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(Click for frequent words.) 60 Adam Riess 57 Andrea Ghez 57 Ed Weiler NASA 57 Mary Voytek 56 Lawrence Krauss 56 Ray Villard 55 Ed Weiler 55 Neil Gehrels 55 Nasser Peyghambarian 55 galaxy formation 54 Deep Impact Principal Investigator 54 Bruce Jakosky 54 Kailash Sahu 54 Sara Seager 54 Richard Mushotzky 54 Richard Berendzen 54 Bruce Margon 54 Dean Pesnell 53 rocky extrasolar planet 53 Michael A'Hearn 53 Jonathan Lunine 53 SN #A 53 Geza Gyuk 53 Guhathakurta 53 Timothy Spahr 53 Rich Zurek 53 Marcus du Sautoy 53 Gravitational lensing 53 Maria Zuber 53 renowned cosmologist 53 cosmological observations 52 Astrophysicists 52 planetary astronomy 52 Madhulika Guhathakurta 52 Carolyn Porco 52 Krimigis 52 Phil Plait 52 Donald Yeomans 52 Eric Becklin 52 Avishay Gal Yam 52 Rathnasree 52 Jakosky 52 Institute STScI 52 exoplanetary 52 Richard Binzel 52 Grammier 52 Lee Smolin 52 Mandushev 51 Giovanni Cassini 51 Goldilocks planet 51 Neil DeGrasse Tyson 51 galactic cosmic rays 51 Brother Guy Consolmagno 51 Neil deGrasse Tyson 51 astrophysicists 51 NASA Far Ultraviolet 51 Lars Hernquist 51 Gaensler 51 gamma ray burst 51 Dalcanton 51 Jon Giorgini 51 extrasolar 51 astronomers 51 visit http:/saturn.jpl.nasa.gov 51 Vourlidas 51 Astrophysical 51 Pieter van Dokkum 51 Seth Shostak 51 Jeffrey Kargel 51 Corot 7b 51 fainter objects 51 Albert Laszlo Barabasi 50 Richard Zurek 50 Cosmic Microwave Background 50 gamma ray bursts 50 Kepler Mission 50 Dan Werthimer 50 Bonnie Buratti 50 cosmologists 50 astronomy 50 Peter Jenniskens 50 Fritz Zwicky 50 Sasselov 50 ESA Integral 50 Catherine Cesarsky 50 GRBs 50 Konacki 50 interplanetary spacecraft 50 Joel Primack 50 Wolfgang Brandner 50 NASA Fermi Gamma 50 Sergio Bertolucci 50 extrasolar planetary systems 50 distant supernovae 50 Pasachoff 50 Alfred McEwen 50 director Charles Elachi 50 Alycia Weinberger 50 Galaxy Evolution 50 anthropic principle 50 Hubble Telescope 50 Hubble Space Telescope 50 GRB #B 50 Crab Pulsar 50 Neil Gehrels Swift 50 superstrings 50 Charles Elachi 50 ray Space Telescope 50 planet Uranus 49 Martin Guthold 49 Jack Horkheimer 49 Alex Filippenko 49 Comet Hartley 2 49 Jeffrey Hangst 49 Carl Friedrich Gauss 49 astrophysical 49 cosmic phenomena 49 celestial mechanics 49 cosmologist 49 Charles Beichman 49 India Science Popularization 49 substorms 49 Max Tegmark 49 Hubble observations 49 Pierre Simon Laplace 49 Ray Jayawardhana 49 Dante Lauretta 49 extrasolar worlds 49 Science Popularisation Association 49 ESA XMM Newton 49 supersymmetry 49 occultations 49 William Borucki 49 Zarnecki 49 astronomer 49 Earthlike planet 49 Mark Changizi 49 Owen Gingerich 49 Hubble telescope 49 Laser Interferometer Gravitational Wave 49 astronomical objects 49 Michio Kaku 49 Exoplanets 49 MIT planetary scientist 49 David Wettergreen 49 Nasa Kepler 49 planetary science 49 Cosmological 49 Charles Bailyn 49 Helix Nebula 49 Kounaves 49 Fuk Li Mars 49 astronomical observations 49 Jay Melosh 49 astrophysical phenomena 49 supersymmetric particles 48 N. Rathnasree 48 infrared astronomy 48 Carey Lisse 48 David Southwood ESA 48 Exoplanet 48 Helix nebula 48 Solar TErrestrial RElations Observatory 