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(Click for frequent words.) 65 lunar crust 64 martian soil 63 volcanic basalt 62 polar craters 62 Martian rocks 62 phyllosilicate 62 solidified lava 62 lunar soil 61 windblown sand 61 spherules 61 Martian dunes 61 Martian dust 61 Gusev crater 61 Martian craters 60 Martian landscape 60 silicate rocks 60 cometary dust 60 Lander robotic arm 60 mineral olivine 60 overlying layers 60 Martian crater 60 lunar regolith 60 HiRISE image 60 olivine rich 60 seafloors 60 layered outcrops 60 Mossbauer spectrometer 60 seafloor sediment 59 stony meteorites 59 icy moons 59 microscopic fossils 59 claylike 59 basalt volcanic 59 icy crust 59 Lake Vostok 59 micrometeorite impacts 59 Saturnian moon Titan 59 silicon monoxide 59 interstellar dust grains 59 icy comets 59 Earthly contamination 59 moon Phobos 59 hydrated minerals 59 concretions 59 planets asteroids 59 finely layered 59 ejecta blanket 59 rubbly 59 mineral hematite 59 NASA Opportunity rover 59 tholins 59 Martian rovers 59 basaltic rocks 59 bedrock outcrops 58 circumstellar 58 meteor craters 58 phyllosilicates 58 Neutron stars 58 Upsilon Andromedae b 58 Graphene oxide 58 yardangs 58 Candor Chasma 58 Martian terrain 58 Polycyclic aromatic hydrocarbons 58 Meridiani 58 rock outcrop 58 hydrated silica 58 Opportunity rover 58 sedimentary deposits 58 moondust 58 comets asteroids 58 olivine crystals 58 Endurance crater 58 lunar craters 58 smoggy atmosphere 58 sulfate minerals 58 ferric oxides 58 layered bedrock 58 NASA Spirit rover 58 abrasion tool 57 quartz grains 57 sedimentary layers 57 basaltic rock 57 chondritic meteorites 57 clumpy soil 57 abyssal plains 57 Opportunity Mars rover 57 refrozen ice 57 magma ocean 57 planets atmospheres 57 Mars Meridiani Planum 57 HiRISE images 57 dust mote 57 meteoritic material 57 martian landscape 57 moisture seeps 57 planetary geologists 57 Terra Meridiani 57 lunar meteorites 57 earthlike 57 hydroxyl molecules 57 microscopic crystals 57 Syrtis Major 57 crossbedding 57 volcanic lava 57 Martian surface 57 airglow 57 meteorite fragments 56 Terra Sirenum 56 spheroidal 56 carbonate globules 56 asteroidal 56 snail shells 56 salt crystals 56 Saturn moon Mimas 56 rectangular slabs 56 graphene sheet 56 zinc sulfide 56 volcanic lava flows 56 comet dust 56 outer corona 56 NASA rover Opportunity 56 martian surface 56 silicate dust 56 Ground penetrating radar 56 circular depressions 56 Cut slits 56 Mars moon Phobos 56 COROT 7b 56 Ares Vallis 56 meteorite craters 56 jarosite 56 iron sulfate 56 lobate 56 permanently shadowed craters 56 Martian equator 56 fossilized coral 56 graphite whiskers 56 crystal lattices 56 topmost layer 56 Mars Squyres 56 Martian soil 56 Mars rover Opportunity 56 bedrock outcropping 56 halite 56 APXS 56 hematite mineral 56 Endurance Crater 56 NASA rover Spirit 56 Saturn Enceladus 56 tiny flecks 56 exosphere 56 isotopic signature 56 Saturn Cassini 56 perfectly spherical 55 Jovian moon 55 moons orbiting 55 protoplanetary disc 55 molten magma 55 hummocks 55 interstellar dust particles 55 cryovolcanism 55 stromatolite 55 shadowed