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(Click for frequent words.) 58 Pieter van Dokkum 57 Peter Jenniskens 57 Bill Borucki Kepler 56 Richard Binzel 55 Ellen Stofan 54 Guhathakurta 54 Dimitar Sasselov 54 Halton Arp 54 Chandra Wickramasinghe 54 Adam Riess 54 Zolensky 54 Harlow Shapley 54 Kuiper belt objects 53 Fred Hoyle 53 Hamish Pritchard 53 Mate Adamkovics 53 Gregory Asner 53 Coma Cluster 53 Bruce Margon 53 Rychard Bouwens 53 Avishay Gal Yam 53 Franck Marchis 53 Kashlinsky 53 Charles Beichman 53 Anthony Remijan 53 Carlos Frenk 52 Andrea Ghez 52 Drake Deming 52 supersymmetric particles 52 cometary material 52 planetary nebulas 52 distant supernovae 52 Pupa Gilbert 52 Foing 52 Rayleigh scattering 52 Cosmic Microwave Background 52 Reinhard Genzel 52 Neil Gehrels 52 Richard Berendzen 52 Bonnie Buratti 52 Huchra 52 faintest galaxies 52 Wolfgang Brandner 51 Coma cluster 51 Karl Menten 51 Jamie Elsila 51 Astrophysics Cambridge Mass. 51 Storrie Lombardi 51 Djorgovski 51 Priyamvada Natarajan 51 faint smudges 51 Yoel Fink 51 Nikku Madhusudhan 51 Changizi 51 Rathnasree 51 GALEX 51 Christopher Chyba 51 Cees Dekker 51 Jenniskens 51 Dean Pesnell 51 baryon acoustic oscillations 51 axion 51 Richard Mushotzky 51 type Ia supernovae 51 astrophysical objects 51 Invisibility cloak 51 Ferenc Krausz 50 van Arkel discovery 50 dust enshrouded 50 Friis Christensen 50 Vikhlinin 50 Stéphane Udry 50 distant supernovas 50 exo planet 50 Gaensler 50 Kuiper Belt Objects 50 lensing galaxy 50 Max Tegmark 50 particle astrophysics 50 P/# A2 50 Hipparcos 50 infrared astronomy 50 tholins 50 spectroscopically 50 Geza Gyuk 50 cosmological distances 50 Bernard Foing 50 Sasselov 50 Grillmair 50 Seth Shostak 50 Shuang Zhang 50 Spudis 50 de Pater 50 SN #A 50 Julia Slingo 50 Christophe Lovis 49 Enric Palle 49 Lunine 49 ESO VLT 49 Maciej Konacki 49 Tevatron experiments 49 Fermi telescope 49 sterile neutrino 49 intrinsic brightness 49 Magnetars 49 Professor Wickramasinghe 49 weak gravitational lensing 49 Alexander Goncharov 49 Anthony Barnosky 49 Pierre Friedlingstein 49 X ray wavelengths 49 Cassini magnetometer 49 Higgs bosons 49 Paul Alivisatos 49 coronal heating 49 Cynthia Rosenzweig 49 Thiemens 49 Gamma ray burst 49 Fritz Zwicky 49 called lobate scarps 49 Dumbbell Nebula 49 Brenda Ekwurzel climate 49 David Spergel 49 Kaltenegger 48 rotating neutron stars 48 Cepheid variables 48 Gravitational lensing 48 Shri Kulkarni 48 Svedhem 48 galaxy redshift 48 curator Roger Launius 48 Krimigis 48 Richard Camilli 48 gravitational radiation 48 Infrared Array Camera 48 Sara Seager 48 superstrings 48 spectrographic 48 Papovich 48 Dwarf galaxies 48 Antonio Lombatti church 48 Nial Tanvir 48 Madhulika Guhathakurta 48 extragalactic 48 Edmund Halley 48 Duari 48 extrasolar 48 Vassilis Angelopoulos 48 AGNs 48 interplanetary spacecraft 48 Institut d' Astrophysique de 48 Capak 48 interstellar dust clouds 48 galaxy formation 48 Gerard Kuiper 48 Tegmark 48 rocky extrasolar planet 48 Peony nebula star 48 Steven Cummer 48 Henize #-# 48 Brera Observatory 48 journal Icarus 48 Nima Arkani Hamed 48 Jay Melosh 48 planetary Transits 48 planets atmospheres 48 Mandushev 48 What bothers Eriacho 48 Halzen 48 NASA