Related by context. All words. (Click for frequent words.) 61 Rick Grammier Deep Impact 61 Don Yeomans 61 Jean Pierre Lebreton 60 Gerhard Schwehm 59 Ed Weiler 58 Ed Weiler NASA 58 Chuck Dovale 56 Waleed Abdalati 55 David Southwood ESA 55 Earth Object 55 Maria Zuber 55 Jean Pierre Lebreton ESA 55 gaseous planet 54 Charles Elachi 54 William Borucki 54 Peter Eisenhardt 54 James Fanson 53 Chikai Ohazama Google 53 Corot 7b 53 John Callas rover 53 Earthlike planet 52 N. Rathnasree 52 scientist Anthony Colaprete 52 Marc Rayman 52 Kepler 9c 52 Bramley Murton 52 Mario Livio 52 Paul Spudis 52 Richard Grammier 51 Oort Cloud 51 Mandushev 51 Grammier 51 Carolyn Porco 51 J. McComas IBEX 51 Scott Kardel 51 Mars Squyres 51 Earth asteroids 51 Dan Werthimer 51 Bill Gerstenmaier associate 51 William Irace 51 Bill Patzert climatologist 50 Geza Gyuk 50 Steve Squyres 50 Rick Grammier 50 Wolszczan 50 Gliese #c 50 Colaprete 50 Jennifer Heldmann 50 Jake Lowenstern 50 Bill Borucki Kepler 50 Sergio Bertolucci 50 Mike Suffredini NASA 50 Carolyn Driedger 50 Lunine 50 Jonathan Lunine 50 Junichiro Kawaguchi 49 hydrologist Carolyn Driedger 49 William Borucki Kepler 49 Dean Pesnell 49 Fomalhaut b 49 Charles Beichman 49 Triyani 49 icy moons 49 Mary Lou Zoback 49 Larry Soderblom 49 Peter Theisinger 49 Bill Readdy 49 lunar perigee 49 Bruce Jakosky 49 Charlie Precourt 49 afterglows linger 49 Bill Readdy NASA 49 Konacki 49 Rathnasree 49 Michael Kostelnik 49 Stephan Guenther 49 Bob Ess 49 aphelion 49 A'Hearn 49 Don Sweetnam 49 unaided eye 49 SIRTF 49 Gerasimos Papadopoulos 49 AmSouth Select Equity 49 Omar Baez 49 Dan Dzurisin 49 Craig Cooning vice 49 Gaensler 49 Syahnan 49 perigee 49 Svedhem 48 Preston Burch 48 Bernard Foing 48 Kirk Shireman 48 Carl Pilcher 48 Valles Marineris 48 Upsilon Andromedae b 48 Jim Kauahikaua 48 Michael A'Hearn 48 planets Uranus 48 Jim Corgel general 48 extrasolar 48 Jane Ferrigno 48 Ken Hudnut 48 Earthlike 48 Astrological lore 48 Venusian atmosphere 48 Espenak 48 moons Phobos 48 star Proxima Centauri 48 Minoru Shioiri 48 asteroids comets 48 Kepler #b 48 Jane Lubchenco NOAA 48 Upsilon Andromedae 48 Mark Serreze 48 Huygens mission 48 moon Ganymede 48 Ratdomopurbo 48 potentially habitable planets 48 shadowy craters 48 Mike Leinbach 48 Jill Tarter 47 Extrasolar planets 47 Roger Launius 47 WASP #b 47 Simonetta Di Pipo 47 Kuiper Belt Object 47 moons orbiting 47 Alfred McEwen 47 planets circling stars 47 Andy Monshaw general 47 Fuk Li Mars 47 Sara Seager 47 Drake Deming 47 Berinstain 47 Chuck Dovale launch 47 habitable planet 47 Reinhard Genzel 47 Kuiper Belt Objects 47 smallest exoplanet 47 planets orbiting sun 47 # Apophis 47 Andrea Accomazzo 47 Abdalati 47 Rich Zurek 47 Sasselov 47 Jenniskens 47 Oort cloud 47 