Related by context. Frequent words. (Click for all words.) 59 extrasolar planet 54 Udry 53 innermost planet 52 WASP #b 52 exoplanets 50 exoplanet 50 GRB # 50 HD #b [002] 49 extrasolar planets 49 Earthlike 49 planetoid 48 planet Uranus 48 Gliese #g 48 NASA Kepler 48 planet orbiting 48 COROT 48 brown dwarf 48 radial velocity 48 super Earths 48 SIRTF 48 CoRoT 47 Hawking radiation 47 Kepler spacecraft 47 microlensing 47 HAT P 47 magnetar 47 Mauna Kea Hawaii 47 Eta Carinae 46 Cancri 46 Galaxy Evolution 46 Sedna 46 gamma ray burst 46 OGLE 45 NASA Cassini spacecraft 45 VIRTIS 45 boson 45 distant galaxy 45 Andromeda galaxy 45 Gamma ray bursts 45 GRBs 45 Voyager spacecraft 45 star Gliese 45 Opportunity rover 45 Kuiper belt 45 Southern Observatory ESO 45 habitable planet 45 interplanetary spacecraft 44 XMM Newton 44 Gliese 44 Lulin 44 Galileo spacecraft 44 WIMPs 44 Martian equator 44 magnetars 44 Spitzer Space Telescope 44 galaxy NGC 44 planets circling 44 Lunar Prospector 43 moon Charon 43 protoplanetary disk 43 Higgs particle 43 ESA Mars 43 WFC3 43 BY MARK WILSON 43 Oort Cloud 43 planets orbiting 43 Lunine 43 habitable planets 43 subatomic particle 43 horned dinosaur 43 William Borucki 43 supernova remnant 43 galaxy cluster 43 Hubble observations 43 Global Surveyor 43 Patently Apple 43 Elachi 43 brown dwarfs 43 Siberian permafrost 43 ringed planet 43 pulsar 43 Nicolaus Copernicus 43 cometary 43 Kepler telescope 43 La Silla Chile 43 globular clusters 43 UB# [003] 42 Clyde Tombaugh 42 photometry 42 solar corona 42 dwarf galaxy 42 Fomalhaut 42 HARPS 42 Cassini radar 42 ultraviolet wavelengths 42 PASADENA Calif. NASA 42 GOCE 42 Kuiper Belt objects 42 moonlets 42 astronomical objects 42 gravitational wave