Related by context. Frequent words. (Click for all words.) 71 extrasolar planet 69 Gliese #g 67 Earthlike 66 planet Uranus 66 WASP #b 64 exoplanets 64 super Earths 64 COROT 64 HD #b [002] 64 innermost planet 64 Cancri 62 extrasolar planets 62 RQ# 62 Gamma ray bursts 62 exoplanet 61 radial velocity 61 microlensing 61 interplanetary spacecraft 61 Higgs particle 61 brown dwarf 61 GRB # 61 NASA Kepler 60 magnetar 60 distant galaxy 60 habitable planets 60 planet orbiting 60 Titan Saturn 60 star Gliese 60 planetoid 59 rocky planets 59 brown dwarfs 59 magnetars 59 Galaxy Evolution 59 Kuiper belt 59 moonlets 59 Kuiper Belt objects 59 gamma ray burst 59 La Silla Chile 59 Gliese 58 ultraviolet wavelengths 58 planetary nebulae 58 habitable planet 58 Hawking radiation 58 unaided eye 58 spacecraft orbiting 58 WIMPs 58 perihelion 58 aurorae 58 XMM Newton 58 baryons 58 SIRTF 58 Mauna Kea Hawaii 58 Sedna 58 NASA Cassini spacecraft 58 Andromeda Galaxy 57 volcanically active 57 Galileo spacecraft 57 Mini SAR 57 moon Charon 57 planets orbiting 57 Opportunity rover 57 solar corona 57 OGLE 57 UB# [003] 57 Lake Vostok 57 habitable zones 57 infrared telescope 57 Jupiter moons 57 Oort Cloud 57 planet orbits 56 Voyager spacecraft 56 God Particle 56 celestial object 56 NASA Stardust spacecraft 56 Saturn moon 56 Orion Nebula 56 Saturn moon Enceladus 56 Cepheids 56 Meridiani 56 Lunar Prospector 56 NASA Cassini 56 Lutetia 56 hot Jupiters 56 galaxy cluster 56 Spitzer Space Telescope 56 visible wavelengths 56 planets circling 56 orbiting Saturn 56 Eta Carinae 56 Crab Nebula 56 geologically active 56 photometer 55 Cosmologists 55 Fomalhaut 55 geoid 55 elemental composition 55 Keck telescope 55 moon Titan 55 Large Magellanic Cloud 55 subatomic particle 55 planets