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(Click for frequent words.) 61 Krimigis 61 P/# A2 60 Vikhlinin 60 Kuiper belt objects 60 Wolszczan 60 distant supernovae 60 Sasselov 59 Kashlinsky 59 HD #b [002] 59 sterile neutrino 59 Andrea Ghez 59 SN#A 58 Evolution Explorer 58 Lunine 58 icy moons 58 Gaensler 58 Wilkinson Microwave Anisotropy Probe 58 Jonathan Lunine 58 Sara Seager 58 Martian meteorites 58 Earthlike planets 58 comet McNaught 58 Cosmic Microwave Background 57 martian meteorites 57 Higgs bosons 57 Corot 7b 57 Saturn rings 57 stellar seismology 57 cosmic microwave radiation 57 Cassini imaging 57 Delta Cephei 57 Storrie Lombardi 57 cosmological theories 57 RS Ophiuchi 57 Saturn aurora 57 Spergel 56 GRBs 56 supersymmetric particles 56 Jenniskens 56 de Pater 56 Carolyn Porco 56 Svensmark 56 gravitational microlensing 56 RHESSI 56 RRATs 56 Kuiper Belt Objects 56 protoplanetary disks 56 Mini TES 56 AB Aurigae 56 GJ #b [001] 56 Pieter van Dokkum 56 Thiemens 56 Crab Pulsar 56 Astrophysics Cambridge Mass. 56 Gehrels 56 Murchison meteorite 56 MiniBooNE 56 astrophysicists 56 filamentary structure 56 intrinsic brightness 56 faint galaxies 55 type Ia supernova 55 earthshine 55 extragalactic 55 HD#b 55 Ferenc Krausz 55 Caltech astronomer 55 Richard Mushotzky 55 SSRL 55 Filippenko 55 Avishay Gal Yam 55 icy comets 55 Comet Halley 55 Erik Asphaug 55 Papovich 55 BP Psc 55 Ellen Stofan 55 axion 55 Makiko Sato 55 extrasolar 55 exoplanetary 55 spiral nebulae 55 blazars 55 Astrophysicists 55 exo planets 55 extrasolar planet 55 planets atmospheres 55 Gmachl 55 magnetar 54 Kazantzidis 54 astronomical objects 54 Ruvkun 54 Kuchner 54 Nikku Madhusudhan 54 Gravitational waves 54 Mamajek 54 Tegmark 54 neutralinos 54 V# Mon 54 AGNs 54 gaseous planet 54 Hubble observations 54 extrasolar planetary systems 54 SNfactory 54 Lars Hernquist 54 lensing galaxy 54 astrobiological 54 Gerard Kuiper 54 binary asteroid 54 magnetars 54 journal Icarus 54 WASP #b 54 Cepheid variables 54 Maunder minimum 54 theoretical astrophysicist 54 CoRoT 7b 54 planetary nebulae 54 distant quasars 54 planetary scientist 54 millisecond pulsars 54 Foing 54 Henize #-# 54 WMAP satellite 54 Dimitar Sasselov 54 protoplanet 54 NASA Far Ultraviolet 54 interstellar clouds 54 SN #C 54 axions 54 comets orbiting 54 geoneutrinos 54 X ray wavelengths 54 Bill Borucki Kepler 53 SIRTF 53 Christopher Chyba 53 Cancri e 53 Kepler Mission 53 George Djorgovski 53 KBOs 53 astrobiologists 53 William Bottke 53 coronal heating 53 XMM Newton observations 53 Epsilon Eridani 53 Earthlike 53 Upsilon Andromedae 53 SDSS II 53 noctilucent clouds 53 type Ia supernovae 53 NASA WMAP 53 graphite whiskers 53 Project Ozma 53 astronomers 53 Kounaves 53 Martian craters 53 astrophysical phenomena 53 galactic cosmic rays 53 Alfven waves 53 Stadermann 53 Stephan Quintet 53 MIT planetary scientist 53 Gal Yam 53 Gnedin 53 Jupiter moon Io 53 X ray observatories 53 optical interferometry 53 Gliese #c 53 Peter Jenniskens 53 Cepheids 53 Sushil Atreya 53 Smithsonian astronomer 53 