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(Click for frequent words.) 64 Andrew Fraknoi 57 astronomy 57 Charles Bailyn 51 Owen Gingerich 51 planetary astronomy 50 Huchra 49 Nasser Peyghambarian 49 Andrea Ghez 49 Lawrence Krauss 49 Mary Voytek 49 Fran Bagenal 48 Pasachoff 48 Geza Gyuk 48 planetary science 48 Ed Weiler 48 Bill Borucki Kepler 48 Charles Elachi 47 Richard Binzel 47 Werthimer 47 Chris Lintott 47 Astronomy 47 Natalie Batalha 47 David Southwood ESA 46 Bonadurer 46 astrophysics 46 Duari 46 Garth Illingworth 46 Peter Diamandis 46 particle astrophysics 46 A'Hearn 46 Ellery Hale 46 Maria Zuber 45 Sasselov 45 Meg Urry 45 Shri Kulkarni 45 Vassilis Angelopoulos 45 observational astronomy 45 Jedicke 45 IUCAA 45 Lunine 45 Avishay Gal Yam 45 Wolszczan 45 Roddam Narasimha 45 Pier Oddone 45 Krimigis 45 Scott Kardel 45 Guhathakurta 45 Jeremy Bailenson 44 Tommaso Treu 44 Catherine Cesarsky 44 Carlos Frenk 44 Richard Berendzen 44 Flandrau Science Center 44 Dante Lauretta 44 Rolf Kudritzki 44 Mlodinow 44 Eric Becklin 44 Reinhard Genzel 43 Spergel 43 Awschalom 43 infrared astronomy 43 Carilli 43 Chris Rapley 43 Kailash Sahu 43 Vakoch 43 Dalcanton 43 Greg Delory 43 astro physics 43 Fred Hoyle 43 Stassun 43 Spudis 43 Alexander Kashlinsky 43 Peter H. Diamandis 43 Konacki 43 Harlow Shapley 43 Alex Filippenko 43 MCDB 43 Kavandi 43 Dan Werthimer 43 Erik Asphaug 42 San Francisco Exploratorium 42 Joel Primack 42 Arkani Hamed 42 astronomer 42 CU Boulder physics 42 Karoff 42 Franck Marchis 42 Geoffrey Marcy 42 Martin Haehnelt 42 Beichman 42 astrophysical sciences 42 Narlikar 42 Saul Perlmutter 42 Reneke 42 Satish Dhawan 42 Jayant Narlikar 42 Percival Lowell 42 Marvin Marshak 42 planetary scientist 42 physics astronomy 42 Zarnecki 42 Rogier Windhorst 42 Martin Tomasko 42 Stan Woosley 42 UA Lunar 42 Wick Haxton 42 Sara Seager 42 planetary geology 42 Joe Veverka 42 theoretical astrophysics 42 astrophysicist 42 heliophysics 41 Bruce Margon 41 Ellen Stofan 41 Schawinski 41 Gaensler 41 Vourlidas 41 arithmetic geometry 41 Planetary Lab 41 Mario Livio 41 Foing 41 William Borucki 41 Douglas Osheroff 41 Lowell Observatory 41 Jonathan Lunine 41 Robert Jedicke 41 Dean Pesnell 41 Richard Mushotzky 41 Kevin Padian 41 Avi Loeb 41 Tombaugh 41 Nehru Planetarium 41 Thomas Zurbuchen 41 Grote Reber 41 Bruce Jakosky 41 planetary astronomer 41 Lee Smolin 41 Mark Changizi 41 Physics Applied Physics 41 Christopher Chyba 41 Filippenko 41 MIT planetary scientist 41 Jennifer Heldmann 41 Kudritzki 41 Ray Jayawardhana 41 Hakan Svedhem 40 Gerard Kuiper 40 neutrino physics 40 Bottke 40 Roger Revelle 40 Clyde Tombaugh 40 astrobiology scientist 40 Particle physics 40 IYA# 40 Gerhard Schwehm 40 Horanyi 40 Tegmark 40 Krishtalka 40 van Wyhe 40 Neil DeGrasse Tyson 40 d' Espagnat 40 Seracini 40 COBE satellite 40 Ed Buckbee 40 Fleischmann Planetarium 40 Baross 40 UA Steward Observatory 40 Neil deGrasse Tyson 40 Karl Menten 40 planetary missions 40 Rusty Schweickart 40 Charles Beichman 40 Cosmic Microwave Background 40 Giovanni Cassini 40 