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(Click for frequent words.) 64 mid latitudes 62 southern latitudes 61 temperate zones 60 tropics 60 midlatitudes 60 temperate regions 60 equator 60 permanently shadowed craters 59 tropical latitudes 59 mesosphere 59 latitudes 59 subsurface ocean 58 habitable zones 58 deep convective clouds 58 shadowed craters 57 axial tilt 57 Noctilucent clouds 57 heavily cratered 57 Jovian moon 57 Meridiani 57 Dry Valleys 56 Syrtis Major 56 polar regions 56 icy moons 56 polar latitudes 56 geologically active 56 Earthlike planets 56 equatorial 56 super Earths 56 Kuiper Belt objects 56 Hot Jupiters 56 northern latitudes 55 cratered highlands 55 phyllosilicates 55 subtropical oceans 55 KBOs 55 Earthlike 55 lunar equator 55 subglacial lakes 55 Rossby waves 55 Venusian atmosphere 55 Jean Pierre Bibring 55 elongated orbits 55 terrestrial planets 55 permanently shadowed 55 rocky planets 55 subtropics 55 Hellas Basin 55 polar vortex 55 lunar poles 55 Weddell Sea 55 planets orbiting sun 55 Agulhas Current 54 galactic disk 54 moon Europa 54 permanently shadowed regions 54 Ontario Lacus 54 shadowy craters 54 hydrated minerals 54 Kuiper belt 54 lunar crust 54 noctilucent clouds 54 planets orbiting stars 54 cryovolcanism 54 photosphere 54 Geminid meteors 54 exosphere 54 retrograde orbit 54 Saturn moon Enceladus 54 aerosol concentrations 54 CoRoT 9b 54 mantle plumes 54 Earthlike planet 54 temperate latitudes 54 Amundsen Sea 54 equatorial latitudes 53 smoothest flattest 53 subtropical regions 53 Oort cloud 53 Kuiper belt objects 53 innermost planet 53 WASP #b 53 warmer wetter 53 elliptical orbits 53 planetary nebulae 53 HD #b [002] 53 Orionids 53 polar caps 53 Nili Fossae 53 interglacial periods 53 moon Enceladus 53 Gliese #c 53 Cryogenian 53 magma ocean 53 Martian dust 53 poleward shift 53 distant supernovae 53 solar irradiance 53 GJ#b 53 boreal regions 53 gaseous planet 53 smallest exoplanet 53 troposphere 53 Corot 7b 53 HD#b 53 upwellings 53 moonlet 53 protoplanetary disks 53 CoRoT 7b 52 luminous galaxies 52 comets orbiting 52 Milankovitch cycles 52 interglacial period 52 sized planets orbiting 52 ocean basins 52 Martian equator 52 Shackleton crater 52 Oort Cloud 52 transiting planets 52 chromosphere 52 McMurdo Dry Valleys 52 meteor impacts 52 COROT 7b 52 Planitia 52 anthropogenic aerosols 52 planets Uranus 52 Corot 9b 52 icy comets 52 southerly latitudes 52 perihelion 52 sunlike stars 52 exoplanets orbiting 52 dustier stormier atmosphere 52 northerly latitudes 52 Enceladus 52 cosmic ray flux 52 Epsilon Eridani 52 circular orbits 52 lunar craters 52 eccentric orbits 52 upper troposphere 52 potentially habitable 52 tropopause 52 planets orbiting distant 52 Saturn rings 52 poleward 52 jarosite 52 inhabitable planets 52 interstellar clouds 52 protoplanetary discs 51 Kuiper Belt Objects 51 ecliptic plane 51 Isidis Planitia 51 aerosol particles 51 polar craters 51 Saturn Enceladus 51 hematite mineral 51 Samuel Oschin Telescope 51 planemos 51 Goldilocks zone 51 planet Gliese #g 51 El Nino Southern Oscillation 51 Cancri e 51 olivine mineral 51 subpolar 51 Saturn moon 51 lithosphere 51 Gakkel