Related by context. Frequent words. (Click for all words.) 43 astrophysicists 42 Kepler 42 planets 41 astronomers 41 astronomer 40 extrasolar planets 39 Golombek 39 exoplanets 39 exoplanet 39 planets orbiting 39 Squyres 38 rocky planets 38 Hawking 38 brown dwarfs 37 Charon 37 Shapley 37 Lowell Observatory 37 globular clusters 37 physicists 37 theoretical physicist 37 asteroids 36 Planck 36 UB# [003] 36 Peter Diamandis 36 asteroid 35 astrophysicist 35 Shostak 35 Kuiper Belt 35 Pluto 35 Astrophysics 35 Higgs 34 Cassini 34 brown dwarf 34 cosmologists 34 cometary 34 NASA Jet Propulsion Laboratory 34 physicist 34 supernovae 34 NASA Goddard 34 astrophysical 33 planetary 33 neutrino 33 Milky Way galaxy 33 celestial objects 33 dwarf planet 33 comets 33 comet Wild 33 astrophysics 33 Higgs boson 33 Solar System 33 cosmologist 33 Milky Way 33 physics 32 Guzik 32 Astronomers 32 Sedna 32 orbiting 32 Tarter 32 Diamandis 32 WMAP 32 LRO 32 THEMIS 32 supernova 32 Milky Way Galaxy 32 planet orbiting 31 quasars 31 GLAST 31 Einstein theory 31 amateur astronomer 31 distant galaxy 31 particle physics 31 redshift 31 quantum computing 31 Spitzer Space Telescope 31 HiRISE 31 astronomy 31 Grandinetti 31 Gliese 30 pulsars 30 galaxies 30 Tsien 30 Hubble telescope 30 XMM Newton 30 Smola 30 neutrinos 30 supernovas 30 distant galaxies 30 Feynman 30 astrobiology 30 JWST 30 habitable zone 30 amateur astronomers 30 LCROSS 30 interstellar dust 30 Hubble 30 mathematicians 29 Rutan 29 orbits 29 Kurzweil 29 Prete 29 Saturn moon