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(Click for frequent words.) 51 Carilli 48 Bottke 48 Binzel 47 A'Hearn 47 Sara Seager 46 Konacki 46 Sasselov 45 Winglee 45 Storrie Lombardi 44 Earthlike planets 44 Kepler discoveries 44 Gehrels 44 Franck Marchis 43 astrophysicists 43 Dauphas 43 Von Frese 43 Bahcall 43 Udry 43 Mamajek 43 Kuiper Belt Objects 43 Ed Weiler 43 Dupke 43 Kuiper belt objects 43 William Borucki 42 Gaensler 42 Geoff Marcy 42 Wolszczan 42 Smithsonian astronomer 42 planetary astronomy 42 Andrea Ghez 42 Machholz 42 Kepler 42 Stassun 42 planets 41 Nikku Madhusudhan 41 Scholin 41 Maria Zuber 41 Natalie Batalha 41 astronomers 41 director Charles Elachi 41 Mandushev 41 NASA Kepler 41 Gerhard Schwehm 41 Gehrz 41 super Earths 41 Lunine 41 astronomer 41 Nasa Jet Propulsion 41 Tegmark 41 Charles Beichman 41 Avishay Gal Yam 40 Marscher 40 asteroids orbiting 40 Stéphane Udry 40 extrasolar planets 40 Uranus Neptune 40 Kounaves 40 Epsilon Eridani 40 Pluto Eris 40 extrasolar 40 Wolfgang Ketterle 39 moons circling 39 Kepler Mission 39 Chodas 39 Golombek 39 Krimigis 39 exoplanets 39 Tombaugh 39 supersymmetry 39 Crelin 39 Seth Shostak 39 potentially habitable 39 Nousek 39 Halzen 39 exoplanet 39 habitable planets 39 Earth asteroids 39 Lauterbur 39 planets orbiting 39 astrometric 39 Pieter van Dokkum 39 Spergel 39 Zarnecki 39 Reinhard Genzel 39 SIM PlanetQuest 39 Squyres 39 Astrophysical Institute 38 Rainer Klement 38 Thiemens 38 elusive Higgs boson 38 Caltech astronomer 38 rocky planets 38 Jenniskens 38 Kuiper Belt Object 38 sunlike star 38 sextillion stars 38 planets orbiting stars 38 potentially habitable planets 38 Demicco 38 Einstein theories 38 Tarduno 38 Skupien 38 Mojzsis 38 demote Pluto 38 extragalactic 38 Hawking 38 trans Neptunian objects 38 brown dwarfs 38 Charles Elachi 38 neutron spectrometer 38 Pawelczyk 38 NASA Kepler spacecraft 38 Kepler #b 37 THEMIS satellites 37 Charon 37 Higgs boson particle 37 Diviner instrument 37 planets orbiting sun 37 icy moons 37 Upsilon Andromedae 37 Shapley 37 moons orbiting 37 Ventresco 37 Kanyuck 37 Zoni 37 Daybell 37 Corot 7b 37 Kostura 37 Verbiscer 37 Lowell Observatory 37 David Southwood ESA 37 Maciej Konacki 37 Lattis 37 globular clusters 37 Mario Livio 37 Fraknoi 37 transiting planets 37 orbited Jupiter 37 ultraviolet spectrometer 37 Astrophysics Cambridge Mass. 37 physicists 37 Theodor Hänsch 37 Higgs bosons 37 astrobiologists 37 Blastos 37 Okrasinski 37 exo planets 37 Fomalhaut b 37 Spudis 37 theoretical physicist 37 Collider Detector 37 Schawinski 37 Filippenko 37 asteroids 37 Earths orbiting 37 Kuiper Belt object 37 Woska 37 gravitational lenses 37 plutoids 37 Kepler 9c 37 Boethin 37 Kuiper Belt objects 37 astronomer Seth Shostak 37 Ray Jayawardhana 