Related by context. Frequent words. (Click for all words.) 53 WASP #b 53 planet Uranus 51 Venusian 51 planet orbits 49 planets 49 Jupiter moons 49 planetoid 48 HD #b [002] 48 Earthlike 48 innermost planet 47 Haumea 47 Sedna 47 chemical composition 47 solar nebula 47 perihelion 47 Iapetus 47 extrasolar planet 47 circular orbits 47 Saturn rings 46 Gliese #g 46 Oort Cloud 46 habitable planet 46 orbits 46 Uranus 46 protoplanetary disk 46 Nibiru 46 Jupiter Saturn Uranus 46 weirder 45 super Earths 45 solstices 45 Saturn moons 45 radial velocity 45 observable universe 45 moon Charon 45 outer planets 45 planet orbiting 45 Kuiper belt 44 gravitational tug 44 celestial bodies 44 baryons 44 lithosphere 44 SIRTF 44 fainter 44 Kuiper Belt objects 44 COROT 43 Andromeda galaxy 43 heliosphere 43 extrasolar planets 43 Lunar Prospector 43 cosmos 43 hot Jupiters 43 Eta Carinae 43 orbiting 43 gravitationally 43 Jupiter Saturn 43 NASA Cassini 43 equinoxes 43 Saturn moon 43 moons 43 Andromeda 42 outer crust 42 sunspot cycle 42 Hubble observations 42 gravitational attraction 42 spacetime 42 Ophiuchus 42 habitable zones 42 redshifts 42 comet 42 moon Europa 42 geoid 42 cosmic 42 magnetar 42 Galileo spacecraft 42 atomic nuclei 41 elliptical orbit 41 galaxy formation 41 interplanetary spacecraft 41 sunspot activity 41 albedo 41 Cosmologists 41 star Gliese 41 Pluto 41 planets orbiting 41 luminosity 41 spatial dimensions 41 pulsar 41 brown dwarf 41 -# degrees Fahrenheit [002] 41 quark 41 Ganymede 41 Andromeda Galaxy 41 Phobos 41 isotopic composition 41 equinox 41 galaxy 41 magnetars 41 Venus 41 comet nucleus 41 Earth 41 elliptical galaxies