Related by context. Frequent words. (Click for all words.) 58 magnetar 57 supernova explosion 56 Eta Carinae 56 supernova 54 GRBs 53 supernova remnant 52 globular clusters 52 supernovae 52 pulsars 52 globular cluster 51 HD #b [002] 51 X ray emission 51 meteoroid 51 supernova explosions 50 rocky planets 50 dwarf galaxy 50 astronomers 50 Global Surveyor 50 brown dwarf 50 extrasolar planets 49 supernovas 49 elliptical galaxies 49 astronomical observations 49 gamma ray burst 49 brown dwarfs 49 planet orbiting 49 ejecta 49 extrasolar planet 49 redshift 49 meteorite 48 occultation 48 celestial object 48 galaxy cluster 48 distant galaxy 48 Saturn rings 47 super Earths 47 XMM Newton 47 Brownian motion 47 quark gluon plasma 47 cosmic microwave background 47 neutron star 46 spiral galaxies 46 optical telescopes 46 radioactive decay 46 cosmologists 46 substorms 46 quasars 46 meteor 46 gravitational lensing 46 NASA Chandra 46 exoplanet 46 galaxy clusters 46 gamma ray bursts 46 sunspot 46 dwarf galaxies 46 meteorites 45 galaxies 45 supermoon 45 cosmological constant 45 cosmic ray 45 pulsar 45 spiral galaxy 45 quasar 45 Andromeda Galaxy 45 Sedna 45 Astronomers 45 neutron stars 45 comets 45 Cassiopeia 45 high temperature superconductivity 45 comet 44 sunspot activity 44 Geminids 44 cosmological 44 high temperature superconductors 44 volcanism 44 abundances 44 Betelgeuse 44 X ray Observatory 44 oscillation 44 general relativity 44 deuterium 44 nebula 44 exoplanets 44 GeV 44 astrophysicists 44 Orion Nebula 44 Higgs boson 44 multicellular organisms 44 Jupiter moons 44 Large Magellanic Cloud 44 terrestrial planets 44 hominid 44 olivine 43 planets orbiting 43 sunspots 43 quantum theory 43 single celled organisms 43 infrared telescope 43 oxygen isotopes 43 UB# [003]