37 Grillmair 37 Vakoch 36 Cassini Huygens 36 SNfactory 36 KBOs 36 Saturn Cassini 36 Strohmayer 36 Pluto Charon 36 exoplanets planets 36 Wide Angle Search 36 DZero 36 inhabitable planets 36 water hypothesizes Stephane 36 Kailash Sahu 36 gravitational microlensing 36 Planck 36 supersymmetric particles 36 PASADENA Calif. Astronomers 36 Gerard Kuiper 36 extrasolar planetary systems 36 Werthimer 36 Gliese #g 36 Bekey 36 UB# [003] 36 Huchra 36 sterile neutrino 36 CfA 36 Fillio 36 Peter Diamandis 36 millisecond pulsars 36 Mlodinow 36 WIMPs 36 extrasolar planets orbiting 36 terrestrial planets 36 Dessler 36 astronomer Clyde Tombaugh 36 Cygnus Lyra region 36 Neukum 36 asteroid 36 Conselice 36 Legnitto 36 planets orbiting distant 36 Hipparcos 36 Trumpler 36 planetoid 36 exo planet 36 Extraterrestrial Intelligence Institute 36 Chandra Wickramasinghe 36 Molczan 36 smallest exoplanet 36 Calaprice 36 NASA Fermi Gamma 36 Cassini ultraviolet 36 Neagley 36 Dava Newman 36 Christopher Chyba 36 habitable worlds 36 planets astronomers 36 Perkowitz 36 Saturn moons 36 Jerrie Cobb 35 Quaoar 35 Peruzzotti 35 Pluto demotion 35 Paul Chodas 35 Earthlike planet 35 SIRTF 35 extrasolar planet 35 radial velocity technique 35 ESA Herschel 35 Cancri e 35 Peter Jenniskens 35 Ketterle 35 Gliese #c 35 astrophysicist 35 Pillinger 35 Visalli 35 universe Kaku 35 Del Guercio 35 Bojowald 35 habitable zones 35 ESA Planck 35 Scaramuzzo 35 Raymond Jeanloz 35 relativity Einstein 35 NASA Cassini 35 Dalcanton 35 Peter H. Diamandis 35 SPIRE instrument 35 Giovanni Cassini 35 MIT planetary scientist 35 Shostak 35 Stephane Udry 35 WASP #b 35 Deep Impact eXtended Investigation 35 lightest exoplanet 35 particle physicists 35 Lawrence Krauss 35 spectroscopically 35 Anthony Remijan 35 MiniBooNE 35 Frank Wilczek 35 electron neutrinos 35 MIT Haystack Observatory 35 Satyendra Nath Bose 35 DeNardo 35 Carnegie Observatories 35 Mackwell 35 cosmological theories 35 Taddie 35 physicist Max Planck 35 Kuiper Belt 35 astrobiologist 35 Clyde Tombaugh discovered 35 Pluto 35 Drake Equation 35 Astrophysics 35 James Fanson 35 Marchis 35 Havasy 35 Allan Sandage 35 EPOXI spacecraft 35 Joel Primack 35 Pan STARRS 35 moon Charon 35 redshifts 35 SDSS II 35 millisecond pulsar 35 R#a# 35 Leoncini 35 Raymond Kurzweil 35 Jonathan Lunine 35 planetoids 35 Higgs 35 Saturn outermost moon 35 exoplanet hunter 35 Eric Becklin 34 Hänsch 34 gravitationally bound 34 George Djorgovski 34 Astrophysical 34 DISR 34 Phil Plait 34 Cassini 34 Evolution Explorer 34 Owen Gingerich 34 Hangst 34 LaSota 34 Keck telescope 34 brown dwarf 34 Gliese #d 34 Parcak 34 Astrophysicists 34 Mayros 34 Larry Soderblom 34 cosmologists 34 Don Gurnett 34 Hubble observations 34 Markram 34 Alex Filippenko 34 Segert 34 