48 gravitational wave 48 Oort Cloud 48 Fermi Telescope 48 Lunine 48 Hakan Svedhem 48 Lika Guhathakurta 48 Crab Nebula 48 Reinhard Genzel 48 icy moons 48 inhabitable planets 48 Sushil Atreya 48 antimatter particles 48 Mewaldt 48 STScI 48 Eta Carinae 48 Christopher Chyba 48 Andrew Fraknoi 48 distant galaxies 48 astrobiology scientist 48 Earth magnetotail 48 Greg Delory 48 asteroid collisions 48 Kip Thorne 48 MAVEN 48 Jayant Narlikar 48 Maya Tolstoy 48 Rolf Kudritzki 48 Gamma ray bursts 48 axions 48 cryovolcanism 48 Wallace Broecker 48 Louise Prockter 48 Cosmologists 48 superstring theory 48 Type Ia supernovas 48 particle astrophysics 48 planets comets 48 XMM Newton 48 Fermi telescope 48 Wolszczan 48 Phil Schewe spokesman 48 Jean Pierre Lebreton 48 Fran Bagenal 48 orbiting telescope 48 Drake Deming 48 Gliese #g 48 observational astronomy 48 journal Meteoritics 48 Cosmology 48 Fermi Paradox 48 Schawinski 48 COROT 48 Cassini Huygens 48 ESO VLT 48 Hubble 48 planetary Transits 48 Fomalhaut b 48 intrinsic brightness 48 university Zanvyl Krieger 48 orbiting Hubble telescope 48 brightest supernova 48 Ralph McNutt 48 theoretical astrophysics 48 polarimetry 48 Ron O'Dor 48 retrograde orbits 48 Gerhard Schwehm 48 Nial Tanvir 48 boyhood aspiration 48 planetary scientist 48 Kepler #b 48 Ramesh Raskar 47 Yoel Fink 47 Venusian atmosphere 47 Pawan Sinha 47 Saturn moons 47 Nousek 47 Waleed Abdalati NASA 47 astrobiological 47 Heterodyne Instrument 47 Particle physics 47 matter antimatter asymmetry 47 Heisenberg Uncertainty Principle 47 Steven Cummer 47 undiscovered particle 47 Space Telescope 47 Pluto Charon 47 detect gravitational waves 47 Popular Astronomy 47 optical interferometry 47 Stelios Kazantzidis 47 Nikku Madhusudhan 47 astrophysicist 47 Carlos Frenk 47 Manchester Jodrell Bank 47 Nathan Kaib 47 Bohdan Paczynski 47 Wilkinson Microwave Probe 47 Arkani Hamed 47 coronal heating 47 earthshine 47 Gliese #c 47 Robert Jedicke 47 Our Undiscovered Universe 47 reionization 47 KIPAC 47 SUSY 47 Michael Flasar 47 supervolcanoes 47 Franck Marchis 47 PALCA 47 Uranus Neptune 47 observable universe 47 CERN LHC 47 Ellen Prager 47 Cassini imaging 47 Brera Observatory 47 Higgs bosons 47 RXTE 47 GJ #b [001] 47 infrared telescopes 47 Huygens mission 47 Solar Dynamics Observatory 47 astrophysical sciences 47 Invisibility cloak 47 Evolution Explorer 47 lunar perigee 47 Einsteinian 47 Interior Laboratory GRAIL 47 Higgs singlet 47 extrasolar planet 47 distant galaxy 47 Fermi LAT 47 Mars Squyres 47 A'Hearn 47 Pan STARRS 47 Director Charles Elachi 47 Shri Kulkarni 47 Mössbauer 47 William Borucki Kepler 47 spatial dimensions 47 Alexander Kashlinsky 47 Galilean moons 47 celestial object 47 cosmic cannibal 47 observable phenomena 47 Tom Krimigis 47 Kuiper belt objects 47 Omega Centauri 47 Martin Tomasko 47 OSIRIS REx 47 Gravitational waves 47 Hany Farid 47 Jonathan Overpeck climate 47 Wilkinson Microwave Anisotropy Probe 47 Epsilon Aurigae 47 Butterfly Nebula 47 Earthlike 47 orbiting Hubble Space Telescope 47 Larry Mastin USGS 47 Roddam Narasimha 47 Sibeck 47 Bojowald 47 Libra constellation Vogt 47 magnetars 47 Giovanni Picardi 47 Subrahmanyan Chandrasekhar 47 Neils Bohr 