WMAP 48 millimeter wavelengths 48 scale invariance 48 galaxy M# [002] 48 Pasachoff 48 CfA 48 Ravishankara 48 VISTA telescope 48 filamentary structure 48 Composite Infrared Spectrometer 48 Alivisatos 48 Squyres Cornell 48 orbiting gamma ray 48 Vakoch 48 gravitational wave 48 circumstellar 48 Ken Herkenhoff 48 #x magnification [002] 48 Paul Mellars 48 Kazantzidis 48 Astrophysical 48 WMAP satellite 47 circumstellar disks 47 exoplanetary 47 superfluids 47 Werthimer 47 homochirality 47 Maria Zuber 47 multiband imaging photometer 47 Gondolo 47 Tommaso Treu 47 Nasa Goddard Space 47 twin STEREO spacecraft 47 redshifted 47 N. Rathnasree 47 absorption spectra 47 polar mesospheric clouds 47 Fred Grassle 47 matter antimatter asymmetry 47 dynamical evolution 47 Nasa Kepler 47 Stephane Udry 47 Robert Jedicke 47 Type 1a supernovae 47 Busemann 47 HUDF 47 Min Gu 47 starburst galaxy 47 SNR #-#.# 47 planet Gliese #g 47 STScI 47 Cepheids 47 Nicholas Conard 47 Jean Pierre Bibring 47 Ryskin 47 Lyman alpha 47 cosmic phenomena 47 Fermi LAT 47 distant quasar 47 Nicholas Kotov 47 retrograde orbits 47 filamentary 47 Delta Cephei 47 Kuiper Belt Object 47 VIRTIS 47 Observatoire de Paris 47 Maria Karayiorgou 47 UKIRT 47 Banerdt 47 infrared spectra 47 Carnegie Observatories 47 Michael Studinger 47 Descent Imager Spectral Radiometer 47 Astrophysical Institute 47 Mario Livio 47 Giovanni Cassini 47 smallest exoplanet 47 faint galaxies 47 Hammerschmidt Hummel 47 Linda Spilker 47 electron neutrinos 47 cosmic strings 47 Rich Zurek 47 Carey Lisse 47 spiral nebulae 47 Asantha Cooray 47 Meteoritics 47 astronomical objects 47 Svensmark 47 proton antiproton collisions 47 RXTE 47 Rudy Schild 47 type Ia supernova 47 Mark Norell 47 Kris Pister 47 MG J# +# 47 VY Canis Majoris 47 Omega Centauri 47 Bojowald 46 Cat Paw Nebula 46 Carlo Pedretti 46 Appy Sluijs 46 luminous galaxies 46 ESO telescope 46 Sushil Atreya 46 distant quasars 46 Helix Nebula 46 Amy Mainzer 46 transiting exoplanets 46 Malcolm Fridlund 46 Chris Rapley 46 Saul Perlmutter 46 planetary nebulae 46 Extrasolar 46 protoplanetary 46 David Southwood ESA 46 submillimeter 46 Mien Chie Hung 46 Estrada Belli 46 Gravitational waves 46 supernova SN 46 Corot 9b 46 VIRTIS instrument 46 Govindasamy Bala 46 sundog 46 Arturo Casadevall 46 Glikson 46 Gal Yam 46 Jonathan Lunine 46 Percival Lowell 46 ESA Hubble 46 ULP cepheids 46 Mars Squyres 46 Hyakutake 46 Muons 46 Ziurys 46 Vourlidas 46 active galactic nucleus 46 William Happer 46 Cosmic Evolution 46 GQ Lupi 46 Linda Calabresi 46 Pavel Kroupa 46 Evolution Explorer 46 moons Phobos 46 magnetic monopoles 46 celestial mechanics 46 eclipsing binary 46 trans Neptunian objects 46 Di Achille 46 planets comets 46 Neil DeGrasse Tyson 46 inch refracting telescope 46 Rolf Kudritzki 46 Elwyn Simons 46 planetary astronomy 46 Louise Prockter 46 star clusters nebulae 46 report Arialdi Minino 46 Vittorio Formisano 46 Konacki 46 Jay Zwally 46 Type Ia supernovas 46 brightnesses 46 Earthlike 46 jovian 46 Planetary Studies 46 hunting Kepler telescope 46 Michael A'Hearn 46 cosmic cannibal 46 Alfven waves 46 John Grotzinger 46 Ron O'Dor 46 Baross 46 Niles Eldredge 46 sunlike stars 46 Samuel Wickline 46 Stefan Willich 46 