comet chaser 34 cometary 34 AB Aurigae 34 Mucciarone 34 NASA Jet Propulsion Laboratory 34 astrobiological 34 Galilean moons 34 physicist 34 largest moon Charon 34 Great Observatories 34 Sallie Baliunas 34 Stardust NExT 34 distant supernovae 34 Bohdan Paczynski 34 LORRI 34 Staniewicz 34 Fritz Zwicky 34 reionization 34 Dr Ehrsson 34 comets orbiting 34 Stickgold 34 supernovae 34 astronomical objects 34 Ernst Stuhlinger 34 NASA Far Ultraviolet 34 Terrestrial Planet Finder TPF 34 Makarski 34 F. Readdy NASA 34 Stampe 34 Krumeich 34 Edwin Hubble 34 BP Psc 34 habitable planet 34 Timmann 34 Rainer Blatt 34 X ray observatory 34 NASA Goddard 34 Cepheids 34 sunlike stars 34 CoRoT 9b 34 astrophysical phenomena 34 Matloff 34 Laser Interferometer Gravitational Wave 34 Kuiper belt object 34 Roukes 34 OGLE TR #b 34 DeVuyst 34 Upsilon Andromedae b 34 astrophysical 34 Von Neumann 34 Huygens mission 34 theoretical physicists 34 Marianetti 34 JDEM 34 Professor Hawking 34 boson 34 Preskill 34 Gutoski 33 exoplanetary 33 particle physicist 33 Sromovsky 33 professor Marin Soljacic 33 DiAntonio 33 planetary 33 rocky extrasolar planet 33 Ferenc Krausz 33 planemos 33 Burbine 33 Leon Lederman 33 Hubble Ultra 33 neutrino 33 M. Kerwood 33 Saturn Enceladus 33 Prof Hawking 33 Pieszala 33 Milky Way galaxy 33 Slifko 33 Kepler spacecraft 33 celestial objects 33 Chowanec 33 Adam Riess 33 Stephen Hawkings 33 Royyuru 33 Basiago 33 Ralph McNutt 33 Passariello 33 Zelante 33 protoplanetary disks 33 Sampogna 33 Jupiter moons 33 Palaia 33 Earthlike 33 Higgs particle 33 WMAP satellite 33 Hertzfeld 33 Reijo Pera 33 dwarf planet 33 Europa Orbiter 33 exoplanets orbiting 33 Hodor 33 NASA Kepler telescope 33 Neils Bohr 33 Marvin Minsky 33 Manzone 33 Chelgren 33 Voedisch 33 Kaszak 33 Hubble astronomer 33 Extrasolar 33 comets 33 telescopic observations 33 SN #gy 33 Eta Carinae 33 interstellar dust particles 33 comet Wild 33 panspermia 33 Mark Changizi 33 axions 33 hot Jupiters 33 Narlikar 33 Chirichiello 33 Herschbach 33 Ehud Shapiro 33 Ottiano 33 planets circling 33 Paoletto 33 Keck Observatory 33 astrophysics 33 asteroid Vesta 33 Rokhsar 33 Soljacic 33 Giacomino 33 Nasa spacecraft 33 Lunar Prospector 33 Higgs boson 33 Infrared Array Camera 33 Avi Loeb 33 theistic evolutionist 33 Professor Chandra Wickramasinghe 33 Solar System 33 Dornbrook 33 cosmologist 33 planets Uranus 33 renowned astrophysicist 33 dirty snowballs 33 Donnalee Lozeau 33 hypervelocity stars 33 Leidman 33 Hyakutake 33 CoRoT 7b 33 A. Magovern 33 Milky Way 33 highly elliptical orbits 33 spectroscopic observations 33 Higgs Boson particle 33 NEAs 33 S. Lindzen 33 Composite Infrared Spectrometer 33 Ossing 33 Heliophysics 33 Chu Nobel laureate 33 Percival Lowell 33 Cosmic Evolution 33 Loukota 33 