inhabitable planets 53 supernova remnants 53 ULP cepheids 53 planetary astronomy 53 exoplanets planets 53 SN #A 53 ejecta 53 ultraviolet wavelengths 53 RS Oph 53 moon Enceladus 53 Konacki 53 Paul Spudis 53 Avi Loeb 53 Dwarf galaxies 53 Supernova #A 53 asteroseismology 53 Michael Studinger 53 Triangulum Galaxy 53 thermodynamic calculations 53 Lamont Doherty 53 Voyager spacecraft 53 Dauphas 53 Galilean satellites 53 biosignatures 53 journal Monthly Notices 53 SPICAM 53 Sigurd Hofmann 53 Woese 53 Martian dust 53 rocky extrasolar planet 53 Fermi telescope 53 habitable planets 53 Werthimer 53 afterglows 53 infalling 53 cometary material 53 Mojzsis 53 Adam Riess 53 Hörst 53 Red Rectangle 53 planetary astronomer 52 shadow biosphere 52 Jovian moon 52 Gondolo 52 cosmological distances 52 Niels Bohr Institute 52 Voorwerp 52 clumpiness 52 PSR B# +# 52 Cosmologists 52 Mate Adamkovics 52 COBE 52 Cosmic Background Explorer 52 exoplanetary systems 52 planetary nebulas 52 moons circling 52 Milky Way halo 52 retrograde orbits 52 LOFAR 52 quantum phenomena 52 Type Ia supernovae 52 geochemists 52 ESO VLT 52 Dirk Brockmann 52 Galaxy Evolution 52 protoplanetary disk 52 GALEX 52 interstellar grains 52 Pluto Charon 52 Fritz Zwicky 52 planetary geologist 52 starquakes 52 Richard Binzel 52 comets asteroids 52 Friis Christensen 52 NEAs 52 earthlike planets 52 Dan Werthimer 52 exoplanets orbiting 52 Jedicke 52 moons orbiting Saturn 52 planemos 52 Nima Arkani Hamed 52 GRB #B 52 Dikpati 52 superlens 52 transiting exoplanets 52 Nectocaris 52 Omega Centauri 52 gamma ray emission 52 interstellar dust 52 solar neutrinos 52 cometary dust 52 Climate Experiment GRACE 52 Enceladus 52 X ray afterglow 52 Martian gullies 52 cosmic collisions 52 Gravitational lensing 52 Vakoch 52 Bottke 52 cosmological observations 52 WMAP 52 Antennae Galaxies 52 diffuse aurora 52 Astrophysical 52 Ray Jayawardhana 52 comets 52 electron neutrinos 52 Henrik Svensmark 52 Neil Gehrels 52 KH #D 52 CMB radiation 52 retrograde orbit 52 OGLE TR #b 52 gravitational lensing 52 unmanned probes 52 astronomer 52 Robock 52 Nobel laureate physicist 52 matter antimatter asymmetry 52 TGFs 52 planets circling 52 Meteoritics 52 Gerta Keller 52 Cosmic Microwave Background CMB 52 Gliese #d 52 chondrules 52 Oort Cloud 52 Halton Arp 52 Neils Bohr 52 distant galaxy clusters 52 HM Cancri 52 astrophysical objects 52 anthropic principle 52 distant quasar 52 X ray telescopes 52 Planck satellite 52 Wolfgang Brandner 52 comet nucleus 51 Cassini ultraviolet 51 Tarduno 51 Jupiter moons 51 neutralino 51 NCEAS 51 Observatory LDEO 51 ESA Integral 51 Corot 9b 51 quasars 51 helium atoms 51 NASA Cassini 51 Gamma ray burst 51 KamLAND 51 dwarf galaxies 51 Hipparcos 51 Comet Hale Bopp 51 distant supernovas 51 XMM Newton 51 gravitational lenses 51 Dansgaard 51 GJ #b [002] 51 distant galaxies 51 Saturn moons 51 Anthony Remijan 51 spectroscopic measurements 51 Dalcanton 51 X ray emission 51 airglow 51 submillimeter galaxies 51 Solar TErrestrial RElations Observatory 51 detect gravitational