Ridge 51 Tharsis Rise 51 martian atmosphere 51 planets orbits 51 interstellar boundary 51 planets circling stars 51 scarps 51 La Niña pattern 51 constellation Virgo 51 Pluto Charon 51 volcanically active 51 GJ #b [001] 51 Sedna 51 Lake Untersee 51 Coma Cluster 51 gaseous planets 51 Ulysses spacecraft 51 Jupiter icy moons 51 ionized hydrogen 51 comets asteroids 51 binary asteroids 51 GJ #b [002] 51 proto planetary disk 51 interstellar cloud 51 Martian meteorites 51 extrasolar 51 habitable planet 51 cirrus clouds 51 zodiacal light 51 moons orbiting 51 active volcanism 51 radar altimetry 51 Gliese #d 51 ITCZ 51 Io volcanoes 51 planets astronomers 51 lunar perigee 51 TrES 4 51 northern arctic plains 50 mineral olivine 50 water vapor 50 anticyclones 50 starburst galaxies 50 planetesimals 50 X ray emission 50 planet Gliese #c 50 basaltic rocks 50 multi decadal 50 meteorite impacts 50 exo planets 50 Equatorial Pacific 50 AU Mic 50 extrasolar planets 50 lunar highlands 50 Saturn moons 50 habitable planets 50 Martian surface 50 Omega Centauri 50 Puijila 50 midlatitude 50 moonlets 50 Polar Regions 50 Jupiter moon Io 50 Plesiosaurs 50 coniferous forests 50 sub tropic 50 chondrules 50 constellation Aquarius 50 lobate scarps 50 Siberian permafrost 50 albedo reflectivity 50 coldest driest 50 Cassini flyby 50 magnetotail 50 Upsilon Andromedae b 50 tropical subtropical 50 energetic electrons 50 Fram Strait 50 Warmer climates 50 refugia 50 Northern Hemisphere 50 galactic cosmic rays 50 atmospheric circulation 50 planets circling 50 Martian volcanoes 50 Jupiter moons Europa 50 retrograde orbits 50 anomalously warm 50 interglacial 50 polar plateau 50 protoplanetary disk 50 constellation Perseus 50 Extrasolar planets 50 airglow 50 SST anomalies 50 Rignot 50 interstellar particles 50 dusty disks 50 Adélie penguins 50 sub glacial lakes 50 Fomalhaut b 50 Galilean satellites 50 interstellar dust grains 50 magnetic polarity 50 extrasolar planets orbiting 50 Terra Meridiani 50 Wolszczan 50 Beta Pictoris b 50 Iapetus 49 exoplanetary 49 Saharan dust 49 meridional flow 49 Vastitas Borealis 49 sunspot cycles 49 Cabeus 49 exoplanet orbiting 49 gravitational microlensing 49 Aram Chaos 49 subtropical climates 49 tungsten isotopes 49 solar minima 49 Antennae Galaxies 49 deglaciation 49 mid Pliocene 49 Geminids 49 glacial cycles 49 Candor Chasma 49 solar nebula 49 tropical troposphere 49 El Niños 49 ultraviolet wavelengths 49 moon Deimos 49 sterile neutrino 49 Quadrantids 49 constellation Libra 49 ULIRGs 49 jovian 49 volcanism 49 Kepler 9c 49 sedimentary deposits 49 subglacial 49 solar corona 49 Service WGMS 49 supersymmetric particles 49 Saturn moon Mimas 49 distant supernovas 49 constellation Leo 49 sediments deposited 49 Martian polar 49 Maunder minimum 49 extrasolar planet 49 planet HD #b 49 outer planets 49 sauropodomorphs 49 giant gaseous planets 49 La Niñas 49 IRC +# 49 Antarctica 49 Holocene epoch 49 Orionid 49 habitable worlds 49 Svedhem 49 magnetopause 49 NASA Cassini spacecraft 49 icecap 49 X ray binaries 49 Cassini flybys 49 steering currents 49 lavas 49 stratospheric clouds 49 undersea volcanoes 49 interglacials 49 seabed sediments 