craters 55 silicate grains 55 interstellar cloud 55 saprolitic 55 trilobite fossils 55 motorized rasp 55 calcite crystals 55 pinwheel shaped 55 reddish orange hue 55 McMurdo Dry Valleys 55 Lightly flour 55 martian meteorites 55 galactic cores 55 lunar equator 55 geoneutrinos 55 silicate mantle 55 seabed sediments 55 OMEGA instrument 55 pebble sized 55 interstellar grains 55 reentry capsule 55 Hellas Basin 55 striations 55 uncompacted 55 microscopic creatures 55 abyssal plain 55 Sojourner rover 55 microscopic imager 55 metamorphic rock 55 silicate minerals 55 Jovian atmosphere 55 moon Enceladus 55 shadowy craters 55 GJ#b 55 unmelted 55 stringy fibers 55 lava tubes 55 seafloor sediments 55 scarps 55 spacecraft flyby 55 turbidites 55 asthenosphere 55 crystalline silicates 55 gray hematite 55 apple peels 55 metamaterial structures 55 Martian plains 55 Herschel Crater 55 postholes 55 Titan Saturn 55 ah dus 55 extrasolar 55 crater pocked 55 coral skeletons 55 protoplanet 55 Bonneville Crater 55 silty clay 55 gypsum crystals 55 fieldstone walls 55 filamentary structure 55 Banerdt 54 NASA rovers Spirit 54 fossilized shells 54 proto planetary disks 54 circumstellar disk 54 Kuiper belt objects 54 smallest exoplanet 54 Venusian atmosphere 54 lightless depths 54 Mercury magnetosphere 54 shallow depressions 54 olivine mineral 54 Martian volcanoes 54 outer crust 54 sphagnum 54 Earthlike planets 54 cumulus cloud 54 basalt rocks 54 starch granules 54 permanently shadowed lunar 54 Unroll dough 54 atomic lattice 54 synchrotron x ray 54 telltale clues 54 Jovian moons 54 Martian meteorites 54 interstellar particles 54 Geochemical analysis 54 Palaeozoic sedimentary 54 infrared spectrometers 54 pediment gravels 54 cratons 54 jovian 54 cometary debris 54 olivines 54 cometary material 54 subsurface ocean 54 meteor impacts 54 bark crevices 54 arctic plains 54 cometary impacts 54 Corot 7b 54 Mini TES 54 Saturn outermost ring 54 Saturn moon 54 sediments deposited 54 crustal rocks 54 Aram Chaos 54 zodiacal dust 54 Mount Bosavi 54 Nanopores 54 calderas 54 spectral fingerprint 54 amorphous silica 54 chalky white 54 massifs 54 martian 54 volcanic moon Io 54 asteroids comets 54 silicified rocks 54 sunlike stars 54 Guatemala sinkhole 54 tiniest speck 54 Murchison meteorite 54 Diviner instrument 54 martian atmosphere 54 subglacial lakes 54 lander robotic arm 54 Antarctic Dry Valleys 54 sub glacial lakes 54 spongelike 54 Caloris Basin 54 dense clumps 54 exo planets 54 pinpoints Lopez Alegria 54 colder denser 54 planetary surfaces 54 silica spheres 53 fork tine 53 comet nuclei 53 Phoebe orbits 53 Mössbauer spectrometer 53 Stardust comet 53 Radioactive substances 53 craters 53 bear scat 53 unweathered 53 moons Phobos 53 microfossil 53 chondrules 53 left handed isovaline 53 spectroscope 53 Enceladus icy 53 dinosaur skulls 53 microbialites 53 BIF outcrops 53 jellylike 53 retroreflector 53 rocks 53 moon Europa 53 microfossils 53 comets orbiting 53 Use melon baller 53 intrinsic brightness 53 Nasa spacecraft 53 lunar magma 53 starquakes 53 dirty snowballs 53 Storing carbon dioxide 53 Robotic Arm