Related by context. Frequent words. (Click for all words.) 63 globular clusters 63 magnetar 62 brown dwarfs 62 HD #b [002] 61 supernova explosion 61 globular cluster 61 quasars 61 planet orbits 61 supernova explosions 60 solar nebula 60 Milky Way Galaxy 60 rocky planets 60 elliptical galaxies 60 distant galaxy 60 Eta Carinae 60 Gamma ray bursts 60 neutron stars 60 GRBs 59 dwarf galaxy 59 spiral galaxies 59 quark gluon plasma 58 brown dwarf 58 galaxy formation 58 neutron star 58 supernovae 58 Kuiper belt 58 X ray emission 58 redshift 57 Orion Nebula 57 microlensing 57 galaxies 57 galaxy clusters 57 accretion disk 57 dwarf galaxies 57 supernova remnants 57 subatomic particle 57 hot Jupiters 57 gravitational lensing 57 WIMPs 57 planets 57 extrasolar planets 57 observable universe 57 distant galaxies 56 supernova 56 Crab Nebula 56 exoplanets 56 supernova remnant 56 ejecta 56 spiral galaxy 56 Milky Way galaxy 56 terrestrial planets 56 Andromeda Galaxy 56 supermassive black hole 56 cosmic microwave background 56 galaxy 56 astronomical objects 56 visible wavelengths 56 planets orbiting 55 Andromeda galaxy 55 super Earths 55 Fomalhaut 55 Large Magellanic Cloud 55 planet orbiting 55 supernovas 55 astrophysical 55 quasar 54 morphologies 54 extrasolar planet 54 habitable planets 54 interstellar dust 54 Gliese #g 54 galaxy cluster 54 X ray Observatory 54 nebula 54 COROT 53 gamma ray burst 53 muon 53 supermassive black holes 53 Haumea 53 nebulae 53 gamma rays 53 celestial bodies 53 Spitzer Space Telescope 53 spacetime 53 general relativity 53 substorms 53 astrophysicists 53 gravitational waves 53 constellation Leo 53 Cancri 53 infrared wavelengths 53 Betelgeuse 53 Einstein theory 53 astronomers 52 muons 52 pulsars 52 meteoroid 52 neutrinos 52 heliosphere 52 gravitationally 52 Bose Einstein condensate