Ralph McNutt 47 Cryospheric Sciences Branch 47 Jeffrey Plaut 47 scientist Colin Pillinger 47 Peter Frenzen monument 47 Linda Spilker 47 forecaster Helen Chivers 47 Spudis 47 #P/Churyumov-Gerasimenko 47 Quadrantids 47 Saturn Cassini 47 super perigee moon 47 Mary Voytek 47 Krimigis 47 Eric Becklin 47 lunar orbits 47 Don Van Nieuwenhuise 47 Manned missions 47 conclusions NASA Astrobiology 47 Comet Machholz 47 Kunches 47 comets orbiting 47 Earthlike planets 47 Comet Hartley 2 47 Mark Sundlov 47 Kounaves 47 HD#b 47 Charles Elachi director 46 Henry Carmelli 46 Milt Heflin 46 Andrew Fraknoi 46 Jovian moons 46 Umar Rosadi 46 Madhulika Guhathakurta 46 habitable zones 46 Richard Spinrad 46 Mike Leinbach shuttle 46 CoRoT 9b 46 Robert Bindschadler 46 Zeta Ophiuchi 46 telescope Uranus 46 Goldilocks planet 46 Buesseler 46 GJ #b [002] 46 Uranus Neptune 46 Verbiscer 46 Nasa Jet Propulsion 46 smoggy atmosphere 46 Kaoru Mamiya 46 Charles McCreery 46 Barbara Marcin 46 Michael Studinger 46 Libra constellation Vogt 46 Ed Weiler associate 46 Olympus Mons 46 Tom Rosamilia general 46 cryovolcanism 46 Valles Marineris canyon 46 Kuiper belt objects 46 Arches Cluster 46 Steven Squyres 46 Jon Giorgini 46 Steve Vanderburg 46 Pleiades cluster 46 Sal Pinzone general 46 Louise Prockter 46 Proxima Centauri 46 heliopause 46 Neil Gehrels 46 comets asteroids 46 shells pockmarking homes 46 Peter Jenniskens 46 Renato Solidum 46 Anthony Colaprete LCROSS 46 Richard Gilbrech 46 inhabitable planets 46 Toutatis 46 Rathnashree 46 thin crescent moon 46 Emily Lakdawalla 46 Linda Spilker Cassini 46 greatest insect emergences 46 Mount Katla 46 Kuiper belt 46 Pete Theisinger 46 Minoru Shioiri chief 46 Natalie Batalha 46 Beichman 46 Jupiter moon Io 46 USGS Cascades Volcano 46 Richard Binzel 46 produce colorful auroras 46 Bonnie Buratti 46 Steinunn Jakobsdottir geophysicist 46 retrograde orbit 46 extrasolar planet 46 extrasolar planets 45 Dean Preheim Bartel 45 Ghassem Asrar 45 polar craters 45 Lunar eclipses 45 infrared telescopes 45 CoRoT #b 45 Saut Simatupang 45 Bruce Banerdt 45 Budi Waluyo 45 director Charles Elachi 45 Chris Waythomas 45 Dayton Semerjian general 45 asteroid 45 Director Charles Elachi 45 moon Europa 45 Craig Tooley LRO 45 Aeneas Wanner Swiss 45 Richard Zurek 45 Geminid meteors 45 Explosive eruptions 45 Ontario Lacus 45 moon Deimos 45 Perseids 45 orbiting 45 Yoshiyuki Hasegawa 45 Claude Lorenson 45 constellation Pegasus 45 Peter Ewins 45 habitable planets 45 Comet LINEAR 45 Bernie Meyerson 45 Heasler 45 Earth asteroids NEAs 45 comet nucleus 45 occultations 45 highly elliptical orbit 45 Martian equator 45 Milky Way Galaxy 45 Becky Ramotowski 45 Earth Asteroid 45 Isidis Planitia 45 planet HD #b 45 Tom Brocher 45 elliptical orbits 