Camera 53 accretion disks 53 Hydrogenated fats 53 congealed grease 53 Earthlike 53 paleomagnetic 53 undersea volcanoes 53 FALCON Water 53 regolith 53 KBOs 53 speleothems 53 foraminifera 53 cesium vapor 53 frost heaved 53 planetesimal 53 unmanned probes 53 binary asteroid 53 heavily cratered 53 brownish haze 53 basaltic lava 53 D. radiodurans 53 limestone bedrock 53 GJ #b [002] 53 Valles Marineris 53 meteorite impacts 53 Cut crosswise 53 crust 53 Dodo Goldilocks trench 53 Cabeus crater 53 cenospheres 53 Saturn moon Iapetus 53 moonlets 53 subglacial lake 53 igneous rocks 53 carbonaceous chondrite 53 barren expanse 53 spacecraft thrusters 53 powdery dust 53 Use paring knife 53 Galileo spacecraft 53 Mössbauer 53 iridium layer 53 glasslike 53 Saturnian moon 53 water vapor condenses 53 ancient lakebed 53 Martian permafrost 53 magnetic monopoles 53 waxy coating 53 AB Aurigae 53 Sagittarius dwarf galaxy 53 pigmented wax 53 massive galena 53 alternating layers 53 isotopic compositions 53 Cosmic Microwave Background 53 spectral fingerprints 53 papery skin 53 rover Spirit 53 planets orbits 53 smoothest flattest 53 stony meteorite 53 planetesimals 53 rock outcrops 53 isotopic ratios 53 carbonaceous chondrites 53 Allende meteorite 53 planet Gliese #g 53 smoothest flattest spot 53 leaf undersides 53 forams 53 Galilean satellites 53 Martian arctic 53 Comet 9P/Tempel 1 53 igneous rock 53 Wassonite 53 extrasolar worlds 53 plantlike 53 cinder cones 53 posthole 53 Carefully peel 53 NEAs 53 hollow cylinders 53 biosignatures 53 porous sandstone 53 claystone 53 suface 53 comet particles 53 Orbiter LRO 53 asteroid Eros 53 TEGA oven 53 Scrub potatoes 53 volcanic vents 52 VY Canis Majoris 52 Hot Jupiters 52 moon Io 52 rotating neutron stars 52 WISE spacecraft 52 Jonathan Lunine 52 TEGA ovens 52 conglomeratic 52 metate 52 Opportunity rovers 52 oxidized iron 52 sulfur isotopes 52 massive sulphide horizons 52 evaporite 52 WISE telescope 52 primitive meteorites 52 finely crushed 52 Martian gullies 52 argon atoms 52 called gray hematite 52 elemental composition 52 spectroscopically 52 gelatinous mass 52 petrographic 52 rubber granules 52 magnetite crystals 52 Martian polar 52 thin wispy clouds 52 Meridiani Planum 52 earths crust 52 crushed peppercorns 52 Nasa Mars Reconnaissance 52 lunar meteorite 52 fossilized pollen 52 microscopic specks 52 elongated orbits 52 Valles Marineris canyon 52 sized chunks 52 Arrange tomato slices 52 spiders webs 52 Fomalhaut b 52 waterfall cascades 52 Viking Orbiter 52 subseafloor 52 retrograde orbit 52 loess 52 wispy cirrus clouds 52 volcano Olympus Mons 52 Si substrate 52 atomically flat 52 polygon shaped 52 hydrocarbon haze 52 disseminated sulfide 52 gaseous planet 52 Flaking 52 tart crust 52 circumstellar disks 52 moon Mab 52 bentonite clay 52 micrometres thick 52 silicate mineral 52 polar layered 52 multi celled 52 fecal pellets 52 inverted cone 52 moon Mimas 52 glacial erratics 52 magnesium sodium potassium 52 nanoprobe 52 dust motes 52 Voyager spacecraft 52 celestial snowball 52 dolerite 52 nanoribbon 52 frass 52 HARPS instrument 52 comet McNaught 52 