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(Click for frequent words.) 66 dense clumps 64 proplyds 64 merging galaxies 64 protostars 63 Neutron stars 62 sunlike star 61 gaseous planets 61 planetary embryos 61 planetesimals 60 circumstellar 60 icy moons 60 planets moons 60 stellar nurseries 60 lunar crust 60 gravitationally bound 60 planets asteroids 60 Orion nebula 60 planets comets 59 dusty cocoons 59 Galilean moons 59 galaxies collide 59 sunlike stars 59 gaseous planet 59 Kuiper belt objects 59 planets orbiting sun 59 accretion disks 59 interstellar cloud 59 galactic halo 59 dwarf galaxies 59 protoplanetary discs 59 planets 58 Globular clusters 58 protoplanetary disks 58 Eagle Nebula 58 habitable zones 58 Spiral galaxies 58 planets circling stars 58 planetary nebulas 58 protoplanets 58 Sagittarius dwarf galaxy 58 eccentric orbits 58 globulars 58 moons orbiting 58 rocky planets 58 red supergiants 57 comets orbiting 57 planets orbits 57 spherical halo 57 KBOs 57 nebulae 57 exo planets 57 supermassive 57 HL Tau 57 red supergiant 57 lensing galaxy 57 terrestrial planets 57 protoplanetary 57 planetoids 57 Beta Pictoris 57 blue supergiant 57 Earthlike planets 57 planetary nebulae 57 Upsilon Andromedae 56 tidal tails 56 globular clusters 56 zodiacal dust 56 Hot Jupiters 56 spiral galaxies 56 retrograde orbit 56 spheroidal 56 volcanic lava flows 56 Trojan asteroids 56 galactic cores 56 Flower buds 56 Io volcanoes 56 Zeta Ophiuchi 56 planetary nebula 56 accretion disk 56 Galilean satellites 56 circumstellar disk 56 IRAS #-# 56 ionized hydrogen 56 Earthlike 56 cumulus cloud 56 silicate dust 56 inhabitable planets 56 Kuiper Belt Objects 56 galaxy M# [002] 56 Henize #-# 56 Tarantula Nebula 55 galaxies 55 planemos 55 protoplanetary disc 55 floating orbs 55 Neptune Uranus 55 chondrules 55 icy comets 55 protostar 55 hydrated minerals 55 protoplanetary disk 55 colliding galaxies 55 supergiant stars 55 exoplanets orbiting 55 dusty disks 55 infalling 55 millisecond pulsars 55 galactic disk 55 constellation Carina 55 giant elliptical galaxies 55 Dumbbell Nebula 55 GJ#b 55 elongated orbits 55 Uranus Jupiter 55 circular orbits 55 phyllosilicates 55 Carina Nebula 55 nebular 55 planets orbiting 55 gravitational interactions 55 HII regions 55 Andromeda galaxy 55 nebula NGC 55 supernova explosions 55 Rosette Nebula 55 planets orbiting stars 55 comets asteroids 55 dirty snowballs 55 moonlets 55 supernova remnants 55 interstellar dust grains 55 Trifid Nebula 55 submillimeter galaxies 55 SMBHs 54 reflection nebula 54 Red Rectangle 54 martian rocks 54 Wolf Rayet star 54 Pleiades star 54 protoplanet 54 pinwheel shaped 54 extrasolar 54 super Earths 54 Kuiper belt 54 galaxy M# [001] 54 asteroids comets 54 planetesimal 54 Coma Cluster 54 nebula 54 Super Earths 54 yardangs 54 Trapezium 54 magnetospheres 54 Milky Way galaxy 54 plutoids 54 starburst galaxies 54 constellation Cassiopeia 54 AU Mic 54 Bok globules 54 emission nebula 54 Pleiades cluster 54 Epsilon Eridani 54 constellation Hercules 54 elliptical galaxies 54 Small Magellanic Cloud 54 neutron star 54 Planetary nebulae 54 interstellar clouds 