MicroFUN 33 Fermi telescope 33 physics 33 UDFy # 33 Hakan Svedhem 33 Dikpati 33 planet HD #b 33 Merkler 33 Grabarek 33 protoplanet 33 Fallucca 33 Seracini 33 Drapp 33 COROT 32 binary asteroid 32 MINOS 32 microquasar 32 sized planets orbiting 32 Krishtalka 32 L. Garwin 32 Explorer GALEX 32 Galilean satellites 32 Kroto 32 Astrophysicist 32 Enceladus flybys 32 Gomeau 32 Jennifer Heldmann 32 moon Ganymede 32 Krisak 32 planet Gliese #g 32 Easly 32 Richard Feynman 32 Ezzes 32 Dechene 32 Allen Hynek 32 gravitational wave 32 gaseous planet 32 type Ia supernovae 32 Nasa Kepler 32 Guzik 32 planetary missions 32 Jill Tarter 32 EPOXI mission 32 intrinsic brightness 32 Ondish 32 Astronomers 32 DeWaele 32 Gamma ray burst 32 Sedna 32 Galinas 32 NASA Cosmic Background 32 Wilkinson Microwave Anisotropy Probe 32 AGNs 32 McLurkin 32 Churyumov Gerasimenko 32 Bazela 32 Seigars 32 Cerciello 32 Fernbaugh 32 alien civilizations 32 Anisotropy Probe WMAP 32 Komossa 32 Oslick 32 planetary Transits 32 orbiting 32 Kavandi 32 Tarter 32 Dava Sobel 32 Hubble Near Infrared 32 Zeppieri 32 amateur skywatchers 32 Wernher Von Braun 32 neutralino 32 Diamandis 32 imaging spectrometer 32 Biersdorfer 32 Leslie Pelecky 32 Noreen Kokoruda 32 Frank Bertoldi 32 Vikhlinin 32 Kip Thorne 32 Mamoru Mohri 32 Peter Grünberg 32 Professor Geim 32 Kurkoski 32 X ray binary 32 Jean Luc Margot 32 Schellnhuber 32 MG J# +# 32 detect gamma rays 32 Robotic Exploration 32 NASA Wilkinson Microwave 32 Leo Esaki 32 WMAP 32 gamma ray spectrometer 32 CoRoT #b 32 VIRTIS 32 LRO 32 Vernor Vinge 32 Reneke 32 Karpow 32 Lewis Dartnell 32 Spacewatch 32 faint galaxies 32 Friis Christensen 32 Epoxi 32 Kathleen Kozinski 32 Baland 32 Atmospheric Scientist 32 THEMIS 32 Einstein relativity theory 32 Paul Dirac 32 supernova 32 Wurzburger 32 Pluto dwarf 32 VanDyck 32 Milky Way Galaxy 32 theoretical physicist Stephen Hawking 32 Chris Chyba Princeton 32 Meg Urry 32 Praley 32 Fusciardi 32 Steward Observatory 32 Extrasolar Planet Search 32 OSIRIS REx 32 planet orbiting 32 Ben Bova 32 Giannattasio 31 quantum physicists 31 Particle physics 31 Professor Pillinger 31 microlensing 31 Neptune Uranus 31 Story Musgrave 31 quasars 31 Max Tegmark 31 subatomic particle 31 Meteoritics 31 orbiting Hubble Space Telescope 31 theoretical astrophysicist 31 Cairy 31 flyby spacecraft 31 asteroid Steins 31 Professor Richard Lindzen 31 Bryan Gaensler 31 Mullard Space Science 31 Crocetti 31 SSRL 31 Exoplanets 31 Haimoff 31 orbiting observatories 31 Space Telescopes 31 roboticist 31 Greg Delory 31 GLAST 31 neutrino oscillation 31 moon Mab 31 EPOCh 31 Galaxy Evolution 31 SUSY 31 Prof. Hawking 31 Einstein theory 31 Beta Pictoris b 31 Voyager spacecraft 31 lobate scarps 31 renowned theoretical physicist 31 distant