Related by context. Frequent words. (Click for all words.) 73 HD #b [002] 72 supernova explosion 70 brown dwarf 69 planet orbiting 68 neutron star 68 exoplanets 67 extrasolar planet 67 rocky planets 66 Milky Way Galaxy 66 quasar 66 brown dwarfs 66 globular clusters 66 extrasolar planets 66 planets orbiting 65 galaxy cluster 65 exoplanet 65 gamma ray burst 65 pulsar 65 elliptical galaxies 65 Sedna 64 planets 64 distant galaxy 64 supernova 64 galaxies 64 orbits 64 Milky Way galaxy 63 quasars 63 galaxy clusters 63 galaxy 63 supernovae 62 spiral galaxy 62 supermassive black hole 62 redshift 62 dwarf galaxies 60 Milky Way 60 Gliese 60 comet 60 Betelgeuse 60 neutron stars 60 distant galaxies 60 spiral galaxies 60 interstellar medium 59 ringed planet 59 nebula 59 asteroid 59 outer planets 58 gamma ray bursts 58 supermassive black holes 58 neutrino 58 Saturn rings 58 supernovas 58 Saturn moons 58 Kuiper Belt 57 comets 57 spacetime 57 atomic nuclei 57 cosmic ray 57 orbiting 57 pulsars 57 XMM Newton 57 nebulae 56 radioactive decay 56 hydrogen atoms 56 deuterium 56 UB# [003] 56 Enceladus 56 interstellar dust 56 circular orbit 56 fainter 56 asteroids 56 moon Titan 56 habitable zone 56 Iapetus 55 astronomers 55 neutrinos 55 gravitational waves 55 Saturn moon 55 heliosphere 55 gravitational 55 perigee 55 magnetosphere 55 unaided eye 55 Uranus 55 nuclei 54 elliptical orbit 54 oscillations 54 Spitzer Space Telescope 54 atoms 54 infrared wavelengths 54 gamma rays 54 olivine 54 WMAP 54 sunspot 54 Solar System 54 dynamical 54 cosmic rays 54 asteroid belt 54 positrons 54 cosmic microwave background 54 gravitational pull 54 luminosity