Related by context. Frequent words. (Click for all words.) 56 Gliese 51 La Silla Chile 50 super Earths 50 planets circling 49 Gamma ray bursts 49 planet orbiting 49 Southern Observatory ESO 48 HD #b [002] 48 COROT 48 habitable zones 48 brown dwarfs 47 Large Magellanic Cloud 47 GRB # 47 rocky planets 47 astronomers 47 exoplanets 47 microlensing 47 GRBs 47 dwarf galaxy 47 hot Jupiters 46 planets orbiting 46 planetoid 46 star Gliese 46 R#a# 46 globular clusters 46 active galactic nuclei 46 extrasolar planet 46 Cancri 45 dwarf galaxies 45 Hawking radiation 45 Higgs particle 45 UB# [003] 45 Gliese #g 45 planetary nebulae 45 Andromeda galaxy 45 discoverers 45 shorter wavelengths 44 extrasolar planets 44 Mauna Kea Hawaii 44 Kuiper belt 44 elliptical galaxies 44 solar nebula 44 gamma ray burst 44 magnetar 44 redshift 44 aurorae 44 Oort Cloud 43 Astronomers 43 innermost planet 43 Nicolaus Copernicus 43 terrestrial planets 43 gravitational wave 43 researchers 43 globular cluster 43 supercontinent 43 Andromeda Galaxy 43 supernova explosion 43 exoplanet 43 astrophysicists 43 habitable planets 43 distant galaxy 43 Higgs Boson 43 Cassini Huygens 43 galaxy cluster 43 galaxies 42 Monthly Notices 42 Galaxy Evolution 42 galaxy clusters 42 supernova remnants 42 outer planets 42 XMM Newton 42 scientists 42 pulsars 42 Newswise Researchers 42 Type Ia supernovae 42 radial velocity 42 habitable planet 42 Gamma rays 42 neutron stars 42 Milky Way galaxy 42 quark gluon plasma 42 spatial dimensions 42 cosmic microwave background 41 ringed planet 41 Saturn rings 41 Martian equator 41 redshifts 41 volcanically active 41 quasar 41 Saturn moon 41 Titan Saturn 41 OGLE 41 supernova remnant 41 accretion disk 41 God Particle 41 brown dwarf 41 Astrophysical Journal 41 WM Keck Observatory 41 hydrothermal vent 41 distant galaxies 41 pulsar