45 Comet Hartley 45 Orionid 45 Kelvin Berryman 45 Kaminski Morrow 45 Michael Flasar 45 Dzurisin 45 Eta Aquarids 45 Chris Rapley 45 Mars Odyssey mission 45 Squyres 45 Colin Pillinger 45 permanently shadowed craters 45 gaseous planets 45 HiRISE 45 Caloris Basin 45 David Wettergreen 45 Anthony Colaprete 45 James Sonneborn wealth 45 LeRoy Cain 45 Geminids 45 moon Enceladus 45 Nousek 45 mesosphere 45 zodiacal light 45 Eta Carinae 45 smallest exoplanets 45 LCROSS 45 Jakosky 45 Michael Blanpied 45 asteroids orbiting 45 Fermi telescope 45 Saturnian system 45 spacewalking specialists 44 TrES 4 44 cosmic cannibal 44 innermost planet 44 Eta Aquarid meteor shower 44 Hans Dieter Sues 44 Kelmoore Strategy Funds 44 Cancri e 44 highly elliptical orbits 44 Julie Van Kleeck 44 Sibeck 44 Subandriyo 44 Kirk Shireman NASA 44 Ron Kurjanowicz 44 Syamsu Rizal 44 Foing 44 Ted Molczan Canadian 44 Samuel Oschin Telescope 44 Matt Friedlein 44 Saturnian moon Titan 44 Hakan Svedhem 44 unmanned probes 44 Cabeus 44 rocky planets 44 Ken Bowersox 44 Patricia Tombaugh 44 Hilia Vavae 44 Seth Shostak 44 geologist Dan Dzurisin 44 distant galaxy 44 substorms 44 asteroidal 44 mu Arae 44 Richard Vondrak 44 Plutoids 44 spherical halo 44 planetary missions 44 Meteor showers 44 zodiacal dust 44 Freighters #-#-# 44 HD #b [002] 44 Victor Sardina 44 cosmic magnifying glass 44 Cabeus crater 44 astronomical objects 44 UDFy # 44 Saturn rings 44 Stephane Udry 44 habitable worlds 44 Lubchenko 44 Venusian surface 44 Jennifer Trosper mission 44 meteoroid 44 transiting planets 44 inner Oort Cloud 44 Comet NEAT 44 Hyakutake 44 fainter objects 44 BN Suresh 44 Rudy Schild 44 northern arctic plains 44 Bindschadler 44 Jean Pierre Lebreton Huygens 44 Orionids 44 Martin Tomasko 44 Saturn moon Enceladus 44 planets orbiting 44 SuperMoon 44 Mark Moede 44 Arlen Huggins 44 hydrostatic equilibrium 44 exoplanets planets outside 44 Earth orbit 44 Robotic Exploration 44 exoplanetary 44 Comet Churyumov Gerasimenko 44 Douglas Biesecker 44 Alan Thirkettle 44 Chodas 44 perigee moon 44 constellation Aquarius 44 Nielsen Gammon 44 Hirjibehedin 44 real interplanetary spaceship 44 Bernhard Fleck 44 Waverly Person 44 Cassini radar 44 asteroids 44 Cassini 44 Joe Veverka 44 Klekociuk 44 COROT 44 William Readdy 44 Volker Liebig 44 Jeffrey Kargel 44 SwRI Space 44 Douglas McCuistion 44 Comet Elenin 44 KBOs 44 Halemaumau 44 Julia Marton Lefèvre 44 ultraviolet wavelengths 44 Jim Corgel 44 spokesman Michael Braukus 44 waning crescent Moon 44 Ric Telford 44 Fauzi seismologist 44 Bill Chameides 44 Leroy Cain 44 Antennae Galaxies 44 Jean Jacques Dordain 44 protoplanet 44 lunar poles 44 orbiting Kepler telescope 44 Jack Lissauer 44 Doug McCuistion 43 navigate autonomously 43 lunar equator 