 constellation Hercules 58 luminous galaxies 58 Earth magnetosphere 58 velocity dispersion 58 cirrus cloud 58 gamma ray emission 58 nebulosity 58 Alfvén waves 58 Rosette Nebula 58 nebula NGC 58 HII regions 58 HL Tau 58 magma ocean 58 polar latitudes 58 polar mesospheric clouds 58 hydrosphere 58 extrasolar 58 basal layer 58 lithosphere 58 moonlets 58 upper troposphere 58 interstellar medium 58 electron density 58 Ulysses spacecraft 58 zodiacal light 58 ionized particles 58 Great Conveyor Belt 58 periodicities 58 SNR #-#.# 58 retrograde orbit 58 Valles Marineris 58 substorm 58 ionised gas 58 helium atoms 58 red supergiant 58 Comet Holmes 57 plasmasphere 57 spiral galaxy NGC 57 spatially resolved 57 galaxy NGC 57 Wolf Rayet star 57 KBOs 57 Reiner Gamma 57 lunar craters 57 Milky Way halo 57 interstellar boundary 57 dense clumps 57 aerosol particles 57 nebulae 57 planet Gliese #c 57 advection 57 infrared wavelength 57 smoggy atmosphere 57 southern latitudes 57 Hot Jupiters 57 permanently shadowed craters 57 magnetopause 57 VY Canis Majoris 57 cirrus clouds 57 shadowed craters 57 Saturn moon Enceladus 57 constellation Centaurus 57 spherical halo 57 gravitational tides 57 cluster NGC 57 De Pontieu 57 lobate scarps 57 submillimetre wavelengths 57 GJ #b [001] 57 constellation Carina 57 planets orbits 57 supernova explosions 57 Orion Nebula 57 submillimeter 57 ionized gases 57 Planetary nebulae 57 plagioclase 57 sunspot cluster 57 altocumulus 57 chlorine monoxide 57 innermost planet 57 electron neutrinos 57 exoplanets orbiting 57 polar craters 57 magnetic reconnection 57 radiative 57 ionosphere 57 globulars 57 filamentary 57 gamma ray flares 57 micron wavelengths 57 Milky Way Galaxy 57 accretion disk 57 carbonate minerals 57 mantle convection 57 coronal mass ejections CMEs 57 tropospheric 57 AGNs 57 Saturnian moon 57 silicate rocks 57 exoplanetary 57 Coma Cluster 56 VB #b 56 crystalline silicates 56 IRC +# 56 Galilean moons 56 supernova remnant 56 nanobubbles 56 colloidal crystals 56 Milankovitch cycles 56 Orion nebula 56 diffuse aurora 56 polar stratospheric 56 spheroidal 56 Orion constellation 56 emit X rays 56 tropical troposphere 56 Red Rectangle 56 UV photons 56 star Spica 56 martian atmosphere 56 dipolar 56 lavas 56 Gravitational waves 56 infrared spectral 56 auroral oval 56 active galactic nucleus 56 HD#b 56 solar prominences 56 planet orbits 56 icy comets 56 constellation Cassiopeia 56 interannual variability 56 troposphere 56 starburst galaxies 56 Pleiades cluster 56 arcminutes 56 Comet Halley 56 constellation Lyra 56 olivines 56 rotational axis 56 gravitational interaction 56 Epsilon Eridani 56 Jovian moons 56 starburst galaxy 56 planetary transits 56 Saturnian moons 56 silicate minerals 56 MG J# +# 56 infalling gas 56 hydroxyl molecules 56 magmas 56 linearly polarized 56 radiative cooling 56 anticyclonic 56 Cosmic Microwave Background 56 Mpc 56 molten magma 56 prograde 56 ionise 56 Olympus Mons 56 heliospheric 56 protoplanetary 56 electron orbitals 56 starquakes 56 oceanic crust 56 terrestrial planets 56 outermost layers 56 dynamical processes 56 X ray pulses 56 eccentric orbits 56 