Related by context. Frequent words. (Click for all words.) 66 GRB # 65 magnetar 65 supernova remnant 65 supernova explosion 63 extrasolar planet 62 distant galaxy 62 dwarf galaxy 62 supernova remnants 62 Eta Carinae 61 microlensing 61 X ray emission 61 planetary nebula 61 brown dwarf 61 globular cluster 61 Gliese #g 61 gamma ray burst 60 Galaxy Evolution 60 supernova 60 Cancri 59 planet orbiting 59 accretion disk 59 galaxy cluster 59 Fomalhaut 59 Crab Nebula 59 exoplanet 59 Large Magellanic Cloud 58 globular clusters 58 Andromeda galaxy 58 XMM Newton 58 Spitzer Space Telescope 58 HD #b [002] 58 exoplanets 57 celestial object 57 quasars 57 redshift 57 pulsar 57 supernovae 57 Orion Nebula 57 pulsars 56 nebula 56 brown dwarfs 56 solar nebula 56 extrasolar planets 56 Hubble observations 56 elliptical galaxies 56 GRBs 55 cosmic microwave background 55 supernova explosions 55 Kuiper belt 55 distant galaxies 55 Gamma ray bursts 55 Andromeda Galaxy 55 Type Ia supernovae 55 astronomical objects 55 planets orbiting 55 Saturn rings 55 galaxies 54 comet nucleus 54 infrared telescope 54 NASA Chandra 54 planet orbits 54 galaxy clusters 54 quasar 54 galaxy formation 54 supernovas 53 Milky Way galaxy 53 neutron star 53 gravitational lensing 53 COROT 53 comet 53 rocky planets 53 dwarf galaxies 53 Milky Way Galaxy 53 interstellar dust 53 WMAP 53 spectroscopic 53 Itokawa 53 planetoid 53 habitable planets 52 X ray Observatory 52 terrestrial planets 52 constellation Orion 52 interferometry 52 spiral galaxy 52 super Earths 52 Sedna 52 galaxy 52 anisotropy 52 NASA ESA Hubble 52 gravitational wave 52 Phaethon 52 ionized gas 52 WM Keck Observatory 52 astronomers 52 NASA Kepler 52 constellation Leo 52 ejecta 52 olivine 52 NASA Cassini spacecraft 52 Titan Saturn 52 theropod