wooden timbers 52 surface 52 geyser plumes 52 conodonts 52 yellowish liquid 52 Powdery 52 mineralogical composition 52 filamentary 52 UVIS instrument 52 ammonia hydrates 52 Cometary 52 protoplanetary 52 dwelling organisms 52 insect larva 52 foam insulations 52 vugs 52 antarctic ice 52 smallest exoplanets 52 Analyzer TEGA 52 Siple Dome 52 sand silt 52 glops 52 micro meteorites 52 hardened lava 52 colliding tectonic plates 52 scanning electron microscope SEM 52 Mars rovers Spirit 52 mica schist 52 distant suns 52 Martian meteorite 52 ejecta plume 52 carbonaceous meteorites 52 polygonal shapes 52 gravity warps 52 granite outcroppings 52 floating orbs 52 ostracods 52 coccolithophores 52 hollow tubes 52 mildly alkaline 52 neutrino particles 52 Viking landers 52 distant supernovae 52 cosmic phenomena 52 Mojzsis 52 NASA Lunar Prospector 52 lateritic 52 Shape dough 52 icicle shaped 52 NASA twin rovers 52 geotextile fabric 52 ejecta 52 moonquakes 52 crisscross pattern 52 gaseous planets 52 carbon isotope ratios 52 unfired clay 52 light refracting 52 lake sediments 52 nutshells 52 Ionosphere Sounding 52 pore spaces 52 heatproof glass 52 nebular 52 Oort cloud 52 rootlets 52 clasts 52 spruce cones 52 silicate crystals 52 lensing galaxy 52 Gamma ray burst 52 Saturnian moons 51 exo planet 51 Descent Imager Spectral Radiometer 51 KH #D 51 amorphous calcium carbonate 51 clumpiness 51 colluvial 51 Kraken Mare 51 microplastics 51 unconsolidated sediments 51 oblong shapes 51 Stromatolites 51 fungal hyphae 51 Scanning electron microscopy 51 spicule 51 galaxies collide 51 cryogenic rubber 51 spherical objects 51 grabens 51 basalt cliffs 51 sulfate salts 51 HiRISE camera aboard 51 vapor condenses 51 planet Nibiru 51 phytoliths 51 spectral measurements 51 nitrogen fixers 51 uppermost layer 51 merging galaxies 51 chalcogenides 51 spatially resolved 51 miniature ovens 51 Splintered wood 51 Huge chunks 51 landforms 51 dino bones 51 lotus leaves 51 whiz harmlessly 51 rover robotic arm 51 gravitational tugs 51 planet HD #b 51 Io volcanoes 51 nanobubbles 51 crustal thickness 51 chopped macadamia nuts 51 silicone caulking 51 coronal loops 51 crayon rubbings 51 micrometer scale 51 photosphere 51 mussel shells 51 rubbery polymer 51 Martian crust 51 microbial mats 51 equatorial plains 51 subaqueous 51 unbaked pie shell 51 fossilized traces 51 glacial moraines 51 solidified lava flows 51 Spider webs 51 micrometre sized 51 Sedimentary rocks 51 meteoroids 51 atomically smooth 51 COLETO CREEK Water 51 nano fibers 51 ferric oxide 51 calcium carbonates 51 Laurentide ice sheet 51 hollow cylindrical 51 dust devils 51 interstellar distances 51 hummocky 51 granite gneiss 51 electron neutrinos 51 spectral signatures 51 Gliese #G 51 indestructible BOB 51 carbon nanotube bundles 51 Cassini flybys 51 crunches underfoot 51 supercooled droplets 51 plagioclase 51 polar vortex 51 stalagmites 51 wax melts 51 rover Opportunity 51 silicified limestone 51 thicker crust 51 emit X rays 51 endospores 51 cometary 51 meteor fragment 51 polystyrene spheres 51 lava flowed 51 sun glints 51 infrared telescopes 51 outcrop