Related by context. Frequent words. (Click for all words.) 60 WASP #b 57 Hawking radiation 57 CfA 56 planetary nebulae 56 Gamma ray bursts 56 elliptical galaxies 56 planet orbiting 56 microlensing 55 extrasolar planet 55 Astrophysicists 54 Higgs particle 54 GRBs 54 globular clusters 54 rocky planets 54 habitable planets 54 van Dokkum 53 radial velocity 53 Eta Carinae 53 supersymmetry 53 galaxy formation 53 extrasolar planets 53 astrophysicists 53 gravitational lensing 53 distant galaxies 53 astrophysical 53 aurorae 53 redshifts 53 magnetar 53 astronomer 53 Credit NASA JPL 53 subatomic particle 53 distant galaxy 52 hot Jupiters 52 Type Ia supernovae 52 magnetars 52 Astrophysicist 52 Galaxy Evolution 52 ESO Very Large Telescope 52 planets circling 52 quasars 52 brown dwarfs 52 Oort Cloud 52 planetary scientist 52 nebulae 51 Niels Bohr Institute 51 WM Keck Observatory 51 Monthly Notices 51 quasar 51 exoplanet 51 celestial object 51 globular cluster 51 brown dwarf 51 astronomical observations 51 Gliese #g 51 HD #b [002] 51 planets orbiting 51 gamma ray bursts 51 supernovae 51 dwarf galaxies 51 supernova explosions 51 super Earths 50 active galactic nuclei 50 XMM Newton 50 WIMPs 50 Keck Observatory 50 journal Astronomy 50 supernova explosion 50 astrophysicist 50 COROT 50 galaxies 50 Sedna 50 Hubble observations 50 planet orbits 50 neutron stars 50 Jupiter moons 50 Astrophysical Journal 50 astronomical objects 50 Saturn rings 50 orbiting planets 50 Andromeda galaxy 50 exoplanets 50 X ray emission 50 gamma ray burst 49 astronomers 49 pulsar 49 supernovas 49 planetary nebula 49 Astrophysical Journal Letters 49 quantum gravity 49 Gemini Observatory 49 colliding galaxies 49 pulsars 49 supernova 49 dwarf galaxy 49 solar corona 49 Spitzer Space Telescope 49 astrobiologist 49 redshift 49 Mimas 49 spectroscopic 49 Cancri