Related by context. Frequent words. (Click for all words.) 67 supernova remnant 65 planetary nebula 65 GRB # 64 Crab Nebula 63 magnetar 63 Eta Carinae 62 redshift 61 dwarf galaxy 61 globular cluster 61 supernova explosion 61 Fomalhaut 60 planet orbiting 60 galaxy cluster 60 Large Magellanic Cloud 59 supernova 59 X ray emission 59 redshifts 59 planetary nebulae 59 supernova remnants 59 brown dwarf 58 Andromeda galaxy 58 photometry 58 globular clusters 57 HD #b [002] 57 gamma ray burst 57 distant galaxy 57 Betelgeuse 57 spiral galaxy 57 z = 57 GRBs 56 XMM Newton 56 visible wavelengths 56 Cancri 56 star Gliese 56 Orion Nebula 56 solar corona 56 Voyager spacecraft 56 supernovae 55 elliptical galaxies 55 Cassiopeia 55 auroral 55 planet orbits 55 quasar 55 nebulae 55 Type Ia supernovae 54 active galactic nuclei 54 quasars 54 constellation Orion 54 Andromeda Galaxy 54 Galaxy Evolution 54 accretion disk 54 constellation Perseus 54 infrared wavelengths 54 supernovas 54 anisotropy 54 NICMOS 54 interferometry 54 radial velocity 54 J# [002] 54 photometer 53 EL# [001] 53 solar nebula 53 brown dwarfs 53 constellation Leo 53 nebula 53 GeV 53 galaxy formation 53 extrasolar planet 53 observable universe 53 unaided eye 53 colliding galaxies 53 ejecta 53 WFC3 53 supernova explosions 52 Fig. 1A 52 Gamma ray bursts 52 gamma ray bursts 52 celestial object 52 Hawking radiation 52 magnetic reconnection 52 astronomical objects 52 La Silla Chile 52 haloes 52 ionized gas 51 Kuiper belt 51 Halley comet 51 comet tail 51 GPa 51 supergiant 51 planets orbiting 51 STIS 51 Mimas 51 kelvin 51 olivine 51 Pulsars 51 COROT 51 Phaethon 51 OGLE 51 luminosity 51 Hubble observations 50 gravitational wave