47 miscellaneous ramblings 47 binds particles 47 exoplanets orbiting 47 highly elliptical orbits 47 Spectroscopic Explorer 47 Nima Arkani Hamed 47 STEREO spacecraft 47 Fundamental Physics 47 superfluids 47 Hubble Space Telescope HST 46 Richard Binzel professor 46 Einstein theories 46 Werthimer 46 Dr. Michio Kaku 46 extrasolar planets orbiting 46 sterile neutrino 46 HM Cancri 46 Voorwerp 46 WASP #b 46 extrasolar planets 46 LHC experiments 46 Coma Cluster 46 habitable planets 46 protons collide 46 Compact Reconnaissance Imaging Spectrometer 46 sextillion stars 46 EPOCh 46 meteoroid 46 astrophysics 46 gamma ray observatory 46 Jenniskens 46 universe Kaku 46 comets meteors 46 Halton Arp 46 Kepler Space Telescope 46 SN #gy 46 Alicia Soderberg 46 Duari 46 attosecond 46 Bill Chameides 46 occultation 46 Colin Pillinger 46 Steins asteroid 46 ESO PR 46 NASA THEMIS 46 Gael Chauvin 46 Priyamvada Natarajan 46 astrobiologists 46 Astrophysics Cambridge Mass. 46 http:/www.nasa.gov/cassini 46 Karl Menten 46 Andromeda Galaxy 46 Halzen 46 Jack Lissauer 46 Kunches 46 Comet Elenin 46 VISTA telescope 46 Bill Borucki Kepler 46 Andromeda galaxy 46 Hubble orbits 46 gravitational lens 46 particle colliders 46 HiRISE camera 46 Gliese #d 46 SpaceWeather.com 46 asteroids comets 46 planetary astronomer 46 astrometry 46 prebiotic chemistry 46 Astronomically 46 CMB radiation 46 comet nucleus 46 supernovae explode 46 Higgs particle 46 potentially habitable 46 outer planets 46 Astronomy buffs 46 Uwe Bergmann 46 planetary alignments 46 Larry Soderblom 46 Ellen Stofan 46 Maciej Konacki 46 Kurt Godel 46 gravitational radiation 46 Fundamental Concepts 46 PSR B# +# 46 cosmological theories 46 Sromovsky 46 Comet Holmes 46 Extrasolar 46 cosmological distances 46 celestial objects 46 Professor Geim 46 Bernhard Fleck 46 Natalie Batalha 46 Cosmic Microwave Background CMB 46 FORCAST 46 habitable worlds 46 Comet Hartley 46 magnetar 46 Planck satellite 46 interstellar cloud 46 Meteoritics 46 planetary nebulae 46 Quantum Physics 46 spectroscopically 46 RHESSI 46 Vassilis Angelopoulos 46 Jim Kasting 46 Henrik Svensmark 46 Alfven waves 46 orbital mechanics 46 Meg Urry 46 aurorae 46 ultraviolet wavelengths 46 habitable planet 46 Paul Spudis 46 orbiting Chandra 46 type 1a supernovae 46 quantum chromodynamics QCD 46 Robert Vrijenhoek 46 neutralinos 46 Ralf Gellert 46 Laura Grego 46 exobiology 46 neutrino oscillation 46 Jerome Drexler 46 Neuroeconomics 46 Burst Alert 46 Christof Koch 46 Virgo Cluster 46 Relations Observatory STEREO 46 Higgs Boson particle 46 exo planets 46 planemos 46 Saturn Cassini 46 Laser Interferometer Space 46 supersymmetric 46 Robotic Exploration 46 Extrasolar Planet Search 46 Enrico Fermi Institute 46 optical wavelengths 45 Mars Phobos 45 orbiting gamma ray 45 Jonathan Lunine Cassini 45 Firouz Naderi 45 TrES 4 45 Einstein relativity theory 45 Rolf Dieter Heuer 45 VIRTIS 45 hellish firewise 45 baryon 45 extragalactic 45 Wolfgang Ketterle 45 Planetary Transits 45 planets atmospheres 45 anthropic 45 ChemCam 45 Plait 45 Astronomical Society AAS 45 Explorer WISE 45 Bruce Banerdt 45 filamentary structure 45 HD#b 45 retrograde orbit 45 quantum optics 45 NASA Cassini 45 