exposures 51 spherical halo 51 moon Titan 51 limestone slabs 51 lunar highlands 51 planet magnetosphere 51 Titanic hull 51 NASA satellites orbiting 51 outermost layers 51 Compact Reconnaissance Imaging Spectrometer 51 deepest darkest abyss 51 spindrift 51 Saturn rings 51 oxygen isotopes 51 gray hematite mineral 51 onto ungreased baking 51 Lake Untersee 51 powdery sand 51 powdery residue 51 Anthony Remijan 51 tailings piles 51 Vasari fresco 51 paint spatters 51 carbonaceous chondrite meteorites 51 ionized particles 51 Guatemala Pacaya volcano 51 SPICAM 51 Balarat Project 51 bark peels 51 Radiocarbon tests 51 volcanic tuff 51 capillary tubes 51 energetic electrons 51 Elysium Planitia 51 arils 51 single celled algae 51 microbial ecosystems 51 axions 51 malachite mineralization 51 planets orbiting sun 51 Gravitational waves 51 lasagna noodle 51 crystallites 51 impermeable shale 51 northern arctic plains 51 insulating layers 51 gummy worm 51 lunar orbiters 51 darkly colored 51 oceanic plates 51 lava spewing 51 Hadron collider 51 Viking orbiters 51 cometary particles 51 carbon spherules 51 Saturn moon Enceladus 51 fossilized dinosaur dung 51 alluvial soils 51 Seafloor 51 basalt rock 51 carbonate minerals 51 fossilized creatures 51 litho geochemical 51 Institute MBARI 51 graphene flake 51 sticky sap 51 dried bonito flakes 51 periodic dimming 51 lightly greased baking 51 galactic disk 51 ancient lava flows 51 Martian lander 51 peaty soil 51 tinder dry Nicklin 51 Fermi telescope 51 Spitzer infrared spectrograph 51 interplanetary dust 51 papery skins 51 Pollen grains 51 infrared spectrograph 51 semidesert 51 yeti crab 51 Alternating fibers 51 ultramafic intrusives 51 chromosphere 51 toroid 51 impactor spacecraft 51 electron orbits 51 rimless baking sheet 51 oceanic crust 51 Lake Cheko 51 polygon patterns 51 PROCTOR Water 51 Comet Halley 51 WMAP satellite 51 sterile neutrino 51 moonlike 51 steam vents 51 Wooden planks 51 fossilized skulls 51 rootballs 51 horsehair plaster 51 solar neutrinos 51 varying thicknesses 51 telescope eyepiece 50 Lightly sprinkle 50 TRAVIS Water 50 hydrothermal fluid 50 Isidis Planitia 50 shallow foxholes 50 micropores 50 Vastitas Borealis 50 scrubby vegetation 50 airbursts 50 hydrologist Carolyn Driedger 50 orbits Saturn 50 Kuiper Belt Objects 50 honeycomb shaped 50 infrared spectra 50 clay subsoil 50 Ulysses spacecraft 50 basaltic magma 50 Arsia Mons 50 infalling gas 50 sedimentary rock 50 Globular clusters 50 micrometer sized 50 Zeta Ophiuchi 50 pumice stones 50 distant supernovas 50 polymer beads 50 Widely spaced 50 oblate spheroid 50 Perseus Cluster 50 Kamoamoa eruption 50 terra preta 50 flood basalts 50 protoplanetary disk 50 sticky goo 50 jellyroll pan 50 Svedhem 50 Tharsis Rise 50 orbited Jupiter 50 corrugations 50 pterosaur fossils 50 recrystallized 50 overhanging cliffs 50 volcanic cinders 50 Jupiter moon Io 50 isotherms 50 absorbs photons 50 micrometre scale 50 VB #b 50 planetary transits 50 eskers 50 planet Gliese #c 50 anorthosite 50 dark berry flavors 50 Magnetars 50 Chryse Planitia 50 glacial till 50 fungus spores 50 Receding