weakly interacting 46 Waleed Abdalati 46 Klekociuk 46 Alfred McEwen 46 Martian meteorites 46 Mike Raupach 46 Comet Halley 46 energetic electrons 46 AB Aurigae 46 Convection Rotation 46 Komossa 46 Hörst 46 Spitzer infrared 46 PSR B# +# 46 Cosmic Microwave Background CMB 46 Doug Biesecker 46 Virend Somers 46 Shaviv 45 constellation Eridanus 45 faraway galaxies 45 Avi Loeb 45 Tharsis Rise 45 Queloz 45 MIT Haystack Observatory 45 earthshine 45 distant galaxy 45 submillimeter galaxies 45 Jeffrey Plaut 45 optical spectra 45 gravitational lenses 45 Exoplanets 45 X ray afterglow 45 Adam Zertal 45 assumed planets circling 45 Lika Guhathakurta 45 Louis van Tilborgh 45 Deep Impact Principal Investigator 45 Roger Launius 45 Kimmie Ng 45 Mark Changizi 45 exo planets 45 AKARI 45 Rainer Klement 45 detect gravitational waves 45 Henshilwood 45 CHARLES ONYANGO email 45 nebulas 45 moons circling 45 sulfur isotope 45 Gmachl 45 Robock 45 cometary dust 45 Paolo Galluzzi director 45 Spitzer infrared spectrograph 45 Udry 45 exoplanet orbiting 45 UVIS instrument 45 meteoritic 45 Fred Kavalier 45 comets orbiting 45 Anisotropy Probe WMAP 45 reionization 45 RHESSI 45 MP Birla Planetarium 45 ARPES 45 Abigail Allwood 45 Mary Voytek 45 Mewaldt 45 astrophysical phenomena 45 Gavin Prideaux 45 Digitized Sky Survey 45 Paul Chodas 45 sextillion stars 45 Triangulum Galaxy 45 zodiac constellations 45 Credits ESA 45 Ralf Gellert 45 Fornax cluster 45 astrophysical 45 Extrasolar Planets 45 Andrew Glikson 45 Frank Mazzotti 45 Pier Paolo Pandolfi 45 conclusions NASA Astrobiology 45 astrometric 45 Compact Reconnaissance Imaging Spectrometer 45 Perseus Cluster 45 Ulrich Dahmen 45 galactic cosmic rays 45 Caltech astronomer 45 gravitational microlensing 45 molecular systematics 45 Eagle Nebula 45 Radioastronomy 45 comet Tempel Tuttle 45 quasars 45 interplanetary dust 45 Frederic Pont 45 Auger Observatory 45 Ellery Hale 45 TrES 4 45 Cosmic Background Explorer COBE 45 spectroscopic measurements 45 nebular 45 Gabriel Vecchi 45 novas 45 infalling 45 atmospheric aerosols 45 Mojzsis 45 extrasolar planets orbiting 45 Mercury magnetosphere 45 Tod Strohmayer 45 microlensing events 45 Alex Zettl 45 Cometary 45 Last Moonwalker Children 45 Henrik Eberle 45 Oort Cloud 45 blackbody radiation 45 Alberto Saal 45 cosmological parameters 45 V. Ramanathan 45 Cassini imaging 45 GRBs 45 XMM Newton observations 45 Type Ia supernova 45 Cygnus Lyra region 45 Richard Prum 45 SUSY 44 luminosities 44 ESA XMM Newton 44 Milky Way halo 44 Solar TErrestrial RElations Observatory 44 WASP #b 44 Infrared Thermal Imaging Spectrometer 44 Lynda Chin 44 magnetars 44 Dante Lauretta 44 presolar grains 44 superstring theory 44 Catherine Cesarsky 44 submicroscopic 44 extrasolar worlds 44 planets asteroids 44 Andrea Baccarelli 44 permanently shadowed craters 44 XMM Newton 44 Tim Coughlin MAusIMM 44 cosmological theories 44 spinels 44 SPICAM 44 spaceweather.com 44 spectral fingerprints 44 Michael Flasar 44 Durado Brooks 44 Sande Bashaija email 44 Finn Danielsen 44 baryon 44 Planck satellite 44 Cosmic ray 44 inhabitable planets 44 Wick Haxton 44 cosmological observations 44 Hubble Ultra 44 accretion disks 44 Oort cloud 44 Jay Famiglietti 44 