Tarantula Nebula 56 mid latitudes 56 relativistic particles 56 planet HD #b 56 energetic gamma rays 56 temperature gradients 56 high redshift galaxies 56 helium nuclei 56 CMB radiation 56 photon energies 56 calderas 55 midlatitudes 55 volcanic vents 55 ejecta blanket 55 Martian dust 55 Southern Oscillation 55 Beta Pictoris 55 coronal loop 55 sunlike star 55 Mercury exosphere 55 albedo reflectivity 55 Candor Chasma 55 Saturn Enceladus 55 crustal rocks 55 atomic lattice 55 Corot 7b 55 strange quark 55 eclipsing binary 55 Solar TErrestrial RElations Observatory 55 vorticity 55 cumulus cloud 55 supernova remnants 55 galaxy cluster 55 seafloor sediments 55 tidal bulge 55 meridional flow 55 Kuiper Belt Objects 55 Saturn moon Mimas 55 convection currents 55 filamentary structures 55 moonlet 55 planetesimal 55 visible wavelengths 55 galaxy M# [001] 55 cryovolcanism 55 microquasar 55 constellation Scorpius 55 galactic cores 55 Surface Composition Spectrometer 55 active galactic nuclei 55 occultations 55 IR wavelengths 55 meteoritic material 55 Lagoon Nebula 55 sulfidic 55 elliptical orbits 55 TrES 4 55 Elysium Planitia 55 equatorial latitudes 55 HD #b [002] 55 Saturn rings 55 nebula 55 Veil Nebula 55 ultraviolet radiation emitted 55 electron diffusion 55 slender crescent 55 AB Aurigae 55 volcanic lava flows 55 Zeta Ophiuchi 55 gamma rays emitted 55 upper tropospheric 55 rocky planets 55 Tarantula nebula 55 stratocumulus clouds 55 Tharsis 55 constellation Taurus 55 millimeter wavelength 55 inhomogeneous 55 infrared wavelengths 55 S#W# 55 interacting galaxies 55 basaltic lava 55 galaxy M# [002] 55 solar insolation 55 -# degrees Fahrenheit [002] 55 metallicity 55 intrinsic brightness 55 Earthlike 55 nanopillars 55 thermal gradients 55 HD# [002] 55 constellation Leo 55 thermosphere 55 neutrino mass 55 cosmic ray intensity 55 starlike object 55 Tharsis Rise 55 SMBH 55 coccolithophores 55 CoRoT satellite 55 epidermal layer 55 planetesimals 55 gravitational interactions 55 longwave radiation 55 BP Piscium 55 magnetic substorms 55 moons orbiting 55 Hellas Basin 55 constellation Andromeda 55 Sagittarius dwarf galaxy 55 planetary magnetospheres 54 X ray binary 54 runaway thermonuclear 54 pyroxene 54 supernova explosion 54 andesitic rocks 54 cyclonic circulations 54 Geminga 54 ENAs 54 J# +# [002] 54 globular cluster M# 54 Trapezium 54 supergiant stars 54 habitable zones 54 Palaeozoic sedimentary 54 Saturn outermost 54 electrons orbiting 54 single celled algae 54 Type Ia supernova 54 Magnetic Imager HMI 54 mineral olivine 54 sunward 54 subhorizontal 54 constellation Eridanus 54 silicate grains 54 equatorial 54 Caloris Basin 54 dynamical evolution 54 waxing crescent 54 solar minima 54 cometary debris 54 phyllosilicates 54 spicule 54 coronal hole 54 Epsilon Aurigae 54 vortices 54 Spiral galaxies 54 interstellar dust clouds 54 Magnetars 54 moon Dione 54 Ithaca Chasma 54 graphite whiskers 54 copper oxide superconductors 54 Antarctic Dry Valleys 54 Chi Cygni 54 volcanic plumes 54 Carina constellation 54 Vastitas Borealis 54 Sunspots 54 electromagnetic flux 54 peridotites 54 Globular clusters 54 lunar highlands 54 