Related by context. Frequent words. (Click for all words.) 54 redshift 53 planets orbiting 53 brown dwarfs 52 super Earths 52 orbits 51 Milky Way Galaxy 51 extrasolar planets 51 spiral galaxies 51 rocky planets 50 planets 50 GeV 50 unaided eye 50 brown dwarf 50 terrestrial planets 50 exoplanets 50 Large Magellanic Cloud 49 COROT 48 Andromeda Galaxy 48 planet orbiting 48 GRBs 48 HD #b [002] 48 ecliptic 48 distant galaxy 47 infrared wavelengths 47 globular cluster 47 elliptical galaxies 47 perigee 47 circular orbit 47 dwarf galaxies 47 orbiting 47 constellation Leo 47 hot Jupiters 47 Orion Nebula 47 Andromeda galaxy 47 nebulae 46 habitable planets 46 celestial bodies 46 celestial objects 46 celestial object 46 planetary 46 galaxy cluster 46 habitable zone 46 galaxy clusters 46 auroral 46 supernovae 46 Milky Way galaxy 46 astrophysical 46 neutron star 46 heliosphere 46 Sedna 45 spiral galaxy 45 Eta Carinae 45 Alpha Centauri 45 exoplanet 45 optical telescopes 45 interstellar medium 45 earths 45 X ray emission 45 gravitationally 45 galaxies 45 WM Keck Observatory 45 Earth asteroids 45 outer planets 45 nuclei 45 angular momentum 45 spectroscopic 45 Betelgeuse 44 astronomical objects 44 XMM Newton 44 suns 44 dwarf galaxy 44 abundances 44 distant galaxies 44 Gliese 44 Jupiter Saturn Uranus 44 Orbiting 44 micrometres 44 Phobos 44 galaxy 44 muon 44 magnetosphere 44 orbited 44 radii 43 WIMPs 43 Milky Way 43 femtoseconds 43 neutron stars 43 supernova explosions 43 gamma ray burst 43 habitable planet 43 spatial resolution 43 magnetar 43 electron volts 43 Kuiper Belt 43 NEOs 43 Solar System 43 globular clusters 43 accreting 43 Earth magnetosphere 43 Scorpius 43 micrometers