54 active galactic nuclei 54 luminous galaxies 54 elliptical galaxy 54 blobs 54 OGLE TR #b 54 circumstellar disks 54 dust mote 54 Hanny Voorwerp 54 brown dwarfs 54 AB Aurigae 53 interacting galaxies 53 constellation Andromeda 53 outermost layers 53 GQ Lupi 53 outer corona 53 magma ocean 53 colloidal crystals 53 unmanned probes 53 meteor craters 53 filamentary structures 53 Martian craters 53 inner asteroid belt 53 distant suns 53 Comet Tempel Tuttle 53 Horsehead Nebula 53 lunar craters 53 waning crescent moon 53 Orion constellation 53 ejecta 53 martian landscape 53 sized planets orbiting 53 moon Ganymede 53 molten magma 53 ionized gas 53 habitable planets 53 axions 53 X ray binaries 53 chromosphere 53 constellation Taurus 53 Epsilon Aurigae 53 Triangulum 53 galactic clusters 53 gravitationally 53 polar craters 53 galaxies nebulae 53 Kuiper Belt objects 53 proto galaxies 53 zodiacal light 53 silicate mantle 53 photosphere 53 VY Canis Majoris 53 prominences 53 asteroidal 53 ionised gas 53 BP Psc 53 gravitational pulls 53 volcanic moon Io 53 GJ #b [002] 52 globular star 52 hemoglobin molecules 52 mineral olivine 52 planet HD #b 52 planets orbiting distant 52 starburst galaxy 52 gyres 52 permanently shadowed craters 52 interstellar dust 52 constellation Cetus 52 cumulus 52 proto planetary disk 52 neutron stars 52 Orion Nebula 52 X ray binary 52 constellation Virgo 52 nebulosity 52 supernovae explode 52 Extrasolar planets 52 spiral nebulae 52 Upsilon Andromedae b 52 distant quasars 52 Omega Centauri 52 Antennae galaxies 52 Beachcombers collect tarballs 52 Milky Way halo 52 Antennae Galaxies 52 Gravitational waves 52 mica sheets 52 distant galaxies 52 giant elliptical galaxy 52 highly magnetized neutron 52 Spitzer infrared 52 meteor impacts 52 Veil Nebula 52 Syrtis Major 52 AGNs 52 Corot 7b 52 Fomalhaut b 52 hot Jupiters 52 spherical shapes 52 Mathieu Amalric stumbles 52 lava tubes 52 Saturn Enceladus 52 hematite mineral 52 filamentary structure 52 brownish haze 52 zodiac constellations 52 cosmic cannibal 52 relativistic jets 52 infalling gas 52 dwarf galaxy 52 star Beta Pictoris 52 gravitational tugs 52 bee stingers 52 cometary debris 52 galactic nuclei 52 belt polymetallic 52 tholins 52 moons Phobos 52 Splintered wood 52 faint meteors 52 exoplanets planets 52 HARPS instrument 52 Saturn Jupiter Uranus 52 planets astronomers 52 Bug Nebula 52 Beta Pictoris b 52 Saturn outermost ring 51 interstellar particles 51 hypervelocity stars 51 nebulas 51 HD# [002] 51 TNOs 51 HM Cancri 51 crystalline silicates 51 lobate scarps 51 galactic mergers 51 Oort cloud 51 Saturn magnetosphere 51 constellations Cygnus 51 proto cluster 51 subsurface ocean 51 galaxy cluster 51 Tarantula nebula 51 Martian dust 51 supernova explosion 51 supermassive black holes 51 Wolf Rayet stars 51 spacecraft flyby 51 magnetars 51 emit X rays 51 Jupiter Saturn 51 moons 51 moons circling 51 Perseus Cluster 51 retroreflector 51 asteroids WISE 51 coronal mass ejections CMEs 51 binary asteroids 51 planets atmospheres 51 GJ #b [001] 51 Jovian moons 51 rotating neutron stars 51 clusters 51 Geminga 51 jovian 51 polygonal shapes 51 