Ehud Shapiro 44 backscattered 44 KBOs 44 protons collide 44 galactic mergers 44 Gerhard Schwehm 44 Faridah Kulabako email 44 Eric Chivian 44 Saturn Enceladus 44 Jupiter moon Io 44 NEAs 44 Garrick Bethell 44 coronal loops 44 armillary sphere 44 star Beta Pictoris 44 Martin Tomasko 44 Christophe Sotin 44 Johannes Lehmann 44 Cancri e 44 Al Subai 44 Zarnecki 44 SCIAMACHY 44 MPIfR 44 Wolszczan 44 Postberg 44 ray Space Telescope 44 molecule buckminsterfullerene 44 NCEAS 44 intracluster 44 comets asteroids 44 Otto Bliesner 44 asteroseismology 44 Felice Frankel 44 Isabella Velicogna 44 J Craig Venter 44 Beichman 44 Kevin Niswender 44 Kounaves 44 Cryospheric Sciences Branch 44 Leonard Krishtalka 44 Angelika Brandt 44 carbonaceous chondrites 44 elongated orbits 44 gravitational lensing 44 Corinne Le Quere 44 CoRoT 9b 44 De Pontieu 44 sized planets orbiting 44 millisecond pulsar 44 Qiang Fu 44 Le Quéré 44 quantum oscillations 44 cosmic particles 44 NOAO 44 Hakan Svedhem 44 crustal thickness 44 Joshua Schier 44 Gisela Winckler 44 Tamas Horvath 44 micro meteorites 44 Planetary Fourier Spectrometer PFS 44 interstellar cloud 44 Ewan Birney 44 Ohmoto 44 Fomalhaut b 44 retrograde orbit 44 neutral mass spectrometer 44 Bok globules 44 icy moons 44 Aiguo Dai 44 RS Ophiuchi 44 Haymet 44 binary asteroids 44 silicate dust 44 type 1a supernovae 44 supersymmetric 44 subatomic 44 Fritjof Capra 44 cosmic ray flux 44 Yvonne Linney 44 infrared spectrometers 44 Neukum 44 submicrometer 44 Doppler shifts 44 faintly visible 44 Kui Kinyanjui email 44 exosphere 44 Stassun 44 Mark Boslough 44 Comet Encke 44 Kuchner 44 Carl Pilcher 44 EPOXI mission 44 Bonanos 44 Bousso 44 Natalie Batalha 44 Bernhard Fleck 44 Harvard Smithsonian CfA 43 Helix nebula 43 ESA Integral 43 nicknamed Xena 43 Einstein relativity theory 43 diffracted 43 Extrasolar planets 43 orbiting Chandra 43 distant galaxies 43 Massimo Napolitano 43 COROT 7b 43 G#.# +#.# 43 Giovanni Picardi 43 neutrino oscillation 43 Persis Drell 43 redshift 43 Geminga 43 protoplanetary disks 43 Detlef Weigel 43 Eran Segal 43 Erik Seiffert 43 Saturn magnetosphere 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topological insulators 42 Giuseppe Piccioni 42 ROSAT 42 HiRISE camera aboard 42 Syun Ichi Akasofu 42 Exoplanet 42 Freie Universitaet Berlin 42 Comet Machholz 42 Volker Liebig 42 Son Nghiem 42 Robert Vrijenhoek 42 Pete Vukusic 42 Earthlike planets 42 Innocent Ndawula email 42 micrometer scale 42 Shamay Tsoory 42 protoplanet 42 crystalline silicates 42 Coel Hellier 42 Spencer Weart 42 clumpiness 42 Bill Chameides 42 Sigurd Hofmann 42 Professor Hardev Pandha 42 John Zarnecki 42 Dr. Daniel Geschwind 42 Victor Velculescu MD Ph.D. 42 Stephen Brusatte 42 Wilkinson Microwave Anisotropy Probe 42 AV Narasimha Murthy 42 micrometre sized 42 Dan Buhl Planetarium 42 linearly polarized 42 physicist Max Planck 42 coronagraph 42 Uranus Neptune 42 lichen moss 42 Shriram Ramanathan 42 KIMANI email 42 Cassini flyby 42 National Astronomical Observatory 42 metallicity 42 cosmic microwave background 42 Jakosky 42 Crab pulsar 42 supermassive 42 Dolores Piperno 42 Charon Pluto 42 microscopic 42 e MERLIN 42 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