magnetic dipole 54 paramagnetic 54 cosmological distances 54 Omega Centauri 54 protoplanets 54 Pleiades star 54 tidally 54 planets orbiting stars 54 SN #gy 54 Trifid 54 moons Io 54 thermal gradient 54 Upsilon Andromedae b 54 Solar flares 54 stratus clouds 54 planetary orbits 54 magnetic fields 54 Mg Fe 54 convection 54 anisotropy 54 earthshine 54 magnetic flux 54 punctate 54 Fornax cluster 54 maser emission 54 blazars 54 undersea volcanoes 54 advanced argillic alteration 54 Ring Nebula 54 constellation Perseus 54 giant elliptical galaxies 54 spinning neutron 54 hydrated minerals 54 ecliptic 54 methyl cyanide 54 Enceladus 54 Eta Carinae 54 infall 54 magnetic polarity 54 BLG #Lb 54 Doppler shifts 54 cm -1 54 circumstellar dust 54 Jovian moon 54 adatoms 54 blazar 54 CoRoT 7b 54 reddish orange hue 54 keV 54 temperature gradient 54 ringed planet 54 galactic magnetic 54 Kuiper Belt objects 54 magnetar 54 felsic tuff 54 equatorial Pacific Ocean 54 Cabeus crater 54 lava fountains 54 comet Tempel Tuttle 54 hydrated electron 54 Arches Cluster 54 baryonic 54 dusty disks 54 Earth radii 54 collisional 54 Helix Nebula 54 water vapor condenses 54 Small Magellanic Cloud 54 intracluster 54 Quadrantid meteor shower 54 magnetic dynamo 54 merging galaxies 54 microcavity 54 sized planets orbiting 54 millimeter wavelengths 54 aurorae 54 Doradus 54 meteoroids 53 Martian equator 53 emitted photons 53 infrared photons 53 N#E# 53 exo planets 53 comets asteroids 53 phyllosilicate 53 Caloris basin 53 martensite 53 waxing crescent moon 53 kaolinite 53 spherically symmetric 53 exoplanet orbiting 53 relativistic protons 53 meteorite impacts 53 asteroids orbiting 53 cirrus 53 helium ions 53 Shackleton crater 53 Kelvin -# 53 celestial equator 53 water vapor 53 cosmic microwave background 53 isotherms 53 permanently shadowed regions 53 sun corona 53 observable universe 53 Orcus Patera 53 relativistic jets 53 Martian polar 53 absorbs photons 53 circular orbits 53 blue straggler 53 collagen fibrils 53 basalts 53 olivine 53 Martian craters 53 lunar equator 53 olivine mineral 53 extragalactic 53 Pegasi 53 galaxy clusters 53 Methone 53 Jupiter Uranus 53 nuclei 53 amphibolite facies 53 redshifted 53 mineral assemblages 53 volcanic magma 53 comet McNaught 53 ionize 53 solar radii 53 Jovian planets 53 baryon 53 TrES 53 KH #D 53 barometric pressures 53 masers 53 polar caps 53 overlying layers 53 oxygen ions 53 gravitational pulls 53 pyroclastic 53 Fram Strait 53 RXTE 53 torus 53 meridional 53 Antennae Galaxies 53 solar irradiance 53 umbral shadow 53 sunspot 53 yardangs 53 Virgo Cluster 53 Type 1a supernovae 53 ionized oxygen 53 calcic 53 supermassive 53 Cassini flybys 53 irradiance 53 type Ia supernova 53 Geminid shower 53 continental crust 53 faint galaxies 53 polarimetry 53 olivine crystals 53 cumulonimbus 53 CMB photons 53 crystal lattices 53 ray Space Telescope 53 VISTA telescope 53 stellar occultation 53 CAIs 53 flood basalts 53 Aram Chaos 53 granitoids 53 protoplanet 53 volcanically active 53 sundog 53 gamma ray observatory 53 isotope fractionation 53 massifs 53 highly collimated 53 Earth magnetotail 53 asteroids comets 