49 Laptev Sea 49 Gemini constellation 49 driest deserts 49 oceanic circulation 49 Pacific Decadal Oscillation 49 Laurasia 49 moon permanently shadowed 49 Quaoar 49 polar stratospheric 49 Antarctic Dry Valleys 49 synchronous orbit 49 Indian Ocean Dipole 49 icy crust 49 hotter summers 49 Jupiter Ganymede 49 Saturnian 49 constellation Taurus 49 Meteor showers 49 VY Canis Majoris 49 equatorial belt 49 planet orbits 49 planets orbiting 49 Gusev crater 49 dirty snowballs 49 infrared wavelengths 49 downwelling 49 La Nina cooling 49 Noachian era 49 stellar nurseries 49 TNOs 49 Alfven waves 49 Mud volcanoes 49 Cosmic rays 49 landmasses 49 active galactic nuclei 49 sulfate aerosols 49 Toutatis 49 greenhouse warming 49 NASA satellites orbiting 49 Current Warm Period 49 manmade greenhouse gases 49 foraminifera 49 Saturnian moon 49 Shackleton Crater 49 amplifying feedbacks 49 telescopic observations 48 electron neutrinos 48 Martian gullies 48 cometary material 48 Saturnian moons 48 red supergiant 48 cryosphere 48 Paleocene Eocene Thermal Maximum 48 permanently shadowed crater 48 blue supergiant 48 CoRoT satellite 48 -# degrees centigrade [001] 48 silicates 48 geostationary orbits 48 Fermi telescope 48 icesheet 48 exoplanets planets 48 chondrites 48 Transantarctic Mountains 48 coccolithophores 48 Quadrantid 48 cosmological distances 48 exoplanets 48 spacecraft flyby 48 Klekociuk 48 comets 48 auroral activity 48 Jay Zwally 48 alpine glaciers 48 Homo sapiens evolved 48 convective clouds 48 tropical climates 48 constellation Eridanus 48 martian meteorites 48 Delta Cephei 48 polar icecap 48 foehn 48 moons orbiting Saturn 48 Antarctic glaciers 48 smoothest flattest spot 48 polar mesospheric clouds 48 Arctic oscillation 48 interstellar dust 48 Lunine 48 infrared spectra 48 permafrost thaws 48 Murchison meteorite 48 hypervelocity stars 48 equatorial Pacific Ocean 48 Bose Einstein condensates 48 baryonic matter 48 Comet NEAT 48 liquid ethane 48 elongated orbit 48 spherules 48 ecliptic 48 oxygen isotopes 48 cosmic ray intensity 48 electron diffusion 48 outer corona 48 dwarf galaxies 48 Geminga 48 dromaeosaurs 48 occultations 48 Gondwanaland 48 Hesperian Epoch 48 anticyclonic 48 primitive organisms 48 binary asteroid 48 redshifts 48 gravitational perturbations 48 chlorophyll concentrations 48 constellation Hercules 48 Medieval Warm Period 48 eastern equatorial Pacific 48 Comet Tempel Tuttle 48 Cabeus crater 48 volcanic aerosols 48 P/# A2 48 RRATs 48 Bug Nebula 48 redshifted 48 hot Jupiters 48 chlorine monoxide 48 asteroid Vesta 48 globular clusters 48 ALH# 48 filamentary structures 48 temperate forests 48 asteroids comets 48 gamma ray flashes 48 constellation Centaurus 48 NASA QuikScat satellite 48 Cosmic Microwave Background 48 albedo 48 YORP effect 48 Jupiter Saturn Uranus 48 volcanic activity 48 Magellanic Clouds 48 IntergalaticEarth 48 penumbral shadow 48 orbited Jupiter 48 Dr Trewin 48 EPOXI spacecraft 48 deepwater corals 48 shaded craters 48 Beta Pictoris 48 carbonaceous chondrites 48 potentially habitable planets 48 exoplanetary systems 48 Perseus Cluster 48 ancient supercontinent 48 inner Oort Cloud 48 megacryometeor 48 mammal