43 Shuttle undocks 43 filamentary structure 43 Geminid shower 43 Mars Uranus Neptune 43 constellation Libra 43 exo planets 43 Ujesh Desai general 43 exoplanet orbiting 43 Martian rovers 43 Nasa spacecraft 43 Carolyn Porco Cassini 43 Saturn Enceladus 43 Firouz Naderi 43 Galilean moons 43 John Brunschwyler 43 Hörst 43 volcano observatory 43 Terra Meridiani 43 Ed Agre 43 Mars moon Phobos 43 Kylie Clem 43 Eric Dinerstein 43 ASTMAX Futures Co. 43 Pluto Eris 43 supervolcanoes 43 planetary scientist 43 brightest supernova 43 Bill Gerstenmaier 43 Rex Geveden 43 Banerdt 43 Mike Suffredini 43 star Spica 43 Scott LaRiche 43 Alex Filippenko 43 Charles Hoge colonel 43 Uranus Jupiter 43 Takashi Yokota 43 Waythomas 43 Epsilon Aurigae 43 Larry Mastin USGS 43 Bill Patzert 43 Lika Guhathakurta 43 spaceweather.com 43 planetary science 43 SpaceWeather.com 43 Icelandic meteorological 43 Michael Zolensky 43 Jim Kauahikaua scientist 43 Dave Kellenbenz 43 HiRISE image 43 Kuiper Belt objects 43 Geminid 43 Kuiper Belt object 43 orbits 43 Pasachoff 43 celestial object 43 Steve Stich 43 Allard Beutel NASA 43 geologist Jennifer Adleman 43 Mohan Adhikari general 43 Syrtis Major 43 Saturnian moon 43 Bryan Lunney 43 Quaoar 43 Saturn moon 43 Cassini imaging 43 Solar TErrestrial RElations Observatory 43 Dan'l Lewin corporate 43 Craig Cooning 43 Neutron stars 43 Dikpati 43 Earth radii 43 Astmax Co Ltd 43 Omar Baddour 43 Ahmad Zakir 43 John Bellini geophysicist 43 Brad Moretz 43 olivine mineral 43 celestial sphere 43 exoplanets planets 43 observable universe 43 Perseus Cluster 43 Vourlidas 43 Saturn moons 43 Kepler Mission 43 RQ# 43 Rosaly Lopes 43 windshield wiper maneuver 43 smoothest flattest spot 43 Derek Hassmann 43 extrasolar planets orbiting 43 GJ#b 43 volcanologist Renato Solidum 43 WISE spacecraft 43 supermoon 43 Avishay Gal Yam 43 Andrea Ghez 43 NASA Victoria Friedensen 43 Spaceguard Survey 43 moon Phobos 43 Kailash Sahu 43 Suharjono 43 KT boundary 43 Louis Stodieck 43 Vastitas Borealis 43 Itokawa 43 Dante Lauretta 43 Gael Chauvin 43 Shinkin Asset Management 43 Diviner instrument 43 ASTMAZ Futures Co. 43 Stephan Quintet 43 William Gerstenmaier 43 SN #gy 43 GA6 43 Woodrow Whitlow 43 Lunar Crater Observation 43 Lunar Reconnaissance Orbiter LRO 43 Cathy Koerner 43 Quadrantid meteor shower 43 Allard Beutel 43 permanently shadowed crater 43 moon Io 43 Dan Buhl Planetarium 43 Cygnus Lyra region 43 Sun Laiyan 43 Bad Astronomy 43 New Horizons spacecraft 43 Chicxulub 43 Cathy Peddie LRO 43 Jared Blumenfeld 43 Alain Berinstain 43 Arjun Makhijani 43 Richard Spinrad assistant 43 Brenda Ekwurzel climate 42 X ray wavelengths 42 LORRI 42 Dave Zanetell 42 Waleed Abdalati NASA 42 John Gedmark 42 Gary Nabel 42 Swift Tuttle 42 planetary