53 infalling 53 Oceanus Procellarum 53 binary asteroid 53 cratons 53 proto planetary disks 53 submillimeter wavelengths 53 Ontario Lacus 53 magmatism 53 carbonaceous chondrites 53 sulphate aerosols 53 constellation Orion 53 impactors 53 topological defects 53 unpolarized 53 icy crust 53 Saturnian system 53 trimers 53 potassium atoms 53 coronal heating 53 stratovolcano 53 constellation Auriga 53 dry airmass 53 called lobate scarps 53 constellation Pisces 53 sulfate aerosols 53 chondrites 53 Eagle Nebula 53 lithium atoms 53 planetary nebulas 53 crescent Moon 53 Terahertz waves 53 basaltic 53 ultraviolet wavelength 53 oppositely directed 53 atmospheric convection 53 carbonate globules 53 Saturn moon Iapetus 53 Cepheids 53 planet Uranus 53 photosynthetically 53 Samuel Oschin Telescope 53 electron ion 53 fainter objects 53 Bose Einstein condensate BEC 53 zodiac constellations 53 Saturn outermost ring 53 Maunder minimum 53 backscattered 53 Earthlike planets 53 axial tilt 53 obscuration 53 clathrates 53 shadowy craters 53 electron pairs 53 planet orbiting 53 clasts 53 subglacial lakes 53 gravitational tugs 53 weakly interacting 53 heliopause 53 Fermi telescope 53 galactic mergers 53 inner asteroid belt 53 constellation Gemini 53 galactic nuclei 53 silicic 53 HARPS instrument 53 Saharan Desert 53 Pluto Charon 53 lapilli 52 Andromeda galaxy 52 oxygen isotopes 52 diffraction patterns 52 Kelvin Helmholtz 52 Galileo spacecraft 52 Stephan Quintet 52 VIRTIS instrument 52 Galactic cosmic rays 52 polariton 52 galactic equator 52 spectroscopically 52 dwarf spheroidal galaxies 52 aerosol concentrations 52 poleward 52 VLTI 52 cumulus clouds 52 atmospheric circulations 52 stratospheric clouds 52 fluxes 52 Iapetus 52 tectonically 52 Dust devils 52 Terra Meridiani 52 isotherm 52 cosmic cannibal 52 cratered highlands 52 Serpens Cauda 52 Geminid meteors 52 pn junction 52 anticyclones 52 blackbody 52 X ray telescopes 52 Neptune Uranus 52 liquid droplets 52 Titan smoggy 52 sulfate salts 52 wavefronts 52 Cancri e 52 micrometre sized 52 periodic oscillations 52 waxing gibbous moon 52 polygon shaped 52 equatorial regions 52 planets 52 gibbous 52 Hellas Planitia 52 rifting 52 star Beta Pictoris 52 quasar 52 Arabia Terra 52 planets asteroids 52 geologically active 52 specular reflection 52 delocalized 52 afterglows 52 asteroidal 52 Beta Pictoris b 52 Type Ia 52 V# Sgr 52 HM Cancri 52 rubidium vapor 52 Aurigae 52 macroscopically 52 sunspots 52 Henize #-# 52 rayed crater 52 GPa 52 transiting planets 52 rubidium atom 52 Eta Aquarid meteor shower 52 cosmic rays 52 lenticular clouds 52 gravitational perturbations 52 mesocyclone 52 magnetic excitations 52 lunar perigee 52 Supernovae 52 magma chambers 52 Bullet Cluster 52 Jupiter Ganymede 52 spectral fingerprints 52 quasars 52 comet nucleus 52 superfluid 52 tholins 52 ultraviolet photons 52 exciton 52 sediments deposited 52 hurricane eyewall 52 neutron spectrometer 52 distant supernovas 52 spectral fingerprint 52 trabeculae 52 moon Ganymede 52 hydrothermal fluid 52 substorms 52 proto planetary disk 52 moons Europa 52 distant galaxies 52 frigid arctic 52 magmatic 52 Hanny