Related by context. Frequent words. (Click for all words.) 52 Roger Highfield 52 Astrophysicist 52 space.com 50 Exoplanet 50 journal Icarus 49 Astronomy 48 By Tudor Vieru 48 Seth Shostak 48 By Mark Geenty 48 Sara Seager 48 astronomy 48 Phil Plait 47 Bad Astronomy 47 By DIEDTRA HENDERSON 47 Astronomer 47 Surrey Satellite 47 Transit Planetarium 47 Jodrell Bank Observatory 47 Jack Horkheimer 46 Bonnie Malkin 46 By Scott Rochfort 46 Astrobiology 46 Square Kilometre Array 46 interplanetary spacecraft 46 Southern Observatory ESO 46 By MARTIN KAY 46 Astrophysics 46 Space.com 46 Siding Spring 45 astronomer 45 Ed Weiler 45 By Daniel Brettig 45 By David Beniuk 45 Picture Colleen Petch 45 Plait 45 Pasachoff 44 Amateur astronomers 44 Weather Prediction 44 Comet McNaught 44 Monthly Notices 44 COROT 44 journal Astronomy 44 Jeraldine Saunders 44 solar corona 44 supermoon 44 stargazer 44 www.nasa.gov 44 astrophysicists 44 By PAUL RECER 43 By James Dampney 43 Terrestrial Planet Finder 43 NewScientist 43 Paul Dirac 43 Prof Hawking 43 Xavier La Canna 43 Planetary Science Institute 43 By Julian Drape 43 science journal Nature 43 JPL manages 43 astro 43 SkyNews 43 Skywatch 43 Lulin 43 By MATT RICHENS 43 Steward Observatory 43 By Todd Balym 43 LOFAR 43 extrasolar 43 Astrophysicists 42 Earth Observation 42 Flyby 42 By JANINE RANKIN 42 Nasa 42 Nasa Jet Propulsion 42 Telescope 42 David Biello 42 Michio Kaku 42 Galaxy Evolution 42 Jodrell Bank 42 By Sam Lienert 42 LiveScience.com 42 By VIRGINIA WHEELER 42 CoRoT 42 By Nicki Bourlioufas 42 Tamara McLean 42 NASA Kepler 42 telescope 42 meteor shower 42 Alan Porritt 42 Nibiru 42 SPACE.com 42 NASAs 42 Ben Goldacre 42 amateur astronomers 41 observatory 41 Planetary Physics 41 La Silla Chile 41 meteor showers 41 Observatories 41 amateur astronomer 41 Oscillations