transits 42 Elachi 42 volcano caldera 42 William Readdy NASA 42 umbral shadow 42 Erik Asphaug 42 Len Sauers 42 Korotev 42 Cascades Volcano Observatory 42 SMOS mission 42 Bug Nebula 42 Alphonso Diaz 42 planets orbiting stars 42 pericentre 42 Prith Banerjee senior 42 Orionid meteor shower 42 Earth Observation Programmes 42 martian surface 42 Gamma ray burst 42 telescopic observations 42 galactic cosmic rays 42 Joel Sitz project 42 Kent Rominger 42 galactic alignment 42 Comet Encke 42 Chatar Singh Malik 42 Joshua Scheck 42 Zarnecki 42 Zolensky 42 Mark N. Sirangelo 42 Shackleton Crater 42 planet orbiting 42 scientist Carolyn Porco 42 Ron Dittemore 42 constellation Sagittarius 42 Surono 42 volcanic moon Io 42 Giovanni Cassini 42 Andromeda galaxy 42 subsurface ocean 42 Gene Kritsky 42 pallasite meteorite 42 Ed Laguerta 42 Nasa Kepler 42 Mars Odyssey 42 constellation Carina 42 permanently shadowed 42 outer corona 42 asteroid Lutetia 42 twin Voyager spacecraft 42 crater 42 Julia Slingo 42 Solar Terrestrial Relations 42 Capricornus 42 lightest exoplanet 42 astrobiology scientist 42 crewed missions 42 Ken Hasegawa commodity 42 STEREO mission 42 seismologist Lucy Jones 42 orbits Saturn 42 Conrad Lautenbacher 42 lava flowed 42 director Tony Ceccacci 42 de Pater 42 Charon Pluto 42 Asteroid Belt 42 Geological Survey Cascades Volcanic 42 Comet McNaught 42 meteor shower 42 Hellas Basin 42 Elizabeth Buendia 42 Ken Gledhill 42 R. Mallar Vizhi 42 Comet #P 42 Andromeda Galaxy 42 planetary astronomy 42 LADEE 42 erupting lava 42 extrasolar planetary systems 42 Stephen Konarik 42 geostationary orbits 42 Arsia Mons 42 periodic dimming 42 Ring Nebula 42 Gliese #e 42 Cassini Huygens 42 Jay Famiglietti 42 planet Nibiru 42 undersea volcanoes 42 infrared astronomy 42 Olive Luces regional 42 Henry Gholz 42 Ralph Szygenda GM 42 Lowenstern 42 supersymmetric particles 42 Elisabetta Cioppi 42 Jovian moon 42 Thirty Meter Telescope 42 mysterious uncharted 42 Dennis Mammana 42 geospace 42 Kristin Vogfjord geologist 42 planetary alignments 42 astronomer 42 Gamma ray bursts 42 emotional Alan Thirkettle 42 VY Canis Majoris 42 Lawrence Krauss 42 commander Dmitry Kondratyev 42 problem scientifically Aliseda 42 Nozomi Securities 42 Perchonok 42 Laboratory Pasadena 42 Carey Lisse 42 Jupiter icy moons 42 hydrothermal explosions 42 Bob Bagdigian 42 Jos Engelen 42 planets 42 rearview mirror Dworaczyk joked 42 magma boiling 42 Mitsubishi UFJ Asset Management 42 Uninhabited Aerial Vehicle 42 Neptune Uranus 42 Safari Dwiyono 42 Mount Merapi spews 42 Vassilis Angelopoulos 42 Caltech Seismological Laboratory 42 Susan Schonfeld 42 Shackleton crater 42 lunar crust 42 Frances Doria 42 novas 42 Grillmair 42 galaxy M# [002] 42 Anthony Colaprete principal 