Related by context. Frequent words. (Click for all words.) 59 ray Space Telescope 56 Planetary Physics 55 Observatoire de Paris 54 Geoffrey Marcy 54 Kepler Mission 54 By DIEDTRA HENDERSON 54 conducts unclassified scientific 54 Science Medline 54 ESA XMM Newton 54 Carnegie Observatories 53 Seth Shostak 53 Exoplanets 52 By PAUL RECER 52 NASA Fermi Gamma 52 Bad Astronomy 52 Sasselov 52 Galaxy Evolution 52 Credit NASA JPL 52 Keck telescope 52 RHESSI 52 Phil Plait 51 Felisa Wolfe Simon 51 distant supernovae 51 Sara Seager 51 gravitational microlensing 51 credit NASA JPL 51 Southern Observatory ESO 51 Astrophysics Laboratory 50 Lick Observatory 50 Filippenko 50 Jenniskens 50 GALEX 50 Adaptive Optics 50 Heliospheric Observatory SOHO 50 Terrestrial Magnetism 50 Neil deGrasse Tyson 50 interplanetary spacecraft 50 ETH Zürich 50 Larry Smarr 50 National Astronomical Observatory 50 Geoff Marcy 50 Astrophysicist 50 Exoplanet 50 extrasolar planet 50 Credits ESA 50 XMM Newton 50 miscellaneous ramblings 50 Scott Shalaway 49 NASA Kepler 49 SETI Search 49 Information Technology Calit2 49 Nicolaus Copernicus 49 Herschel Space 49 Kepler #b 49 nicknamed Xena 49 geochemists 49 Cancri 49 Gliese #g 49 Extraterrestrial Physics 49 COROT 49 Omega Centauri 49 extrasolar 49 Astrophysics CfA 49 GRB # 49 Michael Zolensky 49 Space Studies GISS 49 WM Keck 49 La Silla Chile 48 WM Keck Observatory 48 Keck Observatory 48 CoRoT 48 Microbiology Immunology 48 By Tudor Vieru 48 Compton Gamma Ray 48 Titan Saturn 48 Jupiter moon Io 48 Ecole Polytechnique Fédérale de 48 CfA 48 Roger Tsien 48 Ecology Evolution 48 journal Astronomy 48 Lyman alpha 48 AKARI 48 UCSD Jacobs 48 earthshine 48 Eric Rignot 48 Cassini Huygens 48 CrossRef Web 48 Pan STARRS 47 Steward Observatory 47 journal Icarus 47 WASP #b 47 Deaths haunt 47 science journal Nature 47 theoretical physicist 47 scientific journal Proceedings 47 Santa Barbara UCSB 47 NASA Astrobiology Institute 47 Swift Tuttle 47 Palomar Observatory 47 Daniel Sperling