moons JAXA 51 wispy cirrus clouds 51 moons Io 51 spinning neutron stars 51 reddish hues 51 Higgs bosons 51 outermost planets 51 molten droplets 51 sunspot cluster 51 solar nebula 51 Helix Nebula 51 Trifid 51 galaxy clusters 51 celestial sphere 51 helium nuclei 51 active galactic nucleus 51 moon Mab 51 moon Io 51 Arsia Mons 51 globular cluster 51 Fornax cluster 51 COROT 7b 51 polar vortex 51 Andromeda Galaxy 51 Saturn outermost 51 Candor Chasma 51 meteoroids 51 ringed planet 51 Milky Way 51 Cat Paw Nebula 51 lunar soil 51 dust devils 51 Elysium Planitia 51 spiral galaxy NGC 51 KH #D 51 retrograde orbits 51 Ring Nebula 51 moon Europa 51 Dust devils 51 electrons positrons 51 MG J# +# 51 planets Uranus 51 giant gaseous planets 51 Io Europa 51 sundog 50 IntergalaticEarth 50 gravitational lenses 50 extrasolar planets 50 hydrated silica 50 gaseous envelope 50 Kuiper Belt object 50 Large Magellanic Cloud 50 Coma cluster 50 solar prominences 50 Jupiter Saturn Uranus 50 tidal bulge 50 distant supernovae 50 SN #C 50 HiRISE image 50 blue straggler 50 filamentary 50 interstellar dust clouds 50 Lagoon Nebula 50 seafloor sediment 50 Fermi telescope 50 thicker panes 50 basalt volcanic 50 ellipsoids 50 gravity warps 50 Exoplanets 50 P/# A2 50 gravitational interaction 50 extrasolar planets orbiting 50 water vapor condenses 50 NGC #A 50 icicle shaped 50 mysterious uncharted 50 Wolszczan 50 dust motes 50 eclipsing binary 50 fainter objects 50 WASP #b 50 brightest meteors 50 Magellanic Clouds 50 CoRoT #b 50 polygon patterns 50 smallest exoplanet 50 coronal loops 50 spherules 50 pulsars 50 VB #b 50 circumstellar dust 50 interstellar grains 50 hexagonal mirrors 50 earthlike planets 50 Venus Neptune Uranus 50 ejecta blanket 50 shallow depressions 50 millisecond pulsar 50 supercells 50 SN #A 50 Geminid meteors 50 supernovae 50 rubbly 50 galactic bulge 50 dwarf planets 50 Gliese #G 50 silicon monoxide 50 SN#A 50 stratus clouds 50 Lander robotic arm 50 Monoceros 50 mineral hematite 50 whiz harmlessly 50 ionized gases 50 binary asteroid 50 interstellar dust tiny 50 chlorophyll molecules 50 planet Gliese #g 50 calderas 50 cosmic phenomena 50 undersea volcanoes 50 comet Tempel Tuttle 50 Hawaii van Dokkum 50 energetic electrons 50 Mendra wife 50 HD#b 50 ionized molecules 50 faraway galaxies 50 ecliptic plane 50 THEMIS satellites 50 northern arctic plains 50 Noctilucent clouds 50 galaxy 50 circular depressions 50 Milky Way Galaxy 50 X ray wavelengths 50 asterism 50 moons orbiting Pluto 50 Butterfly Nebula 50 Kepler Telescope 50 shadowy craters 50 supergiant star 50 dust enshrouded 50 trans Neptunian objects 50 planet WASP #b 50 Omega Nebula 50 moon Phobos 50 interstellar molecules 50 geostationary orbits 50 constellation Aquarius 50 cosmological distances 50 Alfven waves 50 spiral galaxy M# 50 neutralinos 50 Galaxies 49 bedrock outcropping 49 greenish glow 49 planet orbits 49 ionized particles 49 Virgo cluster 49 Mercury Uranus 49 lenticular clouds 49 lightly greased baking 49 novae 49 landforms 49 congealed grease 49 Io Europa Ganymede 49 heavily cratered 49 ULIRGs 49 spherically symmetric 49 solar corona 49 