42 Chuo Securities 42 Hawaiian Volcano Observatory 42 Earth orbiting satellites 42 Hot Jupiters 42 Nicholas Conard 42 Jacque Callanen elections 42 constellation Taurus 42 EPOXI mission 42 spokesman Franco Bonacina 42 Rani Gran 42 lava flowing 42 planetary surfaces 42 Josh Byerly 42 Sagittarius B2 42 Tom Krimigis 42 ESA GOCE 42 star Fomalhaut 42 Cassini ultraviolet 42 Jennifer Ngo Anh 42 planets orbiting distant 42 Tony Ceccacci 42 irregularly shaped asteroid 42 Helix nebula 42 Jupiter Ganymede 42 Gian Gonzaga eHarmony 42 lensing galaxy 42 Martian crater 42 constellation Andromeda 42 sunlike star 42 Hamish Pritchard 42 Chibagin Asset Management 42 Mewaldt 41 Kepler spacecraft 41 twin rovers Spirit 41 magnetar 41 Wallace Broecker 41 Meridiani 41 constellations Cygnus 41 Ingrid Porton 41 eruptive activity 41 Endurance crater 41 Jay Zwally 41 Venus Neptune Uranus 41 Allan Treiman senior 41 planetary Transits 41 MMT Observatory 41 Lisa Howfield general 41 constellation Perseus 41 galaxy M# [001] 41 Catherine Cesarsky 41 Fincke radioed 41 moons orbiting Saturn 41 Richard Dracott general 41 Al Shipe 41 Storrie Lombardi 41 Ouyang Ziyuan 41 Ray Villard 41 John Brunschwyler Taurus 41 Pete Worden 41 Warmer oceans 41 Meridiani Planum 41 Tina Stall 41 Solar flares 41 rocky extrasolar planet 41 Sromovsky 41 RY Sagittarii 41 NASA Jet Propulsion Lab 41 Comet Tempel 1 41 Gregg Maryniak 41 spokesperson Allard Beutel 41 NASA Jet Propulsion Laboratory 41 Fred Espenak 41 ecliptic plane 41 Nehru Planetarium 41 Satish Dhawan 41 Masanobu Ishikawa general 41 Fran Bagenal 41 Pascale Ehrenfreund 41 Bill Gerstenmaier NASA 41 Saturn magnetosphere 41 terrestrial planets 41 Nili Fossae 41 occulted 41 Hematite Slope 41 Phoebe orbits 41 outermost planets 41 renowned cosmologist 41 yellowish brown haze 41 Leonid meteor shower 41 Sleman district 41 nicknamed Bonneville 41 Lulin 41 AERONET 41 Kirk Shireman deputy 41 ESA Rosetta 41 constellation Hercules 41 moons circling 41 Martian arctic 41 Steve Landeene 41 Pier Oddone 41 Linda Birnbaum 41 Gerard Kuiper 41 Konrad Gelbke 41 Halzen 41 Leonid Meteor Shower 41 Stéphane Udry 41 planets orbits 41 Lake Vui 41 NASA Spacecraft 41 exo planet 41 Deep Impact flyby spacecraft 41 Jupiter Uranus 41 Edwin Merner 41 Invisibility cloak 41 Daniel Nietfeld 41 Agus Budianto 41 Doug Hauger general 41 Kavandi 41 Jet Propulsion Laboratory 41 Drew Shindell 41 Gian Luca Bona 41 Maya Tolstoy 41 lunar landers 41 Alexander Averi 41 rocky terrain Pinhasi 41 Orionid meteors 41 Corot 9b 41 Konrad Steffen 41 Julie Brough 41 orbiting telescopes 41 Epsilon Eridani 41 Endeavour Crater 41 Minoru Shioiri senior 41 Claus Mikkelsen 41 manager Gerhard Schwehm 41 cometary debris 41 Franco Barberi 41 radial velocities 