Nasaw 40 Kasturirangan 40 National Optical Astronomy 40 Aryabhatta 40 Theodore von Karman 40 Srikumar Rao 40 boyhood aspiration 40 Sidewalk Astronomers 40 Gregory Asner 40 Leonard Shlain 40 astrophysical phenomena 40 Melosh 40 Lewis Dartnell 40 planetary sciences 40 Allen Hynek 40 Robotic Exploration 40 Marcus Chown 40 Jill Tarter 40 Mandushev 40 Erkki Ruoslahti MD Ph.D. 40 Phil Plait 40 planetary explorations 40 Ed Weiler associate 40 Robin Canup 40 astrophysical 40 Carnegie Observatories 40 Smithsonian Astrophysical Observatory 40 Kazilek 40 Zaven Khachaturian 40 Sigma Pi Sigma 40 Kawaler 40 Adrian Melott 40 James Kakalios 39 Leonard Susskind 39 Kepler Mission 39 Bahcall 39 physicist Gerald Gabrielse 39 Vikhlinin 39 Dr. Michio Kaku 39 Rosaly Lopes 39 cosmology 39 astronomical phenomena 39 celestial observations 39 Syun Ichi Akasofu 39 Gmachl 39 Prof. Hawking 39 Jerome Drexler 39 Matthias Mehl 39 Don Gurnett 39 Kip Thorne 39 SSRL 39 Papovich 39 Dean Regas 39 Plait 39 George Gamow 39 Grillmair 39 Cassini Huygens 39 Rathnasree 39 Flandrau 39 Boris Shustov 39 Kevin Schawinski 39 Giacconi 39 Gehrz 39 Fred Kavli 39 Jay Melosh 39 Taimina 39 Popular Astronomy 39 astronomers 39 PPARC 39 Charon Pluto 39 Chandra Wickramasinghe 39 Prof Hawking 39 Epsilon Aurigae 39 Jenniskens 39 Consolmagno 39 particle physicists 39 NASA Jet Propulsion Lab 39 Giovanni Picardi 39 renowned cosmologist 39 Zakhor 39 profes sor 39 particle physics 39 Amateur Astronomers 39 Andrew Chaikin 39 Planetary Laboratory 39 COBE 39 planets comets 39 theoretical physics 39 Hari Manoharan 38 cosmologists 38 Magueijo 38 Professor Hawking 38 director Charles Elachi 38 Dimitar Sasselov 38 submillimeter wavelengths 38 Cygnus Lyra region 38 superstring theory 38 Grammier 38 Capak 38 Werner Dahm 38 Zur Hausen 38 Sushil Atreya 38 Fundamental Physics 38 Soljacic 38 Seth Shostak 38 Estrada Belli 38 John Zarnecki 38 Paul Mellars 38 Amateur Astronomy 38 Stanley Falkow 38 Hubble astronomer 38 coronal loops 38 Raymond Jeanloz 38 Inez Fung 38 Zewail 38 TIFR 38 Erik Demaine 38 Neil Turok 38 Cassini imaging 38 Cassini magnetometer 38 Murray Gell Mann 38 Caltech astronomer 38 Saturn rings 38 Ionosphere Center 38 Cosmologist 38 Binzel 38 Raphael Kudela professor 38 Emily Lakdawalla 38 Marc Levoy 38 Jeffrey Kargel 38 Rychard Bouwens 38 Maciej Konacki 38 Kuchner 38 Roukes 38 outer planets 38 IYA 38 exobiology 38 scientist Greg Delory 38 geomicrobiology studying particles 38 Corot 7b 38 Planetary Institute 38 SETI 38 ESA Herschel 38 Andrei Linde 38 Paul Chodas 38 Steward Observatory 38 theoretical physicist 38 Konstantin Tsiolkovsky 38 William Happer 38 Markram 38 Wettergreen 38 ufology 38 Kisailus 38 Gravitational Physics 38 Michio Kaku 38 Merzenich 38 oceanography meteorology 38 Erlingsson 38 astronomy buffs 38 Uranus Neptune 38 exopolitics 38 Gehrels 38 Project Ozma 38 Laibson 38 Kazantzidis 38 Jamie Elsila 38 Squyres 38 Ehud Shapiro 37 Dava Newman 37 de Pater 37 Astronomical Society 37 Peter Jenniskens 37 Kuiper belt objects 37 earthshine 37 Victor