Voorwerp 52 gravitational radiation 52 atmospheric aerosols 52 polaritons 52 ocean basins 52 oxygen isotopic 52 tropic regions 52 isotopic compositions 52 iron pnictides 52 Perseus Cluster 52 proto galaxies 52 HIP #b 52 Konacki 52 Fig. 2A 52 ignimbrite 52 globular cluster 52 Tempel Tuttle 52 CoRoT #b 52 Cygnus Lyra region 52 X ray spectrometer 52 branes 52 ESA XMM Newton 52 -# º C [002] 52 unaided eye 52 hydrothermal activity 52 Lyman alpha 52 annealing temperature 52 X ray afterglow 52 Scorpii 52 orbits Saturn 52 nightside 52 temperature inversions 52 copper oxides 52 COROT 7b 52 Perseus cluster 52 Yellowstone caldera 52 magnetic monopoles 52 gaseous planet 52 hydrocarbon haze 52 barred spiral galaxy 52 redshifts 52 Haumea 52 antiferromagnetic 52 Ultraviolet radiation 52 southern constellation Carina 52 MWIR 52 crustal thickness 52 Martian crust 52 R Coronae Borealis 52 RRATs 52 Galilean satellites 52 gravity warps 52 Planck satellite 52 brittle deformation 52 arcseconds 52 fissure eruption 52 Supernova #A 52 radiative transfer 52 YORP effect 52 globular clusters 52 inhomogeneities 52 asterism 52 NGC #A 52 GQ Lupi 52 asteroid Vesta 52 Fomalhaut 52 GZK cutoff 52 northwesterly flow 52 starlike 52 protoplanetary discs 52 geomagnetic activity 52 sunglint 52 bilayer 52 nanomesh 52 oxygen isotope 52 convective clouds 52 cm -3 52 brown dwarfs 52 rotating neutron stars 52 spectroscopic measurements 52 faint wisps 52 BP Psc 52 moon Charon 52 particle acceleration 52 Io Europa 52 brownish haze 52 Alycia Weinberger 52 dwarf galaxy 52 foreground galaxy 51 galaxies 51 GRB #A 51 kpc 51 Helix nebula 51 nanobelts 51 SINFONI 51 gravitational redshift 51 globular star 51 gaseous methane 51 dipole moment 51 absorb photons 51 Planitia 51 protoplanetary disc 51 infrared radiation 51 Encke gap 51 magnetization reversal 51 planets Uranus 51 exoplanetary systems 51 vibrational modes 51 diffracted 51 elliptical galaxies 51 axions 51 transiting planet 51 Goldilocks zone 51 exoplanets planets 51 star Gliese 51 soliton 51 SN#A 51 atmospheric opacity 51 cometary material 51 elliptical galaxy NGC 51 ESO PR 51 Infrared Thermal Imaging Spectrometer 51 distant supernovae 51 microcavities 51 Cassini flyby 51 collimated 51 coronal 51 dirty snowballs 51 super Earths 51 refractive indices 51 ultraviolet sunlight 51 spiral galaxy 51 diffraction pattern 51 bandgaps 51 uppermost layer 51 syenite gneiss 51 Planck telescope 51 zodiacal constellations 51 sericitization 51 supermassive black hole 51 Milky Way galaxy 51 extrasolar planets orbiting 51 gravitational attraction 51 Late Paleozoic 51 Ophiuchi 51 Bose Einstein condensates 51 Pavonis Mons 51 pyroclastics 51 solar neutrinos 51 stellar occultations 51 GRB# 51 semidesert 51 x ray beams 51 katabatic winds 51 TNOs 51 Rayleigh scattering 51 thermal diffusivity 51 galaxy redshift 51 reddish hue 51 giant elliptical galaxy 51 pions 51 tropospheric ozone 51 lightwaves 51 Explosive eruptions 51 nimbus clouds 51 Quadrantids 51 toroid 51 Capricornus 51 reionization 51 gravitational acceleration 51 gibbous moon 51 spatially coherent 51 sulfide veins 51 X ray beam 51 shorter wavelengths