extinctions 48 brown dwarfs 48 thermal vents 48 atmospheric methane 47 Velicogna 47 MARSIS 47 coronal loops 47 Siple Dome 47 galactic alignment 47 tectonically active 47 permafrost melts 47 Lunar Prospector 47 celestial equator 47 climatologically 47 anthropogenic warming 47 Palaeocene Eocene Thermal Maximum 47 asteroid impacts 47 highly elliptical orbit 47 springtime ozone 47 sunlike star 47 Warmer oceans 47 Kuiper Belt Object 47 prevailing westerly winds 47 Gliese #e 47 antarctic 47 Comet McNaught 47 hydrological cycle 47 Kuiper Belt 47 orbital eccentricity 47 Phoebe orbits 47 Super Earths 47 Viking orbiters 47 La Nina pattern 47 auroral 47 red supergiants 47 Greenland glaciers 47 past boninite lavas 47 forams 47 Dr van Ommen 47 moon Mimas 47 planets 47 warmings 47 NASA rovers Spirit 47 Gondwana supercontinent 47 clathrates 47 substorm 47 rotational axis 47 constellation Sagittarius 47 biosignatures 47 Sasselov 47 abyssal plain 47 Siberian Traps 47 galactic halo 47 Elysium Planitia 47 atmospheric convection 47 glacial interglacial 47 lunar craters near 47 Homo erectus evolved 47 comet orbit 47 Upsilon Andromedae 47 Saturn magnetosphere 47 atmospheric circulations 47 northern hemisphere 47 crystalline silicates 47 planetoids 47 Arabia Terra 47 orbiting spacecraft 47 relativistic particles 47 coastal upwelling 47 glacial melt 47 aurorae 47 Gondwanan 47 protoplanets 47 TrES 47 spiral nebulae 47 Bonneville Crater 47 ESA Mars 47 infrared radiation 47 proto planetary disks 47 aphelion 47 subantarctic 47 Antarctic icecap 47 climatic variability 47 solar insolation 47 Melting glaciers 47 Little Ice Age 47 elliptical galaxies 47 cosmic rays 47 lava tubes 47 Kuiper belt object 47 Geminid 47 polar 47 Orion nebula 47 lunar magma 47 silicate dust 47 volcanic lava flows 47 supercontinent 47 erupt explosively 47 thin crescent 47 Titan smoggy 47 Hellas Planitia 47 AB Aurigae 47 diffuse aurora 47 colder denser 47 evaporite deposits 47 Milky Way halo 47 exoplanet atmospheres 47 upwelling currents 47 Endeavour Crater 47 Eemian 47 Trifid Nebula 47 hunting Kepler telescope 47 X ray wavelengths 47 GZK cutoff 47 Galileo spacecraft 47 crustal thickness 47 #.#C #.#F [003] 47 Higgs particle 47 Opportunity rover 47 cirrus 47 Capricornus 47 auroral displays 47 insolation 47 phyllosilicate 47 cosmic ray particles 47 Saharan Desert 47 continental crust 47 katabatic winds 47 meridional overturning circulation 47 Martian terrain 47 COROT 47 moons Phobos 47 interstellar medium 47 ejecta 47 Last Glacial Maximum 47 Mars 47 snowline 47 mineralogical composition 47 Pluto Eris 47 Great Conveyor Belt 47 Sunspots 47 hydrothermal springs 47 Mount Bosavi 47 CAIs 47 Neoproterozoic 47 Bindschadler 47 Scientists theorize 47 continental rifting 47 Kiruna Sweden 47 interstellar grains 47 ornithischians 47 Terre Adelie 47 lunar soil 47 gravitationally bound 47 comet Tempel Tuttle 47 tholins 47 circumstellar 47 NASA Voyager spacecraft 47 permafrost 47 Stephane Udry 47 La Nina occurs 47 meridional 47 unmanned probes 47 subglacial lake 47 #.