Stenger 37 Carl Sagan 37 Galileo Galilei #-# 37 Winglee 37 Jay Pasachoff professor 37 Halton Arp 37 Buehler Planetarium 37 Nousek 37 paleontology 37 Raymond Kurzweil 37 Astronomical Society AAS 37 Budker 37 Pluto demotion 37 Voyager spacecraft 37 Pisgah Astronomical Research 37 decadal survey 37 celestial phenomenon 37 exo planets 37 Delta Cephei 37 Diamandis 37 Tsien 37 Stephen Thorsett 37 John Preskill 37 Stephen Heppell 37 Leon Lederman 37 astronomer Johannes Kepler 37 observatory 37 Berners Lee 37 Pan STARRS 37 astronomer Seth Shostak 37 physicist 37 particle colliders 37 sedimentary geology 37 Cosmic Background Explorer 37 Hänsch 37 Carl Friedrich Gauss 37 submillimeter galaxies 37 alien civilizations 37 Renu Malhotra 37 Roald Hoffman 37 gamma ray astronomy 37 Observatory astronomer 37 P. Feynman 37 Pieter van Dokkum 37 Rudolf Grimm 37 Hans Deeg 37 heliocentric model 37 Extraterrestrial Intelligence Institute 37 Borucki 37 Fritjof Capra 37 Planetary Physics 37 Astrophysical Institute 37 Margarita Marinova 37 Kroto 37 universe Kaku 37 Nicolas Copernicus 37 Caltech 37 Nima Arkani Hamed 37 Mancall 37 Gravitational waves 37 LSST 37 Planetary Society 37 Chunlei Guo 37 Kieda 37 Fritz Zwicky 37 Stefanie Komossa 37 Michael Shermer 37 du Sautoy 37 van der Leeuw 37 Klawe 37 exoplanetary 37 Richard Feynman 37 Amateur astronomers 37 Djorgovski 37 Robert Zubrin 37 theistic evolutionist 37 StarDate 37 Drake Deming 37 Hawking 36 amateur skywatchers 36 Astroparticle Physics 36 Gravitational lensing 36 Hockfield 36 Tim Coughlin MAusIMM 36 Comet Halley 36 Bohdan Paczynski 36 Irving Wladawsky Berger 36 Nasa Kepler 36 planetarium 36 Mount Lemmon SkyCenter 36 Figer 36 Bad Astronomy 36 Ben Shneiderman 36 Mani Bhaumik 36 Decadal Survey 36 cellular biology 36 science 36 astrophysicists 36 seismology 36 rocky extrasolar planet 36 Robin Scagell vice 36 Raymond Tallis 36 Wernher Von Braun 36 astrobiology 36 Seljak 36 Royal Astronomical Society 36 Comet Hale Bopp 36 UCO Lick 36 occultations 36 Nasa Ames 36 Arno Penzias 36 Michael Studinger 36 plasmonics 36 Marscher 36 nautical archeology 36 planets moons 36 Chicago Adler Planetarium 36 archaeo 36 Adam Riess 36 Brother Guy Consolmagno 36 linguist Geoffrey Nunberg 36 Leonard Kleinrock 36 Scheeres 36 Alexey Vikhlinin 36 Earthscope 36 Rasio 36 physics astrophysics 36 Ben Barres 36 Krulwich 36 mathematician physicist 36 N. Rathnasree 36 largest moon Charon 36 inhabitable planets 36 physics laureate 36 journal Icarus 36 Cernan 36 Seymour Benzer 36 Thomas Harriot 36 axion 36 Gondolo 36 Astrophysics 36 molecular biophysics 36 Astrobiology 36 Explorer WISE 36 Lynn Margulis 36 Jupiter Uranus 36 Lick Observatory 36 Roel Vertegaal 36 James Fanson 36 Nobel laureate physicist 36 Conselice 36 Emilio Bombay 36 Smithsonian astronomer 36 Hiroo Kanamori 36 nanosciences 36 Roger Penrose 36 Barry Barish 36 elliptical orbits 36 SETI Search 36 Mamoru Mohri 36 quantum optics 36 Spaceguard 36 Minnesota Starwatch 36 ESA Integral 36 Story Musgrave 36 Bojowald 36 cosmologist 35 Gabaix 35 Galaxy