Related by context. Frequent words. (Click for all words.) 56 Eta Carinae 56 planetary nebula 56 planet orbits 55 Voyager spacecraft 55 supernova explosion 53 planetary nebulae 53 supernova remnant 53 supernova remnants 52 magnetar 52 orbits 52 Large Magellanic Cloud 51 Andromeda galaxy 51 brown dwarf 51 globular clusters 51 dwarf galaxy 51 planets orbiting 51 accretion disk 51 spiral galaxies 51 galaxy cluster 51 globular cluster 50 Fomalhaut 50 Itokawa 50 distant galaxy 50 supernova explosions 50 Saturn rings 50 planet orbiting 50 Orion Nebula 50 constellation Leo 50 GRB # 50 nuclei 49 interferometry 49 Cancri 49 celestial object 49 X ray emission 49 HD #b [002] 49 Earth magnetosphere 49 spiral galaxy 49 ecliptic 49 corona 49 Phaethon 49 solar nebula 49 heliosheath 49 nebula 49 interstellar medium 49 atomic nuclei 49 planets circling 49 muon 48 constellation Perseus 48 auroral 48 gravitationally 48 brown dwarfs 48 Crab Nebula 48 Andromeda Galaxy 48 galaxy 48 XMM Newton 48 ejecta 48 ionized gas 48 comet nucleus 48 Pulsars 48 quasar 47 COROT 47 distant galaxies 47 GRBs 47 constellation Orion 47 New Horizons spacecraft 47 z = 47 ringed planet 47 Betelgeuse 47 microlensing 47 Milky Way Galaxy 47 neutron star 47 NASA Cassini spacecraft 47 circular orbit 47 Jupiter moons 47 Kuiper belt 47 Hubble observations 47 Galaxy Evolution 47 landmasses 47 observable universe 47 terrestrial planets 47 GeV 46 Cassini spacecraft 46 EL# [001] 46 comet Wild 46 Gamma ray bursts 46 magnetic flux 46 infrared wavelengths 46 galaxies 46 Jupiter Saturn 46 gamma ray burst 46 magnetization 46 Stardust spacecraft 46 magnetosphere 46 elliptical galaxies 46 filaments 46 accreting 46 interstellar space 46 interstellar dust 46 Haumea 46 Type Ia supernovae 46 supernovas