Related by context. Frequent words. (Click for all words.) 65 magnetar 63 accretion disk 62 dwarf galaxy 61 supernova explosion 60 X ray emission 60 galaxy formation 60 supernova remnant 60 globular cluster 59 Cancri 59 brown dwarf 58 supernova 57 Eta Carinae 57 extrasolar planet 57 HD #b [002] 57 rocky planets 57 planet orbiting 57 elliptical galaxies 57 distant galaxy 57 galaxy cluster 56 brown dwarfs 56 neutron star 56 supernovae 56 globular clusters 56 Gliese #g 56 supernova explosions 56 solar nebula 56 spiral galaxy 56 quark gluon plasma 56 Milky Way Galaxy 56 gravitational lensing 55 X ray Observatory 55 comet nucleus 55 XMM Newton 55 quasar 55 Kuiper belt 55 galaxy clusters 55 gamma ray burst 55 microlensing 55 subatomic particle 55 planet orbits 54 Gamma ray bursts 54 celestial object 54 quasars 54 supernovas 54 Crab Nebula 54 pulsar 54 ejecta 54 supermassive black hole 53 neutron stars 53 GRBs 53 NASA Chandra 53 astronomical objects 53 Andromeda galaxy 53 cosmic microwave background 53 accreting 53 Saturn rings 53 infrared telescope 52 exoplanet 52 moon Charon 52 terrestrial planets 52 spiral galaxies 52 ringed planet 52 COROT 52 comet 52 galaxies 52 astronomers 52 Orion Nebula 52 Jupiter moons 52 dwarf galaxies 52 gravitational wave 52 Andromeda Galaxy 52 super Earths 51 spacetime 51 Milky Way galaxy 51 meteoroid 51 spherules 51 gravitational waves 51 torus 51 Large Magellanic Cloud 51 gamma ray bursts 51 redshift 51 hot Jupiters 51 nebula 51 muon 51 interstellar dust 51 NASA ESA Hubble 51 spectroscopic 51 journal Astronomy 50 cosmologists 50 Higgs Boson 50 constellation Perseus 50 observable universe 50 WIMPs 50 gravitationally 50 ionized gas 50 extrasolar planets 50 constellation Leo 50 interferometry 50 Voyager spacecraft 50 Sedna 50 neutrino