41 Terrestrial Planet Finder 41 martian rocks 41 Donna Van Vlack 41 Andrew Feltus 41 Orbiting 41 extrasolar worlds 41 lunar craters 41 Squyres Cornell 41 Talisa Friedman press 41 comet Lulin 41 Al Castignetti Nissan 41 Mr Rolstone 41 Kris Pister 41 Kulcinski 41 manager Pete Theisinger 41 Earl Zmijewski general 41 Mizuho Asset Management 41 Christopher Scolese 41 asteroid flyby 41 Jim Paulsen SSME 41 Atlantis rocketed 41 comet McNaught 41 Dr. Jeffrey Peipert 41 albedo reflectivity 41 Huygens descent 41 Higgs particle 41 called lobate scarps 41 Jesse Blout San Francisco 41 Planetary Physics 41 QQ# 41 Matt Kelmon portfolio 41 jovian 41 thunderstorms loomed 41 Cascade Volcano Observatory 41 comet #P/Churyumov-Gerasimenko 41 GEochemistry 41 Johan Bruyneel Astana 41 Ken Buesseler 41 Henry Heasler Yellowstone 41 Tunguska Siberia 41 Serpens Cauda 41 Raphael Bostic 41 outer planets 41 infrared wavelengths 41 geosynchronous 41 Subandrio 41 exosphere 41 Mars Atmosphere 41 Kjell Karlsen 41 Jamie Kalamarides senior 41 Joel Sitz 41 Siberut island 41 Owen Gingerich 41 cluster NGC 41 NASA THEMIS 41 Alexis Livanos corporate 41 Nobuki Ebisawa managing 41 Virgo Cluster 41 Roger Bayston senior 41 Tony Tether 41 Guhathakurta 41 Ron Dittemore shuttle 41 NASA LCROSS 41 moon Titan 41 Adrian Hooke 41 circumstellar disks 41 MARSIS radar 41 penumbral lunar eclipse 41 Multi Hazards Demonstration 41 Hubble 41 Geminga 41 AU Mic 41 perihelion 41 Sirangelo 41 icy crust 41 COROT 7b 41 Martian dust 41 Eva Pell 41 Anne Schuchat 41 ICESCAPE 41 elongated orbits 41 exoplanets orbiting 41 GOCE 41 HM Cancri 41 G. Madhavan Nair 41 Jeff Greason 41 orbited Jupiter 41 Kim Raum Suryan 41 Dale Warriner 41 ESA Planck 41 StarDate 41 spewing plumes 41 Brant Sponberg 41 bobbling downward 41 interstellar cloud 41 spokeswoman Clarice Ransom 41 asteroid Eros 40 gravitationally bound 40 Fomalhaut 40 director Mike Leinbach 40 terraforming Mars 40 Muchachos Observatory 40 NASA Far Ultraviolet 40 Galaxy Evolution 40 moon Mimas 40 planet orbits 40 Hydrospheric 40 polar icecap 40 Orion nebula 40 Lava flows 40 Scientists Iceland Grimsvotn 40 P/# A2 40 NASA Cassini spacecraft 40 Michele Perchonok 40 Saturn Jupiter Uranus 40 AV Narasimha Murthy 40 Gregg Zank 40 Saturn moon Mimas 40 suffocating Leuer 40 visit http:/saturn.jpl.nasa.gov 40 orbital debris 40 Martian surface 40 Japan Meteorological Agency 40 Volker Liebig ESA 40 Earthquake Hazards Project 40 planet Uranus 40 Anaa atoll 40 Werthimer 40 galactic mergers 40 Gemini constellation 40 colder denser 40 Schellnhuber 40 Galileo spacecraft 40 Yarkovsky effect 40 Costner chuckles 40 moonquakes 40 AP Interview Schieffer 40 Kashlinsky 40 Roger Perlmutter Amgen 40 Danny Sabbah 40 Ira Leifer 40 rover panoramic