Evolution 35 extrasolar planetary systems 35 Madhulika Guhathakurta 35 physicist mathematician 35 Chu Nobel laureate 35 Bakich 35 MARSIS radar 35 faith Jezierski 35 asteroseismology 35 Shostak 35 astronomer Edmond Halley 35 Polishook 35 Satyendra Nath Bose 35 Theodor Hänsch 35 celestial objects 35 SDSS II 35 SkyCenter 35 Gell Mann 35 star clusters nebulae 35 NASA STEREO 35 American Astronautical Society 35 astronomy astrophysics 35 Jodrell 35 physics 35 Herzberg Institute 35 Ted Wragg 35 panspermia 35 Wide Angle Search 35 astronomical observations 35 Seoul Soongsil University 35 THEMIS 35 Huachuca Astronomy Club 35 Varmus 35 Calaprice 35 Jay Famiglietti 35 Alivisatos 35 Allan Sandage 35 Russian cosmonaut Yuri Malenchenko 35 theoretical astrophysicist 35 Galilean moons 35 cosmological observations 35 Benoit Mandelbrot 35 superstring 35 retrograde orbits 35 Stuhlinger 35 HiRISE 35 planetary geologist 35 Colin Pillinger 35 Particle Physics 35 Schellnhuber 35 matter antimatter asymmetry 35 gaseous planet 35 James Gimzewski 35 VIRTIS 35 WorldWide Telescope 35 Adaptive Optics 35 NRAO 35 Nasa Jet Propulsion 35 Keck Observatory 35 nicknamed Xena 35 Space Physics 35 IBM Almaden Research 35 moons circling 35 exoplanets planets outside 35 Astrobiology Institute 35 astronomy buff 35 Skidaway Marine 35 Sitchin 35 Gazzaniga 35 celestial mechanics 35 Zubrin 35 Astrophysics Cambridge Mass. 35 Composite Infrared Spectrometer 35 detect gravitational waves 35 Gregory Benford 35 John van Wyhe 35 interplanetary spacecraft 35 STScI 35 Pretor Pinney 35 planets asteroids 35 Plitnik 35 Jay Pasachoff 35 Stephan Quintet 35 Hubble observations 35 Robin Scagell 35 professor Arthur Zajonc 35 Steven Cummer 35 stargazer 35 cosmic microwave background 35 Shanghai Astronomical Observatory 35 Mitchel Resnick 35 archeology anthropology 35 Storrie Lombardi 35 Mullard Space Science 35 Galilean satellites 35 Professor Geim 35 Nicholas Kurti 35 relativity theory 35 KIPAC 35 Klumpar 35 Kavli Institute 35 Dessler 35 Richard Binzel professor 35 Physics Astronomy 35 humanities 35 astrobiological 35 McLurkin 35 Henize #-# 35 Astronomical 35 Physics 35 Science Popularisation Association 35 classical antiquity 35 Julia Slingo 35 SwRI Space 35 Libra constellation Vogt 35 Dennis Mammana 35 Martha Minnow 35 planemos 35 Kenneth Libbrecht 35 Konrad Dannenberg 35 Hubble telescope 35 amateur astronomer 35 auroral 35 Boroson 35 Professor Chandra Wickramasinghe 35 IfA 35 Mackay Sim 35 Extraterrestrial Intelligence 35 e MERLIN 35 Priyamvada Natarajan 34 Sromovsky 34 spiral nebulae 34 Ramesh Raskar 34 Imiloa 34 Southern Observatory ESO 34 Molczan 34 International Astronomical 34 Christophe Lovis 34 Japan NAOJ 34 Exploratorium 34 astroparticle physics 34 Pillinger 34 moons 34 Mandelbrot 34 Brother Consolmagno 34 Bookstaber 34 Friis Christensen 34 Marc Kuchner 34 lensing galaxy 34 geology botany 34 Wolfgang Ketterle 34 Fiske Planetarium 34 particle physicist 34 chancellor emeritus 34 Ferenc Krausz 34 planet Uranus 34 supermoon 34 potentially habitable