quasars 31 Troast 31 renowned cosmologist 31 relativity theory 31 Samuel Oschin Telescope 31 Kevin Padian 31 Exoplanet 31 Christophe Lovis 31 magnetar 31 amateur astronomer 31 Cosmic Microwave Background 31 Saidel 31 SuperWASP 31 Palmesano 31 Julia Slingo 31 Bon Tempo 31 elliptical galaxies 31 Erwin Schrödinger 31 Rattell 31 Orbiter LRO 31 Martian meteorites 31 NASA MESSENGER 31 distant galaxy 31 Braccio 31 astrometry 31 ESA XMM Newton 31 particle physics 31 Trebisacci 31 Angarone 31 BepiColombo 31 Mauna Kea Hawaii 31 Mizikar 31 Varricchio 31 occultations 31 ESA Rosetta 31 OGLE TR 31 Latko 31 Trifero 31 EGRET 31 Krutzfeldt 31 HUDF 31 Jezierny 31 Ciliberti 31 moons Phobos 31 radial velocity 31 X ray binaries 31 redshift 31 Boisselier 31 Saul Perlmutter 31 optical interferometry 31 Ellen Grachek 31 Fiondella 31 Iachetta 31 Triangulum Galaxy 31 Carl Friedrich Gauss 31 Blechner 31 elliptical orbits 31 Licastro 31 ultraviolet spectrograph 31 Alexander Goncharov 31 Fabino 31 axion 31 asteroid Eros 31 Anisotropy Probe 31 globular cluster 31 Greci 31 Terrestrial Planet Finder 31 extraterrestrial civilizations 31 Macksoud 31 X ray telescopes 31 exoplanet orbiting 31 HD#b 31 Paul Mellars 31 Roccucci 31 quantum computing 31 Andromeda galaxy 31 Spitzer Space Telescope 31 Mini TES 31 Przywara 31 Dassing 31 Martinez Levasseur 31 Raitano 31 GJ #b [001] 31 Jupiter Ganymede 31 HiRISE 31 MN4 31 COBE 31 astronomy 31 Grandinetti 31 Pretor Pinney 31 LCLS 31 gamma ray observatory 31 Nasser Peyghambarian 31 Konigsmark 31 UKIRT 31 Rathnasree 31 Langfelder 31 Kucharczyk 31 Killory 31 Gliese 31 Sondel 30 astronomer Johannes Kepler 30 Bernardoni 30 Climate Experiment GRACE 30 cosmological distances 30 Millevoi 30 McCammack 30 GALEX 30 Zubrin 30 Supersymmetry 30 Observatoire de Paris 30 Fermi LAT 30 Smedile 30 laser altimeter 30 Verderame 30 pulsars 30 Noblick 30 outermost planet 30 Villare 30 Edmund Halley 30 RXTE 30 Nytes 30 galactic mergers 30 transiting planet 30 UFO enthusiasts 30 Antonaccio 30 celestial observations 30 MAVEN 30 Kakalios 30 Greto 30 Pinti 30 Microlensing 30 HD #b [002] 30 Sakrison 30 galaxies 30 Tsien 30 Ventres 30 Gravitational Physics 30 ROSAT 30 Bad Astronomy 30 Hromisin 30 Laibson 30 TrES 4 30 Neil deGrasse Tyson 30 Calvarese 30 Planck spacecraft 30 Diviner 30 Hubble telescope 30 Martian meteorite 30 Planck satellite 30 Yuscavage 30 XMM Newton 30 Andromeda Galaxy 30 manned lunar landing 30 Gravitational lensing 30 Carl Bergmanson 30 Fermi Gamma ray 30 Spaceguard Survey 30 Voorwerp 30 exobiology 30 Smola 30 Schattner 30 Biagetti 30 SN #A 30 detect gravitational waves 30 Edmond Halley 30 Trifiro 30 Zur Hausen 30 GRB #B 30 neutrinos 30 Koplinka Loehr 30 John Preskill 30 supernovas 30 WFC3 30 NASAs 30 DiNino 30 