waves 51 Bullet Cluster 51 TrES 4 51 Chicxulub 51 Cassini scientist 51 zodiacal light 51 Gregory Asner 51 moons orbiting 51 Helix Nebula 51 Earthshine 51 NASA ICESat 51 Don Gurnett 51 Martin Tomasko 51 comet 51 ROSAT 51 extrasolar planets 51 Virgo Cluster 51 Huchra 51 proplyds 51 Fomalhaut b 51 HiRISE images 51 Nathan Kaib 51 Astrophysics MOA 51 Beratan 51 optical wavelengths 51 RXTE 51 Nasa Jet Propulsion 51 cosmological models 51 Carey Lisse 51 Nasa Kepler 51 Svedhem 51 cosmic microwave background 51 spectroscope 51 COBE satellite 51 SCP #F# 51 Bug Nebula 51 particle astrophysics 51 antineutrinos 51 Nasa spacecraft 51 gamma ray photons 51 moons Phobos 51 Geminga 51 outer corona 51 active galactic nuclei 51 paleoclimatology 51 Kuiper belt 51 Galileo spacecraft 51 Higgs boson particle 51 Anisotropy Probe WMAP 51 NASA astrobiology 51 Mars Squyres 51 Chladni 51 type 1a supernovae 51 Earthlike planet 51 cognitive neuroscientists 51 Michelson Morley 51 pulsating aurora 51 De Pater 51 supercomputer simulations 51 Arkani Hamed 51 permanently shadowed craters 51 dwarf spheroidal galaxies 51 BP Piscium 51 sterile neutrinos 51 eclipsing binary 51 Marc Kuchner 51 superluminal 51 Franck Marchis 51 Higgs particle 51 accretion disks 51 Einstein theories 51 Heasler 51 Cassini radar 51 planetary magnetospheres 51 Joel Primack 51 reionization 51 Richard Camilli 51 planets asteroids 51 Alfred McEwen 51 Guhathakurta 51 Cepheid variable 51 JDEM 51 Great Observatories 51 planet HD #b 51 X ray observatory 51 Reinhard Genzel 51 MINOS 51 Martin Haehnelt 51 meteoroid 50 Keck telescope 50 magnetospheres 50 supernova remnant 50 Fran Bagenal 50 Bindschadler 50 Spudis 50 gamma ray burst 50 Jakob Vinther 50 Bojowald 50 De Pontieu 50 WIMPs 50 neutrino physics 50 Martian meteorite 50 tholins 50 Trojan asteroids 50 Zolensky 50 Max Tegmark 50 Keck Observatory 50 Chandra Wickramasinghe 50 elongated orbits 50 cryovolcanism 50 Spectroscopic Explorer 50 Lapen 50 neutron spectrometer 50 Dariusz Leszczynski 50 Mandushev 50 Stanford Synchrotron Radiation 50 Lunar Prospector 50 gamma ray observatory 50 quantum chromodynamics 50 exoplanet orbiting 50 Cassini 50 Komossa 50 Rayleigh scattering 50 Jakosky 50 planets orbiting sun 50 HUDF 50 MARSIS radar 50 assumed planets circling 50 coronal loops 50 interstellar dust grains 50 Jean Luc Margot 50 APXS 50 gravitational redshift 50 Saturnian moon 50 Hawking radiation 50 Huygens mission 50 EPOCh 50 astronomer Percival Lowell 50 Beichman 50 radiotelescope 50 distant galaxy 50 hadron 50 Terrestrial Magnetism 50 neurobiologists 50 neutrino detectors 50 Carnegie Institution Geophysical 50 infrared wavelengths 50 millisecond pulsar 50 spectroscopic observations 50 quantum physicists 50 aurorae 50 orbiting Hubble Space Telescope 50 Kailash Sahu 50 Gamma ray bursts 50 NGC# 50 masers 50 theoretical calculations 50 exobiology 50 Fred Hoyle 50 Pääbo 50 Magellanic Stream 50 microlensing events 50 Meridiani 50 Von Frese 50 Budker 50 Maria Zuber 50 comet nuclei 50 UA Lunar 50 inner Oort Cloud 50 mantle