twin suns 49 supercontinents 49 Kepler 9c 49 SMBH 49 Martian meteorites 49 smallest exoplanets 49 inner moons 49 Haumea 49 olivine crystals 49 waxing crescent moon 49 HD #b [002] 49 semicircles 49 runaway thermonuclear 49 supersymmetric particles 49 orange orbs 49 extrasolar planetary systems 49 quasars 49 carbonaceous chondrite meteorites 49 constellation Lyra 49 moons Europa 49 massive sulphide horizons 49 Asteroid Belt 49 eclipsing binaries 49 spiral galaxy 49 Orionids 49 micrometeoroid impacts 49 RS Ophiuchi 49 supernovas 49 jet contrails 49 Kuiper belt object 49 Solar TErrestrial RElations Observatory 49 comets 49 massifs 49 comet particles 49 silicates 49 telescope eyepiece 49 vortexes 49 haloes 49 transiting planets 49 Spitzer Space Telescope 49 Bloody sandals 49 Great Conveyor Belt 49 microlensing events 49 volcanic vents 49 supernovae explosions 49 mesocyclone 49 Mars Neptune Uranus 49 magnetic monopoles 49 permanently shadowed regions 49 Glass shards 49 Meridiani 49 Quadrantids 49 leafless branches 49 Platonic solids 49 motorized rasp 49 SN #gy 49 moon Charon 49 phyllosilicate 49 altocumulus 49 humanoid creatures 49 stony meteorites 49 felsic tuff 49 TrES 4 49 moon Dione 49 comet McNaught 49 Reiner Gamma 49 pinon pines 49 constellation Eridanus 49 drifting westward 49 mu Arae 49 glows brightly 49 Neptune Uranus Jupiter 49 moon Mimas 49 icy moon Enceladus 49 baryonic 49 vortices 49 V# Mon 49 tealight candles 49 Endurance crater 49 hibiscus blossoms 49 distant galaxy 49 moonlet 49 Saturnian moons 49 star Gliese 49 X ray emission 49 lotus leaves 49 lava domes 49 Palaeozoic sedimentary 49 baryons 49 Jupiter Uranus 49 dynamical evolution 49 crossbedding 49 gray hematite mineral 49 Cosmic rays 49 Type 1a supernovae 49 constellation Scorpius 49 superdense 49 scrubby vegetation 49 ray florets 49 Severed limbs 49 Cygnus Lyra region 49 fossilized fragments 49 galactic collisions 49 convex lenses 49 comet tail 49 oceanic plates 49 nucleobases 49 IRC +# 49 interstellar medium 49 outer planets 49 called lobate scarps 49 solidified lava 49 Pluto Charon 49 jarosite 49 most elegant playhouses 49 CoRoT satellite 49 atomic lattice 49 finely layered 49 BLG #Lb 49 oblongs 49 grassy mounds 49 Hyades cluster 49 Scorch marks 49 cumulous clouds 49 telescopes astronomers 49 constellation Centaurus 49 magnetar 49 Heliospheric Observatory SOHO 49 Tianyulong 49 constellation Perseus 49 magnetosphere 48 asteroids orbiting 48 COROT exo 3b 48 X ray emitting 48 comet Hale Bopp 48 reddish orange hue 48 Arches Cluster 48 constellation Aquila 48 cluster NGC 48 constellation Cygnus 48 Oort Cloud 48 virgin cypress trees 48 occultations 48 nuclei 48 supercontinent 48 Jupiter Ganymede 48 mica schist 48 Phoebe orbits 48 Cosmic Microwave Background 48 volcanic magma 48 gibbous 48 Great Orion Nebula 48 Spitzer infrared spectrograph 48 periodic dimming 48 What bothers Eriacho 48 supernova remnant 48 presolar grains 48 star Fomalhaut 48 Cancri 48 galaxy formation 48 lithium atoms 48 brown dwarfs stellar 48 Gliese #d 48 rainbow colored sheen 48 Stephan Quintet 48 IRAS 4B 48 magnetotail 48 Jovian moon 48 Supernovae 