Related by context. Frequent words. (Click for all words.) 59 planet orbits 58 Cancri 57 HD #b [002] 57 planet orbiting 55 solar nebula 54 Fomalhaut 54 Gliese #g 53 Eta Carinae 53 orbits 53 Uranus 52 Kuiper belt 52 Crab Nebula 52 planets orbiting 52 Solar System 51 magnetar 51 XMM Newton 51 observable universe 51 COROT 51 planets 51 Pluto 51 Gliese 51 brown dwarf 51 super Earths 50 globular cluster 50 Milky Way Galaxy 50 GeV 50 terrestrial planets 50 habitable planet 50 galaxy cluster 50 interplanetary spacecraft 50 extrasolar planet 50 distant galaxy 50 dwarf galaxy 50 galaxy 50 Sedna 49 infrared wavelengths 49 Jupiter Saturn 49 radioactive decay 49 outer planets 49 supernova explosion 49 orbiting 49 comet 49 unaided eye 49 supernova 49 planetoid 49 dwarf planet 49 Andromeda galaxy 48 elliptical orbit 48 exoplanets 48 circular orbit 48 Orion Nebula 48 moon Charon 48 Andromeda Galaxy 48 Jupiter Saturn Uranus 48 New Horizons spacecraft 48 Gamma ray bursts 48 Haumea 48 gravitational wave 48 quasar 48 interstellar dust 48 UB# [003] 48 Earth magnetosphere 48 Voyager spacecraft 48 supernova explosions 48 orbited 48 GRBs 47 brown dwarfs 47 astronomical objects 47 z = 47 Alpha Centauri 47 Large Magellanic Cloud 47 occultation 47 quasars 47 oxygen atom 47 exoplanet 47 redshift 47 neutron star 47 Milky Way 47 rocky planets 47 globular clusters 47 celestial object 47 extrasolar planets 47 Orbiting 47 microlensing 47 nebula 47 Cabeus crater 46 comet nucleus 46 ringed planet 46 Kuiper Belt 46 comets 46 luminosity 46 planet 46 muon 46 supernova remnant 46 Venusian 46 Enceladus 46 Milky Way galaxy 46 Earth 46 perigee 46 dwarf galaxies 46 ejecta