plumes 50 particle colliders 50 meteoroid impacts 50 hydroxyl molecules 50 HiRISE image 50 Djorgovski 50 spherules 50 MG J# +# 50 MARSIS 50 Kuiper Belt objects 50 energetic cosmic rays 50 Saturn auroras 50 Nilton Renno 50 submillimeter 50 infalling gas 50 CfA 50 Type Ia supernova 50 polar craters 50 neutrino oscillations 50 Ring Nebula 50 weak gravitational lensing 50 Stassun 50 planetary Transits 50 chemical abundances 50 Cecile Viboud 50 Paytan 50 terrestrial planets 50 kaons 50 GLAST telescope 50 blackbody radiation 50 AERONET 50 ALH# 50 Harlow Shapley 50 Alexander Kashlinsky 50 Cometary 50 SNR #-#.# 50 neutrino oscillation 50 SN #gy 50 Stan Woosley 50 dirty snowballs 50 Alex Filippenko 50 Rainer Klement 50 Ziurys 50 Hubble Space Telescopes 50 Crutzen 50 DISR 50 transiting exoplanet 50 relativity theory 50 cosmic strings 50 radial velocity technique 50 Planetology 50 infrared telescopes 50 gravitational waves 50 Lyman alpha 50 Spitzer infrared spectrograph 50 sparticles 50 EPOXI 50 outer planets 50 exoplanets 50 SeaWiFS 50 ray Space Telescope 50 Markram 50 rotating neutron stars 50 Sejnowski 50 Buesseler 50 protostars 50 extrasolar planets orbiting 50 solar corona 50 pulsar 50 olivine mineral 50 moonlets 50 Type Ia supernovas 50 sunlike star 50 NASA Cosmic Background 50 Stephen Mojzsis 50 Orion nebula 49 Planetary Laboratory 49 Professor Geim 49 Exoplanet 49 Laser Interferometer Gravitational Wave 49 Pasachoff 49 Vunjak Novakovic 49 alien civilizations 49 Aberdeen Oceanlab 49 ESA Cluster 49 CoRoT satellite 49 Eta Carinae 49 Space Physics 49 Sedna 49 Gliese #e 49 Epsilon Aurigae 49 Giovanni Cassini 49 interstellar cloud 49 supersolid 49 Christophe Lovis 49 planets comets 49 Venusian atmosphere 49 Lunar Reconnaissance 49 journal Meteoritics 49 UCO Lick 49 spectroscopically 49 Lee Smolin 49 Higgs singlet 49 Fermi LAT 49 exo planet 49 Harold Levison 49 Hot Jupiters 49 Bonnie Buratti 49 planetary orbits 49 Diviner 49 KIPAC 49 Strogatz 49 Korotev 49 magnetic monopole 49 Mars CRISM 49 polar mesospheric clouds 49 Infrared spectroscopy 49 smallest exoplanet 49 dynamical processes 49 orbited Jupiter 49 celestial object 49 fainter objects 49 Karl Menten 49 magnetite crystals 49 exoplanet atmospheres 49 NASA Jet Propulsion Lab 49 astronomical observations 49 PhysOrg reports 49 ultraviolet imaging spectrograph 49 Radioastronomy 49 composite infrared spectrometer 49 circumstellar disks 49 Harold Urey 49 Tony Wyss Coray 49 Toutatis 49 Saturn Cassini 49 Omega Nebula 49 spectrographic 49 Vassilis Angelopoulos 49 du Sautoy 49 tau neutrino 49 Titan smoggy 49 Computer simulations 49 Pavel Kroupa 49 Sinervo 49 Stellacci 49 zodiacal dust 49 Saturn magnetosphere 49 electron orbits 49 Arecibo Observatory 49 Owen Gingerich 49 NASA Infrared Telescope 49 Alessandro Morbidelli 49 magnetic monopoles 49 Extrasolar planets 49 Fermi Gamma ray 49 Astrophysicist 49 Tycho Brahe 49 Bose Einstein condensates 49 Hamish Pritchard 49 hypervelocity stars 49 Jack Lissauer 49 galactic cores 49 gamma ray flares 49 Trey Ideker 49 