48 starbursts 48 abyssal plains 48 Nasa spacecraft 48 torus 48 Martian terrain 48 past boninite lavas 48 manganese atoms 48 manganese oxides 48 convective clouds 48 brown dwarf 48 algae mats 48 bloodstained bandages 48 rotating neutron 48 Saturn moon Mimas 48 spatial dimensions 48 stained crimson 48 lunar equator 48 branes 48 silicate iron 48 blade jutted 48 nanoholes 48 abyssal plain 48 Saturn moons 48 asteroids 48 Dwarf galaxies 48 lapilli 48 oppositely directed 48 Saturn Cassini 48 concretions 48 algae bloomed 48 SDSS II 48 relativistic particles 48 bodied Na'vi 48 slender crescent 48 Saturn moons Enceladus 48 magnetospheric 48 deep convective clouds 48 fluffy flakes 48 galaxy NGC# 48 Deep Impact eXtended Investigation 48 carbonate globules 48 Supermassive black 48 CMB radiation 48 supermassive black hole 48 spicule 48 constellation Sagittarius 48 Pluto moon Charon 48 asteroid Ceres 48 pinkish purple 48 carbonaceous chondrites 48 gamma ray emitting 48 Venus Uranus 48 flattened thatch roofed 48 Gusev crater 48 Carina constellation 48 assumed planets circling 48 extrasolar planet HD #b 48 Spider webs 48 planet Uranus 48 cumulonimbus 48 aspen leaves 48 funnel cloud darkened 48 carbonate minerals 48 olivine rich 48 icy crust 48 Mars Uranus 48 thin crescent 48 gravitational waves 48 constellation Monoceros 48 spherical objects 48 interstellar dust particles 48 clumped together 48 mottled gray 48 silicate rocks 48 photosynthetic microbes 48 exosolar planets 48 Saturnian moon 48 Virgo Cluster 48 baryon 48 puffy cumulus clouds 48 Jupiter moon Io 48 XO 3b 48 elliptical galaxy NGC 48 elliptical orbits 48 silicate crystals 48 Earth magnetosphere 48 moon Enceladus 48 TEGA ovens 48 reentry capsule 48 shadowed craters 48 Uranus Neptune 48 Subtropical Storm Otto 48 celestial phenomena 48 convective 48 soliton 48 Elliptical galaxies 48 Pluto Eris 48 glowed eerily 48 Orcus Patera 48 Lightning flickered 48 sulfate aerosols 48 WMAP satellite 48 galaxy NGC 48 superdense neutron star 48 landmasses 48 graphene sheet 48 pinkish brown 48 gelatinous mass 48 fruiting bodies 48 comets moons 48 planet magnetosphere 48 Gisela Winckler 48 Voyager spacecraft 48 unglazed clay 48 unmistakable primordial signs 48 golden orb 48 cinder cones 48 Waterspouts 48 sulfate salts 48 volcanic basalt 48 infrared wavelengths 48 constellation Leo 48 Kuiper Belt 48 hydrogen helium 48 NASA Cassini 47 turbidites 47 barred spiral galaxy 47 towering palm trees 47 R Coronae Borealis 47 icosahedral 47 habitable worlds 47 NASA Chandra 47 Valles Marineris 47 threadlike 47 atomic nuclei 47 PSR J# 47 exoplanets 47 Mars Jupiter Uranus 47 By STEVE HUNTER 47 silicate minerals 47 clumps 47 celestial bodies 47 spherical object 47 andesitic volcanic rocks 47 multi celled 47 Circinus 47 WISE spacecraft 47 X ray observatories 47 Venusian atmosphere 47 Type Ia 47 Digitized Sky Survey 47 distant galaxy clusters 47 twin Voyager spacecraft 47 Jovian atmosphere 47 Explorer WISE 47 supermassive stars 47 cometary impacts 47 Guatemala Pacaya volcano 47 scudding clouds 47 hydrocarbon haze 47 filthy mattress 47 granitoids 47 Viking orbiters 47 Dwarf