#oC [001] 47 southern supercontinent 47 circumstellar disks 47 magnetic reconnection 47 cratons 47 stratospheric ozone depletion 47 circumstellar disk 46 flood basalts 46 Neutron stars 46 glaciers 46 HL Tau 46 tropic regions 46 Miocene epoch 46 cometary 46 constellation Cetus 46 Comet LINEAR 46 neutrino mass 46 glacial melting 46 exo planet 46 HD# [002] 46 oceanic islands 46 glacier retreat 46 astrobiologists 46 Kelvin -# 46 Nasa spacecraft 46 cometary impacts 46 exoplanets planets outside 46 KT boundary 46 lunar orbiters 46 coolings 46 carbonaceous chondrite 46 galactic mergers 46 Manned missions 46 distant quasars 46 starlike object 46 phytoplankton blooms 46 Martian craters 46 Mr Rolstone 46 NASA twin rovers 46 extratropical cyclones 46 Gliese #G 46 Jupiter Saturn 46 extragalactic 46 GRBs 46 Tibetan Plateau 46 Tuamotu Archipelago 46 mountain glaciers 46 accretion disks 46 melting icebergs 46 gravitational interaction 46 CMB radiation 46 Crozet Islands 46 astronomical objects 46 semiarid regions 46 Southern Oscillation 46 Solar TErrestrial RElations Observatory 46 interstellar dust particles 46 photosynthetic organisms 46 equatorial Pacific 46 martian surface 46 atmospheric CO2 levels 46 ° C warmer 46 planetary orbits 46 dense clumps 46 -# degrees Fahrenheit [002] 46 Geminid shower 46 asteroidal 46 NEAs 46 forecaster Helen Chivers 46 Diviner 46 polar oceans 46 Triassic Period 46 extrasolar planetary systems 46 Antartica 46 Antarctic peninsula 46 icecaps 46 wrinkle ridges 46 atmospheric oceanic 46 periodic dimming 46 OGLE TR #b 46 Cepheids 46 cosmic ray collisions 46 Endurance crater 46 asthenosphere 46 Di Achille 46 lunar surface 46 planet orbiting 46 Geophysical Research 46 diatom species 46 TGFs 46 paleomagnetic 46 earthshine 46 slender crescent 46 carbonate minerals 46 altocumulus 46 Grillmair 46 Espenak 46 Gliese #g 46 comet orbital 46 radial velocity 46 abyssal plains 46 oceanic plates 46 BP Psc 46 Churyumov Gerasimenko 46 Himalayan river basins 46 Hubble observations 46 Hal Levison 46 Comet Hartley 2 46 NASA rover Spirit 46 paleoclimate 46 Microlensing 46 star Spica 46 dynamical processes 46 semidesert 46 glaciations 46 Pleistocene Ice Age 46 Mars Squyres 46 planetary geologists 46 Earth magnetotail 46 ocean eddies 46 marine sediments 46 latitudinal 46 missing baryons 46 grabens 46 Atlantic Multidecadal Oscillation AMO 46 faint galaxies 46 warmer wetter winters 46 Late Paleozoic 46 longwave radiation 46 ejecta blanket 46 NOAA Geophysical Fluid 46 coronal holes 46 gaseous envelope 46 millisecond pulsars 46 transiting exoplanets 46 Cassini ion 46 active galactic nucleus 46 millisecond pulsar 46 Antarctic Peninsula 46 Konacki 46 Mandushev 46 sheet Summerhayes 46 volcanic vents 46 moon Io 46 Patagonian Andes 46 Chasma Boreale 46 constellation Andromeda 46 sulfate minerals 46 gyres 46 visible wavelengths 46 Higgs bosons 46 underwater volcanos 46 cometary dust 46 Oceanus Procellarum 46 reduce visibilities 46 Antarctic continent 46 #P/Churyumov-Gerasimenko 46 Viking Lander 46 glacial meltwater 46 Kilimanjaro glaciers 46 Pleiades cluster 46 magnetotactic bacteria 46 filamentary structure 46 Olympus Mons 46 chondritic meteorites 46 glacier shrinkage 46 BP Piscium 46 SSTs 46 HARPS instrument 46 Epoxi 46 Saturn moons Enceladus 46 Galactic Plane 46 sedimentary layers 46 Martian atmosphere 46 magnetars 46 #.