planets 34 Stargazing Live 34 celestial sphere 34 Guy Consolmagno 34 botany zoology 34 Extrasolar planets 34 solstices 34 Boris Rubinsky 34 manned lunar landing 34 Kuiper Belt Object 34 journal Monthly Notices 34 innermost planet 34 Herschbach 34 CfA 34 Homayoon Kazerooni 34 Gaia Theory 34 Feynman 34 extragalactic 34 Nial Tanvir 34 MIT Haystack Observatory 34 Margon 34 organismal biology 34 Kitt Peak 34 S. Lindzen 34 Carina constellation 34 planets circling stars 34 adjoint professor 34 SDSS 34 Nicolaus Copernicus 34 Educators SPACE 34 Max Tegmark 34 Marcus du Sautoy 34 Neils Bohr 34 Kopernik Observatory 34 vertebrate zoology 34 Lucasian professor 34 Kakalios 34 UKIRT 34 Rathnashree 34 Mojzsis 34 Saturn Cassini 34 anthropic principle 34 coronal heating 34 trans Neptunian objects 34 magnetar 34 NOAO 34 Peter Woit 34 mathematics 34 Kaku 34 extrasolar planets 34 physicist Niels Bohr 34 WASP #b 34 physicists 34 German astronomer Johannes 34 Ketterle 34 Ariel Anbar 34 Matloff 34 theoretical physicist Stephen Hawking 34 John Frangioni 34 orbiting Hubble Space Telescope 34 MINOS 34 Hayden Planetarium 34 cosmic ray 34 Haidt 34 moon 34 Jack Lissauer 34 XMM Newton 34 telescope 34 Edwin Hubble 34 Johannes Kepler 34 sundials 34 SORCE 34 Svedhem 34 Ivor Crewe 34 Cassini 34 physicist Richard Feynman 34 photonics 34 Astronomical Observatory 34 astrometry 34 occulted 34 Maussan 34 Henrik Svensmark 34 BioLogos 34 Jet Propulsion Laboratory 34 COROT 34 Nathan Kaib 34 Condensed Matter Physics 34 constellation Ursa Major 34 NCEAS 34 Galileo telescope 34 Quadrantids 34 BioLogos Foundation 34 noctilucent clouds 34 de Gennes 33 cosmological theories 33 Michal Lipson 33 PASADENA Calif. Astronomers 33 Voorwerp 33 Anthony Remijan 33 Stardome Observatory 33 Dan Buhl Planetarium 33 proto cluster 33 Alexander Goncharov 33 Carnegie Institution planetary geologist 33 geology paleontology 33 Astrophysical 33 Coma cluster 33 Perkowitz 33 icy moons 33 HD#b 33 Fermi telescope 33 TrES 4 33 EarthScope 33 Bernhard Fleck 33 astronomer Percival Lowell 33 planetary exploration 33 Dr. Daniel Geschwind 33 Spacewatch 33 optical interferometry 33 extrasolar planets orbiting 33 cognitive neuroscience 33 Crab Nebula 33 ringed planet 33 Muons 33 Mackwell 33 Preskill 33 WFC3 33 NASA astrobiology 33 globular clusters 33 exoplanet orbiting 33 Stanford Ovshinsky 33 Parcak 33 Hipparchus 33 Noel Sharkey 33 theoretical physicists 33 inch refractor telescope 33 productive astronomical observatory 33 AIAA 33 comets orbiting 33 Atmospheric Physics 33 SCP #F# 33 planetary Transits 33 Keck telescope 33 Great Observatories 33 African Astronomical Observatory 33 journal Meteoritics 33 inch refracting telescope 33 stellar seismology 33 retrograde orbit 33 Harvard Smithsonian Astrophysical 33 Chris Chyba Princeton 33 WMAP 33 Extra Terrestrial Intelligence 33 Louis Ignarro 33 Alicia Soderberg 33 assumed planets circling 33 Makoto Kobayashi 33 Felice Frankel 33 Jan Rabaey 33 LIGO Scientific Collaboration 33 Xavier Delfosse 33 Earthlike planets 33 Comet Machholz 