Related by context. Frequent words. (Click for all words.) 60 HD #b [002] 57 planets 55 extrasolar planets 55 starlight 54 brown dwarfs 54 nebulae 54 distant galaxy 54 extrasolar planet 53 planet orbiting 53 orbits 53 exoplanet 53 brown dwarf 53 interstellar dust 52 planets orbiting 52 galaxy cluster 52 supernova 52 terrestrial planets 52 occultation 52 interstellar medium 52 quasar 51 Sedna 51 Betelgeuse 51 rocky planets 51 Pleiades 51 neutron star 51 nebula 51 quasars 50 Halley Comet 50 pulsar 50 comet 50 neutrino 50 gamma ray burst 50 heliosphere 50 galaxies 50 redshift 50 globular clusters 50 cosmic rays 50 celestial bodies 50 elliptical galaxies 50 magnetosphere 50 fainter 50 spiral galaxies 50 exoplanets 49 infrared wavelengths 49 moons 49 gamma rays 49 galaxy 49 Saturn rings 49 constellations 49 gravitational waves 48 Milky Way Galaxy 48 distant galaxies 48 supernova explosion 48 supermassive black hole 48 astronomers 48 orbiting 48 XMM Newton 48 unaided eye 48 spiral galaxy 48 supernovae 48 angular momentum 48 infrared radiation 48 auroras 48 Uranus 47 Saturn moons 47 pulsars 47 asteroid 47 galaxy clusters 47 gamma ray bursts 47 ellipse 47 comets 47 Milky Way galaxy 47 neutron stars 47 Milky Way 46 spacetime 46 Iapetus 46 celestial objects 46 Enceladus 46 Gliese 46 galactic 46 asteroids 46 radii 46 corona 45 supernovas 45 luminosity 45 Earth asteroids 45 aurora 45 cometary 45 magnetic fields 45 outer planets 45 cosmic dust 45 cosmic ray 45 astrophysical 45 interstellar space 45 planetary 45 dwarf galaxies 45 Spitzer Space Telescope 45 neutrinos 45 meteor 45 hydrogen atom 45 Pluto