John Grotzinger 45 WISE infrared 45 Chris Lintott 45 submillimetre wavelengths 45 Saturn moon Iapetus 45 Daniel Kleppner 45 Oort cloud 45 Son Nghiem 45 Earth magnetosphere 45 Earths orbiting 45 Avi Loeb 45 Astrological lore 45 WFC3 45 blazar 45 quantum phenomena 45 quantum entanglement 45 photosphere 45 AB Aurigae 45 Roger Launius 45 Tegmark 45 astrophysical objects 45 Saul Perlmutter 45 Guillermo Haro 45 Kuiper Belt Objects 45 God Particle 45 Kevin Schawinski 45 Saturnian moon Titan 45 Infrared Array Camera 45 ESA Rosetta 45 distant quasars 45 NASA WMAP 45 Ken Edgett 45 LOFAR 45 Prof. Hawking 45 cosmology 45 cosmological parameters 45 Tevatron experiments 45 Gliese #G 45 heliophysics 45 Mars Color Imager 45 X ray observatory 45 Bernard Foing 45 Ed Weiler associate 45 X ray telescopes 45 Dauphas 45 GLAST telescope 45 Mars CRISM 45 CB Devgun 45 millimeter wavelengths 45 technological singularity 45 planets 45 Fred Hoyle 45 hydrostatic equilibrium 45 moons Phobos 45 neutrino 45 Gondolo 45 outermost planets 45 Descent Imager Spectral Radiometer 45 Anisotropy Probe WMAP 45 SOHO spacecraft 45 LADEE 45 TGFs 45 Dennis Overbye 45 Eric Feigelson 45 Computational Relativity 45 noctilucent clouds 45 NASA Wilkinson Microwave 45 Tod Strohmayer 45 Dave Reneke 45 solar corona 45 Einstein equations 45 Observatory SDO 45 Aryabhatta 45 Grillmair 45 INTEGRAL satellite 45 nucleosynthesis 45 Harvard Smithsonian Astrophysical 45 Michael Merzenich 45 cosmic 45 planets constellations 45 hair's width beams 45 Bette Otto Bliesner 45 Francesco Stellacci 45 cosmic collisions 45 Space Telescope Science 45 Peter Woit 45 cosmological 45 Richard Feynman 45 novas 45 Emily Lakdawalla 45 galactic mergers 45 Adaptive optics 45 magnetic reconnection 45 SINFONI 45 Higgs Boson 45 NASA Heliophysics 45 Biomedical Magnetic Resonance 45 Volker Liebig 45 nebular 45 Leonard Shlain 45 Gamma ray burst 45 MG J# +# 45 cosmic magnifying glass 45 Chandra Wickramasinghe 45 Jupiter moon Io 45 extraterrestrial civilizations 45 Eyal Ophir 45 cosmic rays 45 Bad Astronomy 45 Steven Strogatz 45 Quantum Mechanics 45 Quantum entanglement 45 galaxies nebulae 45 axion 45 scientist Carolyn Porco 45 Allen Paulos 45 quantum astrophysicist 45 Astronautical Science 45 Gnedin 45 Syamsu Rizal 45 lunar eclipses 45 Awschalom 45 Ramamurti Shankar 45 afterglows 45 submillimetre 45 Cosmic Evolution 45 Gal Yam 45 Perseus Cluster 45 submillimeter wavelength 45 Quadrantid meteor shower 45 Global Surveyor spacecraft 45 CoRoT 9b 45 subatomic 45 Massimo Pigliucci 45 UDFy # 45 Vakoch 45 Interstellar Boundary Explorer 45 Cat Paw Nebula 45 Kuiper Belt Object 45 Toutatis 45 Harvard exoplanet hunter 45 eclipsing binary 44 stellar occultations 44 impeach USADA 44 outer corona 44 Raymond Kurzweil 44 relativity theory 44 e MERLIN 44 magnetospheric imaging instrument 44 Colloidal Emulsions 44 Astrophysics MOA 44 Bug Nebula 44 neutralino 44 gamma ray bursts GRBs 44 NASA JPL Space 44 Trey Ideker 44 Geza Vermes 44 Hossam Haick 44 Hydrospheric 44 Earthlike planets 44 Arches Cluster 44 novae 44 Astronomy 44 UVOT 44 neutrino physics 44 gravitational lensing 44 manager Gerhard Schwehm 44 Boris Shustov 44 Maxwell equations 44 