#C warmer 46 greatest insect emergences 46 carbon dioxide concentrations 46 geomagnetic activity 46 NASA ICESat 46 treelines 46 Meridiani Planum 46 sunspot activity 46 Composite Infrared Spectrometer 46 water vapor condenses 46 globulars 46 Gas hydrates 46 sparse vegetation 46 optical wavelengths 46 Comet Halley 46 Ice Ages 46 Goldilocks planet 46 Voyager spacecraft 46 called lobate scarps 46 El Nino warming 46 galactic bulge 46 cyclonic storms 46 Nibiru 46 called gray hematite 46 methane clathrates 46 sulfate salts 46 oceanic crust 46 paleoclimatic 46 Neptune Uranus 46 Patagonian glaciers 46 abundances 46 glaciation 46 dwarf spheroidal galaxies 46 El Ninos 46 Mercury flyby 46 oxygen isotope 46 energetic cosmic rays 46 Michael Studinger 46 magnetospheric 46 calderas 46 Tarduno 46 Hesperian epoch 46 galaxy cluster 46 southern hemisphere 46 Fashion Movie Reviews 46 explosive volcanism 46 VIRTIS 46 composite infrared spectrometer 46 nematode Caenorhabditis elegans 45 penetrating radar 45 asteroid Eros 45 Globular clusters 45 Bruce Jakosky 45 lowermost mantle 45 Milky Way Galaxy 45 olivines 45 colder wetter 45 heliosheath 45 intracluster 45 magmas 45 glacial retreat 45 colugos 45 Delta Aquarids 45 Red Planet 45 tectonic stresses 45 MARSIS radar 45 Paliki 45 Lake Vostok 45 tropospheric 45 Jovian moons 45 albedo feedback 45 seafloor sediments 45 humid tropics 45 sun irradiance 45 species interbred 45 methanogens 45 cosmic phenomena 45 strange quark 45 superstorms 45 hotter climates 45 Evolution Explorer 45 layered outcrops 45 occulted 45 oceanic currents 45 gravitational interactions 45 Orbiter MRO 45 Saturn Cassini 45 prograde 45 protoplanet 45 accretion disk 45 constellation Gemini 45 colder drier 45 Pacific Decadal Oscillation PDO 45 supercontinent Pangaea 45 Sinus Meridiani 45 underwater volcanoes 45 seafloor sediment 45 protostars 45 Mars Uranus 45 Alpine glaciers 45 Denisova Cave 45 lake sediments 45 C4 grasses 45 microbialites 45 Svensmark 45 Andromeda galaxy 45 distant galaxies 45 Eta Aquarid meteor shower 45 Martian lander 45 magnetic monopoles 45 Jupiter magnetosphere 45 habitable zone 45 primitive meteorites 45 warmer temperatures 45 Polar Vortex 45 stationary lander 45 mantle convection 45 Socompa 45 mu Arae 45 acidifying oceans 45 Valles Marineris 45 Palaeozoic sedimentary 45 Martian soil 45 Sagittarius dwarf galaxy 45 hydroxyl molecules 45 meteorite bombardment 45 vesper bats 45 Celsius #.#F 45 frigid arctic plains 45 Martian permafrost 45 temperate climates 45 meteoroid impacts 45 Planck spacecraft 45 GISS analysis 45 microlensing events 45 coral atolls straddling 45 ocean ridges 45 Fornax cluster 45 AGNs 45 equatorial waters 45 geoneutrinos 45 icesheets 45 durable twin rovers 45 Antarctic 45 ocean currents 45 collisional 45 ancient hominid 45 celestial sphere 45 planetoid 45 ringed planet 45 zodiac constellations 45 Antarctic Circumpolar Current 45 Laurentide ice sheet 45 atmospheric aerosols 45 Milky Way galaxy 45 proplyds 45 Perseus constellation 45 Mimas 45 teleconnections 45 anthropogenic carbon dioxide 45 hydrosphere