Jeffrey Kargel 49 carbonaceous meteorites 49 VLBA observations 49 neutral mass spectrometer 49 polarimetry 49 UDFy # 49 atmospheric aerosols 49 NASA Cassini spacecraft 49 absorption spectra 49 Ken Edgett 49 Larry Soderblom 49 developmental biologist 49 Comet Lulin 49 Cees Dekker 49 Zarnecki 49 surface plasmon polariton 49 planets orbiting distant 49 Jean Pierre Bibring 49 Cotsarelis 49 lightwaves 49 sized planets orbiting 49 Jill Tarter 49 NASA Wilkinson Microwave 49 supermassive 49 physicists 49 Cassini Imaging 49 Percival Lowell 49 Very Large Array 49 planetary geology 49 David Spergel 49 brightest supernova 49 Lake Cheko 49 Pascale Ehrenfreund 49 cometary nucleus 49 Klekociuk 49 HiRISE 49 STEREO spacecraft 49 Microlensing 49 Pleiades cluster 49 observationally 49 Rychard Bouwens 49 Alfvén waves 49 Saturn moon 49 Nicholas Kotov 49 constellation Eridanus 49 dust enshrouded 49 Magellanic Clouds 49 Matthias Mehl 49 Jacques Montplaisir 49 Ari Melnick 49 Eric Steig 49 Observatory astronomer 49 Theoretical physicists 49 atmospheric chemist 49 Suslick 49 Schrödinger cat 49 cosmologists 49 backscattered 49 Saturnian system 49 crystalline silicates 49 globular clusters 49 Melosh 49 galaxy formation 49 HESS telescopes 49 pulsars 49 Joe Veverka 49 INMS 49 planets 49 comet Lulin 49 planets orbits 49 seismograms 49 Ontario Lacus 49 reflection nebula 49 infrared astronomy 49 Hal Levison 49 Comet Machholz 49 orbiting Chandra 49 cosmic phenomena 49 Big Bang cosmology 49 circumstellar 49 Type 1a supernovae 49 comet tail 49 climate modellers 49 ESA Herschel 49 Submillimeter Array 49 Mössbauer 49 lunar meteorites 49 gravitational lens 49 magma ocean 49 Ketterle 49 optical spectra 49 X ray spectrometer 49 Stardust comet 49 cosmic ray 49 superclusters 49 Ryskin 49 redshifts 49 noble gases 49 particle physicist 49 Saturn moon Enceladus 49 hydrogen helium 49 lunar crust 49 antihelium 4 49 super Earths 49 sunlike stars 48 constructal theory 48 Encke gap 48 Kuiper Belt Object 48 Uwe Bergmann 48 Comet Hartley 2 48 MIT postdoctoral researcher 48 Upsilon Andromedae b 48 Gaia Hypothesis 48 galaxy redshift 48 particle detectors 48 Diviner instrument 48 Saturn Enceladus 48 Stickgold 48 meridional flow 48 plasma spectrometer 48 radar interferometry 48 COROT 48 Charles Beichman 48 imaging spectrometer 48 Nasa Goddard Space 48 energetic electrons 48 radioactive nuclei 48 optical atomic clocks 48 NASA Voyager spacecraft 48 infrared ultraviolet 48 Magnetars 48 phlogiston 48 Anthony Colaprete LCROSS 48 physicist Max Planck 48 intracluster 48 Wolf Rayet stars 48 GJ#b 48 moon Europa 48 rocky planets 48 journal Astronomy 48 luminescence dating 48 infrared spectroscopy 48 Hegerl 48 Kew Jodrell Laboratory 48 superstrings 48 George Gamow 48 Spitzer Space Telescope 48 planet Gliese #g 48 strange quark 48 Inez Fung 48 ESO astronomer 48 Tranquada 48 A'Hearn 48 Orion Nebula 48 supernova remnant Cassiopeia 48 Spitzer infrared 48 proton proton collisions 48 Allan Sandage 48 Viking landers 48 Lewis Dartnell 48 subsurface ocean 48 Infrared