Mutel 30 Alfvén waves 30 distant galaxies 30 GJ #b [002] 30 DiLalla 30 Solar TErrestrial RElations Observatory 30 fainter objects 30 GQ Lupi 30 Feynman 30 Anthony D' Acchioli 30 infrared astronomy 30 Thirty Meter Telescope 30 Schlaker 30 Balonis 30 HARPS 30 Cassini flyby 30 extrasolar planetary 30 Solomito 30 Gravitational waves 30 Interior Laboratory GRAIL 30 Subrahmanyan Chandrasekhar 30 # Apophis 30 astrobiology 30 JWST 30 Amit Goswami 30 Halley comet 30 Tomassetti 30 Wilkinson Microwave Probe 30 Vizzo 30 Comet #P/Churyumov-Gerasimenko 30 gamma ray flares 30 Beedenbender 30 GRAIL 30 Jayant Narlikar 30 Flyby spacecraft 30 habitable zone 30 blazars 30 Stahlmann 30 RRATs 30 microlensing events 30 Einstein equations 30 Lofink 30 Swift Tuttle 30 Tycho Brahe 30 spaceborne 30 BLG #Lb 30 #gy 30 D. Benigni 30 Laudonia 30 Wissner Gross 30 Comet Hartley 2 30 Hornack 30 Louis Ignarro 30 amateur astronomers 30 Svensmark 30 Peony nebula star 30 ESA Integral 30 Goretski 30 meter Keck telescopes 30 Higgs Boson 30 Hipparchus 30 SpaceShipOne designer 30 XTE J# 30 LCROSS 30 Zrenner 30 Stiglin 30 Chris Lintott 30 interstellar dust 30 Comet McNaught 30 NASA Stratospheric Observatory 30 cosmologist Stephen Hawking 30 filamentary structure 30 Ring Nebula 30 Gengos 30 physicist Richard Feynman 30 astro physics 30 Jarecke 30 Tirri 30 Hugg 30 Laser Interferometer Space 30 Proxima Centauri 30 Arcelay 30 Hubble 30 Type Ia supernovae 30 German astronomer Johannes 30 mathematicians 30 mu Arae 29 Trojan asteroids 29 Cassibo 29 Piscitello 29 Carey Lisse 29 Levanti 29 Kepler telescope 29 Johannes Kepler 29 Udoff 29 Hoelzel 29 Gazzaniga 29 Canterino 29 Tobin Brinker 29 Teska 29 Comet Halley 29 Cosmic Background Explorer 29 Rutan 29 Kepler 9b 29 Theoretical physicists 29 HIP #b 29 Andrew Chaikin 29 Felag 29 Kepler observatory 29 Planetary Science Institute 29 Webb Telescope 29 Planetary Transits 29 Seymour Benzer 29 WISE telescope 29 Solar Orbiter 29 Comet Hartley 29 Zeta Ophiuchi 29 Iannitelli 29 GJ#b 29 Porricelli 29 Beccari 29 planetary nebulae 29 magnetic monopoles 29 Lucasian Chair 29 EPOXI 29 Yergeau 29 orbits 29 Rosaly Lopes 29 gravitationally lensed 29 Herschel telescope 29 Delle Donna 29 Treusch 29 Gregory Benford 29 DEEP2 29 spacecraft flyby 29 LaBombard 29 Werner von Braun 29 Kurzweil 29 Gary Wysocky 29 Diegelman 29 Stafstrom 29 Jack Swigert 29 Arthur Kornberg 29 Mikutel 29 Bajor 29 Prete 29 Cantania 29 PSR B# +# 29 Harry Kroto 29 COROT 7b 29 BP Piscium 29 Danchuk 29 George Gamow 29 infrared telescopes 29 Saturn moon 29 Gingerella 29 Roger Highfield 29 engineer Burt Rutan 29 Klemarczyk 29 Mössbauer 29 Suzanne Klapp 29 Scott Heinauer 29 Mioli 29 Bencal 29 planets Kepler 29 Neil DeGrasse Tyson 29 Bill Borucki Kepler 29 Morasco