astrobiology 44 SN Ia 44 DIXI 44 Saturn Enceladus 44 MicroFUN 44 Von Frese 44 optical coherence 44 RRATs 44 Rathnashree 44 SuperMoon 44 Arden Bement 44 Andrea Accomazzo 44 Antennae Galaxies 44 spectroscopic observations 44 planetary surfaces 44 galaxy M# [001] 44 humble pseudonymous surgeon 44 Ghassem Asrar 44 HD #b [002] 44 Frank Wilczek 44 unaided eye 44 Mastcam 44 Advanced LIGO 44 planetary 44 Killer Asteroids 44 interstellar dust 44 gamma ray emission 44 planetary conjunctions 44 subatomic physics 44 imaging spectrometer 44 Bikash Sinha 44 journal Acta Astronautica 44 NASA Hubble Space 44 Carl Pilcher 44 Io Europa 44 RY Sagittarii 44 magnetospheric 44 particle physicist 44 COROT 7b 44 RQ# 44 submillimeter wavelengths 44 XMM Newton X ray 44 KamLAND 44 quantum mechanics 44 Martian microbes exist 44 quantum chromodynamics 44 paleoclimatology 44 gaseous planet 44 Cassini flyby 44 supergiant star 44 colliding asteroids 44 gravitational waves 44 OGLE TR #b 44 superconductivity arises 44 NASAs 44 Schrodinger cat 44 physicists 44 Venusian 44 barred spiral galaxy 44 SETI Search 44 extrasolar planetary 44 exo planet 44 planets orbiting distant 44 Phil DeCola 44 MINOS 44 SN#A 44 professor Arthur Zajonc 44 Steven Schier Carleton 44 Extrasolar Planets 44 Nehru Planetarium 44 Fermi paradox 44 FLATOW 44 # Apophis 44 high temperature superconductivity 44 smallest exoplanets 44 Cosmic Collisions 44 dimming starlight 44 boson 44 Dr. Daniel Geschwind 44 Attosecond 44 Extraterrestrial Life 44 George Djorgovski 44 planets circling 44 neutrinos 44 celestial phenomena 44 NASA Lunar Reconnaissance 44 X ray wavelengths 44 constellations planets 44 HiRISE camera aboard 44 Gary Ruvkun 44 Educators SPACE 44 exoplanet 44 starburst galaxies 44 lensing galaxy 44 distant supernovas 44 Dikpati 44 Spudis 44 renowned astrophysicist 44 Terrestrial Planet Finder TPF 44 Mercury magnetosphere 44 Foing 44 Alfvén waves 44 Minnesota Starwatch 44 IYA# 44 Rick Grammier Deep Impact 44 Relativistic 44 GLAST 44 Mark Boslough 44 Technological Singularity 44 Emilio Bizzi 44 Mark Serreze senior 44 Telescope BAT 44 Nasa Goddard Space 44 inner Oort Cloud 44 SEGUE 44 Terrestrial Planet Finder 44 gaseous planets 44 Manned missions 44 Kew Jodrell Laboratory 44 planet Gliese #g 44 Type Ia supernova 44 celestial phenomenon 44 proto galaxies 44 Endel Tulving 44 subatomic scale 44 Movellan 44 Gell Mann 44 Jurgen Rehm 44 Leonard Susskind 44 Bob Balfanz researcher 44 Johannes Kepler 44 RS Ophiuchi 44 celestial sphere 44 Chu Nobel laureate 44 orbiting 44 High Resolution Imaging 44 Paul Dirac 44 Cepheid variables 44 dynamical evolution 44 planetary geologist 44 Geminga 44 foreground galaxy 44 Context Camera 44 Apophis asteroid 44 worthwhile Schwehm 44 http:/saturn.jpl.nasa.gov 44 Venus transits 44 Dariusz Leszczynski 44 orbital resonance 44 elliptical galaxies 44 moons circling 44 Katzman Automatic 44 proton decay 44 Cassini ultraviolet 44 Advanced Computational 44 Cassini Huygens spacecraft 44 Nergis Mavalvala 44 Jamie Elsila 44 James Kakalios 44 Ariel Anbar 44 Richard Gilbrech 44 Kenneth Suslick 44 spacetime 44 Fermi Gamma ray 44 quantum physicists 44 ESA Cluster 44 Gamma rays 44 comet Lulin 44 