Thermal Imaging Spectrometer 48 Yun Qian 48 moon Charon 48 quantum particles 48 Cosmic Evolution 48 Bonanos 48 Sky Survey SDSS 48 starburst galaxy 48 Steward Observatory 48 Otto Bliesner 48 luminous galaxies 48 Galilean moons 48 Cassini Huygens 48 meteorite fragments 48 VY Canis Majoris 48 Bok globules 48 Crab Nebula 48 Roukes 48 SUSY 48 twin STEREO spacecraft 48 WHIM 48 Theodor Hänsch 48 Oort cloud 48 stellar occultation 48 melt inclusions 48 spectral fingerprint 48 Heliophysics 48 Eske Willerslev 48 YORP effect 48 Tommaso Treu 48 Emily Lakdawalla 48 Winston Seiler 48 cosmological parameters 48 Descent Imager Spectral Radiometer 48 supervolcanoes 48 Awschalom 48 THEMIS satellites 48 interacting galaxies 48 nightglow 48 photochemistry 48 fluid inclusions 48 GQ Lupi 48 Robin Canup 48 Planetary scientist 48 lunar craters 48 Veil Nebula 48 Prof. Rabani 48 Kepler #b 48 Neil DeGrasse Tyson 48 Triangulum 48 quantum particle 48 Shri Kulkarni 48 lobate scarps 48 habitable worlds 48 X ray pulses 48 Einstein relativity theory 48 gamma rays emitted 48 ESO telescopes 48 microlensing 48 extraterrestrial civilizations 48 CDMS experiment 48 Cosmic Background Explorer COBE 48 trans Neptunian objects 48 fractal patterns 48 moonquakes 48 lunar equator 48 nebular 48 ULIRGs 48 Cassini Regio 48 VIRTIS 48 KT boundary 48 outermost planets 48 NASA Chandra 48 dynamical evolution 48 Heymsfield 48 Helix nebula 48 Paquay 48 transiting planet 48 Composite Infrared Spectrometer 48 supernovas 48 microbialites 48 Planetary Science Institute 48 supersymmetric 48 blackbody 48 Bernard Foing 48 Gliese #g 48 optical telescopes 48 NOAA Geophysical Fluid 48 UKIRT 48 Pikaard 48 J# +# [002] 48 wave particle duality 48 Cosmic rays 48 vibrating strings 48 Michael Flasar 48 Bert Vogelstein 48 supergiant stars 48 UA Steward Observatory 48 Walter Arabasz 48 Saul Perlmutter 48 Kurt Retherford 48 brown dwarfs 48 Pancam 48 Joan Lappe 48 topological insulator 48 phyllosilicates 48 ESA Planck 48 cosmic rays 48 Orbiter LRO 48 JILA 48 Quadrantids 48 NASA Interstellar Boundary 48 Drake Equation 48 primitive meteorites 48 Samuel Oschin Telescope 48 protoplanetary 48 gamma ray bursts 48 Geochemists 48 Wysession 48 starburst galaxies 48 extrasolar planet HD #b 48 spectral fingerprints 48 Squyres Cornell 48 Leslie Orgel 48 transiting planets 48 topological insulators 48 Gregory Benford 48 hot Jupiters 48 galactic mergers 48 Keck Telescope 48 Roland Burgmann 48 Volker Bromm 48 gravitational wave 48 Opportunity rover 48 undiscovered particle 48 tau neutrinos 48 gamma ray astronomy 48 Veizer 48 AAVSO 48 stony meteorite 48 planet WASP #b 48 Timothy Spahr 48 GRB #A 48 Earth ionosphere 48 gaseous planets 48 scientific journal Proceedings 48 UVOT 48 cosmic ray flux 48 Pakrasi 48 moon Mab 48 ESA ASI 48 Steven Cummer 48 radial velocity 48 Compact Reconnaissance Imaging Spectrometer 48 Kawaler 48 Peony nebula star 48 submillimeter wavelengths 48 vertebrate embryos 48 sulfur isotope 48 Lyot 48 subatomic particle 48 Carnegie Observatories 48 martian rocks