Related by context. Frequent words. (Click for all words.) 70 HD #b [002] 69 extrasolar planet 65 magnetar 65 rocky planets 64 exoplanet 64 super Earths 63 brown dwarfs 63 planet orbiting 63 supernova explosion 63 gamma ray burst 63 brown dwarf 63 exoplanets 62 dwarf galaxy 61 habitable planets 61 Eta Carinae 61 hot Jupiters 61 quasar 61 distant galaxy 61 terrestrial planets 60 globular cluster 60 planets 60 cosmic microwave background 60 neutrino 60 galaxy cluster 60 celestial object 60 planets orbiting 59 GRBs 59 Enceladus 59 Earth magnetosphere 59 extrasolar planets 59 Andromeda Galaxy 59 Milky Way Galaxy 59 habitable planet 59 comet nucleus 59 COROT 59 Orion Nebula 59 quark gluon plasma 59 supernova remnant 58 Sedna 58 Saturn rings 58 moon Titan 58 Gliese 58 UB# [003] 58 Milky Way galaxy 58 ringed planet 58 globular clusters 58 XMM Newton 57 habitable zone 57 elliptical galaxies 57 X ray emission 57 WIMPs 57 cosmological constant 57 Opportunity rover 57 Jupiter moons 57 Andromeda galaxy 57 Saturn moons 57 astronomers 57 quasars 57 dwarf galaxies 57 neutron star 57 ejecta 56 supernova 56 Saturn moon 56 distant galaxies 56 galaxies 56 Large Magellanic Cloud 56 Kuiper Belt 56 gamma ray bursts 56 constellation Leo 56 meteoroid 56 spiral galaxy 56 neutrinos 56 galaxy clusters 56 infrared telescope 56 muon 55 Milky Way 55 ionized gas 55 spiral galaxies 55 supernova explosions 55 supersymmetry 55 redshift 55 outer planets 55 substorms 55 supernovae 55 supermassive black hole 55 dwarf planet 55 buckyball 55 asteroid 55 Saturn moon Enceladus 55 astronomical objects 55 WMAP 55 moon Europa 54 Itokawa 54 NASA Kepler 54 gravitational lensing 54 comet Wild 54 celestial bodies 54 spacetime 54 comet 54 pulsar 54 cosmologists