Related by context. Frequent words. (Click for all words.) 68 planet orbits 65 Cancri 63 HD #b [002] 63 planet orbiting 63 extrasolar planet 62 Eta Carinae 62 magnetar 60 COROT 60 brown dwarf 60 Gliese #g 59 GRB # 59 Gliese 58 gamma ray burst 58 Orion Nebula 58 microlensing 58 exoplanets 57 XMM Newton 57 orbits 57 Milky Way Galaxy 57 distant galaxy 57 Andromeda galaxy 57 observable universe 57 Large Magellanic Cloud 57 Gamma ray bursts 56 Kuiper belt 56 moon Charon 56 pulsar 56 dwarf galaxy 56 Crab Nebula 56 galaxy cluster 56 globular cluster 56 ringed planet 56 supernova explosion 56 planets orbiting 56 exoplanet 56 rocky planets 56 extrasolar planets 56 X ray emission 55 Sedna 55 super Earths 55 Galaxy Evolution 55 comet nucleus 55 Jupiter Saturn Uranus 55 constellation Leo 55 Fomalhaut 55 galaxy 55 supernova remnant 54 spiral galaxy 54 planetary nebula 54 redshift 54 brown dwarfs 54 GRBs 54 orbiting 54 supernova 54 neutron star 54 interstellar dust 54 accretion disk 53 celestial object 53 ecliptic 53 EPOXI 53 globular clusters 53 Andromeda Galaxy 53 ejecta 53 elliptical galaxies 53 perigee 53 planets 53 Iapetus 53 spiral galaxies 53 Comet McNaught 53 constellation Perseus 53 visible wavelengths 53 gravitationally 53 habitable planets 52 Earth magnetosphere 52 Milky Way galaxy 52 Jupiter Saturn 52 interplanetary spacecraft 52 Mimas 52 Voyager spacecraft 52 Betelgeuse 52 heliosphere 52 outer planets 52 supernova explosions 52 supermassive black hole 52 comet 52 solar nebula 51 hot Jupiters 51 OGLE 51 planetoid 51 Jupiter moons 51 Tempel 1 51 New Horizons spacecraft 51 supernovae 51 subatomic particle 51 elliptical orbit 51 Haumea 51 interstellar medium 51 Saturn moon Enceladus 51 nebula 51 fainter 51 Lutetia