33 extrasolar planet 33 Kopernik 33 Anne Verbiscer 33 Udoff 33 nanomechanics 33 Wissner Gross 33 Jan Zalasiewicz 33 R. Mallar Vizhi 33 distant supernovae 33 Large Synoptic Survey 33 Francesca Cordeiro 33 Anaxagoras 33 greatest insect emergences 33 gravitational lensing 33 Gliese #G 33 Lucasian Chair 33 Krishna Bharat 33 Volker Liebig ESA 33 meteor showers 33 mathematician Stephen Hawking 33 archeology 33 Dave Reneke 33 physicist Max Planck 33 UDFy # 33 gravitational wave 33 Halley comet 33 superstrings 33 Solar System 33 gravitational waves 33 Valley Amateur Astronomers 33 Mr Damazer 33 steering wheel tilts 33 neuropharmacology 33 SN Bose 33 algebraic geometry 33 Von Frese 33 origins spectrograph 33 Petra Boynton 33 Lars Hernquist 33 IceCube 33 Makiko Sato 33 gravitational lenses 33 Ovshinsky 33 Palomar Observatory 33 computational neuroscience 33 MicroFUN 33 SN #A 33 Debra Moriarity 33 faraway galaxies 33 XMM Newton X ray 33 Astronomer 33 comets asteroids 33 VISTA telescope 33 auroras 33 Frank Wilczek 33 Lauterbur 33 Adaptive optics 33 Bethany Ehlmann 33 Wolfgang Brandner 33 Reijo Pera 33 astronautics 33 Mount Stromlo Observatory 33 cosmic 33 Gerhard Neukum 33 D' Espagnat 33 magnetospheric imaging instrument 33 CB Devgun 33 Foro Italico gusty winds 33 Meenakshi Wadhwa 33 Norbert Wiener 33 Roger Pielke 33 foreground galaxy 33 Planetary Studies 33 Guy Wormser 33 cryptozoology 33 Ilya Prigogine 33 Arlie Petters 33 Dr. von Hagens 33 Professor Valerie Beral 33 Comet #P 33 Dwarf Planet 33 Planck 33 Rowthorn 33 Parapsychology 33 NAOJ 33 Kuiper Belt Objects 33 exo planet 33 NASA THEMIS 33 astronomical 33 distant quasars 33 Deep Impact Principal Investigator 33 Perseid meteor shower 33 Wilkinson Microwave Anisotropy Probe 33 supernatural thriller Knowing 33 Cosmic Evolution 33 MPIfR 33 Space Telescope Science 32 anthropology 32 Roswell Incident 32 Fomalhaut b 32 Squyres Cornell 32 Terrestrial Planet Finder TPF 32 Rainer Klement 32 paleobotany 32 cosmic microwave radiation 32 distant galaxy 32 Subrahmanyan Chandrasekhar 32 Richard Lewontin 32 gravitational microlensing 32 biophotonics 32 Jim Kasting 32 perigee 32 Alaska Fairbanks Geophysical 32 orbiting gamma ray 32 palaeontology 32 celestial 32 faint smudges 32 Cassini scientist 32 stargazing 32 Comet Elenin 32 observational cosmology 32 Astronautics IAA 32 Warren Blier 32 Planck satellite 32 Solar Orbiter 32 Engelbart 32 comet Lulin 32 Garan rode 32 Leonids 32 Neptune Uranus 32 AKARI 32 Orion Nebula 32 Sir Harold Kroto 32 Bryan Gaensler 32 ecliptic 32 National Astronomical Observatory 32 Nanoscience 32 professor Eric Herzik 32 infrared observatory 32 mu Arae 32 Anisotropy Probe WMAP 32 astronomical objects 32 Sir Harry Kroto 32 MIT Kavli Institute 32 Planetary Science 32 meteorology 32 Geminga 32 planetary conjunctions 32 Newton Principia 32 primatology 32 Botstein 32 Lunar Exploration 32 Carl Woese 32 astronomer mathematician 32 Astrological 32 Nasa 32 Prof Pillinger 32 Cosmology 32 Susanne Shultz 32 Pierre Simon Laplace 32 COSPAR 32 CMEs 32 Yudof