floodwaters 50 Nili Fossae 50 onto ungreased cookie 50 Scorch marks 50 polymer nanocomposite 50 Shackleton crater 50 impactors 50 scanning tunneling microscope STM 50 magma boiling 50 Trojan asteroids 50 Plate tectonics 50 extinct volcanoes 50 Olympus Mons 50 sedimented 50 greased baking sheet 50 coated nanotubes 50 sanded smooth 50 crushed eggshells 50 Methane hydrate 50 lichen encrusted 50 permanently shadowed 50 AFM cantilever 50 nanosized 50 subhorizontal 50 exoplanetary 50 Whillans Ice Stream 50 Fashion Movie Reviews 50 cotton wool bud 50 Arches Cluster 50 interstellar molecules 50 Mathieu Amalric stumbles 50 ethylene tetrafluoroethylene 50 specular reflection 50 FORK Water 50 dynamical evolution 50 lunar maria 50 carbonaceous material 50 moist potting soil 50 erupting lava 50 Carefully pour 50 impermeable clay 50 scanning optical microscopy 50 KT boundary 50 quasicrystal 50 comet nucleus 50 cosmic cannibal 50 gyres 50 filamentary structures 50 Orion nebula 50 fluid inclusions 50 Borealis basin 50 zircons 50 featherlike 50 Beachcombers collect tarballs 50 microhabitats 50 near infrared fluorescence 50 boron nitride nanotubes 50 BROWNWOOD Water 50 mossy green 50 heatshield 50 Decomposing bodies 50 montmorillonite 50 anhydrite 50 Orbiter MRO 50 perchlorate salts 50 boron nitride 50 stromatolites 50 reddish orange color 50 basal till 50 coarse sand 50 IRC +# 50 Surface Composition Spectrometer 50 gravitational pulls 50 carbon isotopes 50 ferrous oxide 50 brecciated silicified 50 fatty blockages 50 silicified zone 50 asteroids 50 volcanic pumice 50 Knead gently 50 masonry sealer 50 Cassini flyby 50 tarlike 50 Sift flour baking powder 50 Gakkel Ridge 50 concentric layers 50 Spitzer infrared 50 hydrosphere 50 gooey sticky 50 Voyager probes 50 warty skin 50 vaporises 50 skulls ribs femurs 50 epitaxially 50 variably silicified 50 planetary embryos 50 element boron 50 Horsehead Nebula 50 rectangular prism 50 mollusk shells 50 galactic halo 50 felsic tuff 50 spectroscopic analysis 50 indentions 50 sulfidic 50 wooden skewer 50 pyrophyllite 50 Martian microbes 50 Pottery shards 50 volcanic magma 50 dermal layers 50 PIR mile oval 50 quartz pebbles 50 Mars Gusev Crater 50 thick viscous 50 alluvial sediments 50 parylene 50 Higgs bosons 50 lichen covered 50 X ray spectrometer 50 Asteroid Belt 50 oblongs 50 Ontario Lacus 50 pyroxene 50 supercontinents 50 POSSUM KINGDOM Water 50 solvent evaporates 50 liquid ethane 50 tilled soil 50 debris splintered wood 50 proto planetary disk 50 Slime molds 50 Trifid Nebula 50 brownie batter 50 isostatic rebound 50 geoglyphs 50 nanotubes nanowires 50 Saturnian system 50 sodium salts 50 CADDO Water 50 scanning electron microscopes 50 NASA rovers 50 underdrawing 50 Superheated 50 quartz boulders 50 Siberian permafrost 50 planets moons 50 cactus needles 50 Gisela Winckler 50 moons circling 50 troweling 50 pristinely preserved 50 receding glacier 50 moonlet 50 silcrete 50 astrobiologists 50 MARSIS radar 50 Caloris 50 exoplanets planets 50 spadeful 50 Saturn outermost 50 Spirit Mars rover 50 cornflake crumbs 50 cobalt atom 50 pollen particles