Galaxies 47 lepidolite 47 Martian landscape 47 astronomical objects 47 globular cluster M# 47 thermonuclear reactions 47 glowing orbs 47 Planck telescope 47 spherical nanoparticles 47 lunar meteorites 47 wounded squatted helplessly 47 Comet Shoemaker Levy 47 cedar elms 47 sunlike 47 planet Gliese #c 47 coarse pyrite 47 orbital resonance 47 olivine mineral 47 Neptune Jupiter 47 Andromeda Galaxy M# 47 rotational axis 47 Unroll dough 47 Thick smoke obscured 47 transiting exoplanet 47 cumulus clouds 47 Galileo spacecraft 47 WIMPs 47 interplanetary dust 47 chalky white 47 Andromeda halo 47 equatorial regions 47 outer rind 47 pions 47 gamma ray observatory 47 subglacial lake 47 CoRoT 7b 47 Imaging Spectroradiometer MODIS instrument 47 crinoids 47 basaltic rocks 47 single celled microbes 47 featherlike 47 beautifully retro styled 47 Galactic cosmic rays 47 NASA rovers Spirit 47 smoggy atmosphere 47 Earthlike planet 47 Venus Jupiter Uranus 47 stately oak trees 47 gelatinous substance 47 biosignatures 47 galactic magnetic 47 brightnesses 47 hydrogen atoms 47 fronds waving 47 crustal rocks 47 Voorwerp 47 G#.# +#.# 47 rectangular prism 47 polar caps 47 distant supernovas 47 Fermions 47 star Spica 47 cirrus 47 lance shaped 47 absorbs photons 47 arid Baja 47 Aurigid 47 spicules 47 NASA rovers 47 glitter snowflakes 47 wispy clouds 47 constellation Ursa Major 47 coronal holes 47 silicate grains 47 linoleum tiles 47 superposed 47 NASA twin rovers 47 chondritic meteorites 47 astrophysical phenomena 47 tetrahedron 47 ghostly glow 47 Astronomers Discover 47 PASADENA Calif. Astronomers 47 planetary surfaces 47 orbs 47 ashy gray 47 Eridani 47 redshifted 47 Surface Composition Spectrometer 47 Sealed plastic bags 47 orangey yellow 47 Europa Ganymede 47 Caloris 47 Kepler telescope 47 Type Ia supernova 47 ESA XMM Newton 47 cosmic dust 47 Pollen grains 47 gravitational perturbations 47 tulip petals 47 Earthly contamination 47 telescopic observations 47 Galaxy Evolution 47 Hellas Basin 47 Hunga Tonga 47 blackholes 47 Cometary 47 exo planet 47 Wilkinson Microwave Anisotropy Probe 47 spinning neutron 47 blazars 47 outer crust 47 Saturn rings 47 meteoroid impacts 47 windblown sand 47 APXS 47 cosmic microwave background 47 sandy shorelines 47 organic molecules 47 WISE telescope 47 Corona Australis 47 pilchard baits 47 Solar System 47 equilateral triangles 47 Ulysses spacecraft 47 called gray hematite 47 exoplanet orbiting 47 Murchison meteorite 47 papery skin 47 constellation Pisces 47 Ontario Lacus 47 foreground galaxy 47 lunar highlands 47 chestnut oaks 47 petaled flowers 47 thin wispy clouds 47 southern supercontinent 47 optical telescopes 47 optical lattice 47 brass shell casing 47 colloidal crystal 47 Ius Chasma 47 lithospheric 47 Jennifer Rizzotti Sue 47 Canis Major 47 microbialites 47 plagioclase 47 cypress knees 47 cicada carcasses 47 electrons orbiting 47 quasar 47 Jupiter gravitational pull 47 cosmological theories 47 Ambulances sirens wailing 47 faint smudges 47 chenille stems 47 Orionid meteors 47 tungsten isotopes 47 starlike 47 swirling dust devils 47 Frostbitten skin 47 zodiacal constellation