gravitational lenses 44 Marc Rayman 44 Martin Haehnelt 44 Einar Kjartansson geophysicist 44 alien civilizations 44 MMT Observatory 44 Consolmagno 43 physics astronomy 43 astronomical phenomena 43 Samuel Wickline 43 Yarkovsky effect 43 Hawking radiation 43 Charles Seife 43 Makiko Sato 43 Climate Experiment GRACE 43 antineutrinos 43 Astronomers 43 planets orbiting stars 43 Computational Cosmology 43 Science Experiment HiRISE 43 celestial observations 43 Djorgovski 43 Qiang Fu 43 Fred Espenak 43 Helioseismic 43 planetary nebula 43 Ted Scambos 43 stellar seismology 43 planetary orbits 43 quantum physics 43 extraterrestial 43 geoneutrinos 43 Atmospheric Oceanic 43 moonquakes 43 protoplanetary 43 SMOS mission 43 redshifts 43 auroral displays 43 Wide Angle Search 43 Grunsfeld 43 quasars 43 millisecond pulsar 43 Carnegie Observatories 43 neutrino mass 43 Geminids 43 Kazantzidis 43 planet orbiting 43 Wick Haxton 43 orbiting Saturn 43 Orion Nebula 43 Percival Lowell 43 geochemists 43 Dirk Schulze Makuch 43 John Zarnecki 43 Convection Rotation 43 Neukum 43 Ira Flatow 43 Cepheids 43 Kashlinsky 43 Saturn rings 43 nanomechanics 43 spectroscopic measurements 43 Mr. FALLOWS 43 microbial ecosystems 43 Sigurd Hofmann 43 redshift 43 cosmos 43 Oliver Buchmueller 43 Lynn Margulis 43 Raymond Jeanloz 43 assumed planets circling 43 planetary nebulas 43 National Astronomical Observatory 43 Deep Impact Extended 43 Planetary Physics 43 #P/Churyumov-Gerasimenko 43 Felisa Wolfe Simon 43 climate modellers 43 Rainer Klement 43 missing baryons 43 NASA twin STEREO 43 budging Wheelock told 43 rescuer Dedas 43 Deep Impact eXtended Investigation 43 Lisa Kaltenegger 43 Professor Richard Lindzen 43 Space Physics 43 ESA Herschel 43 origins spectrograph 43 Roger Bilham 43 Margarita Marinova 43 asteroseismology 43 Henize #-# 43 Corot 9b 43 Chris Rapley 43 hypernova 43 galaxy cluster 43 Cancri e 43 supercomputer simulations 43 exoplanets planets outside 43 Ekaterina Dadachova 43 Fincke radioed 43 Kelly Holley Bockelmann 43 Einstein relativity 43 quantum gravity 43 Spergel 43 HARPS spectrograph attached 43 Atmospheric Composition 43 binary quasar 43 ultraluminous galaxy 43 faraway quasars 43 particle physicists 43 Phil Schewe physicist 43 Mullard Space Science 43 Dan Buhl Planetarium 43 Magnetic Imager HMI 43 photometry 43 Michael Blanpied 43 Anthony Remijan 43 planetary missions 43 transiting planets 43 LHCb 43 Planetary 43 Newtonian mechanics 43 vertebrate zoology 43 Squyres Cornell 43 NASA MESSENGER 43 Michael Shermer 43 GALEX 43 Herschel Space Telescope 43 Linda Spilker 43 X ray binaries 43 X ray pulses 43 van Arkel discovery 43 Maskawa 43 CRISM 43 Jacques Laskar 43 Scheeres 43 microworld 43 Douglas Osheroff 43 gravitationally lensed 43 globular star 43 Heliospheric Observatory SOHO 43 cosmic ray astronomy 43 quasar 43 orbiting observatory 43 MARSIS 43 orbital solitude 43 testable hypothesis 43 Michael Studinger 43 Mamajek 43 Linda Elkins Tanton 43 Mars Climate Sounder 43 Huchra 43 Richard Grammier 43 planetary transits 43 Milky Way Galaxy 43 asymptotic freedom 43 comets asteroids 43 Harlow Shapley 43 Ionosphere Sounding 43 Masao Ninomiya 43 Svensmark 43 Bioengineering NIBIB