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(Click for frequent words.) 71 concretions 68 phyllosilicates 67 stony meteorites 67 olivine 66 silicates 66 mineral hematite 66 lunar crust 66 jarosite 66 carbonate minerals 65 KT boundary 65 chondrules 64 ejecta 63 carbonaceous chondrites 63 hydrated minerals 63 meteor impacts 63 meteorite fragments 63 hematite mineral 63 basaltic rocks 62 vugs 62 igneous rocks 62 KBOs 62 basaltic 62 impactors 62 meteorite impacts 62 sedimentary deposits 62 martian meteorites 62 phyllosilicate 61 martian rocks 61 spinels 61 olivine crystals 61 cometary dust 61 Kuiper belt objects 61 merging galaxies 61 lunar soil 61 dirty snowballs 61 pyroxene 61 sulfate salts 61 osmium 61 olivine mineral 61 igneous rock 61 icy moons 61 foraminifera 60 magnetite crystals 60 protoplanet 60 lavas 60 tholins 60 goethite 60 carbonaceous chondrite 60 ALH# 60 circumstellar 60 zircons 60 silicate minerals 60 sterile neutrino 59 Martian meteorites 59 Meridiani 59 graphite whiskers 59 isotopic ratios 59 chondritic meteorites 59 planetary nebulae 59 olivine rich 59 meteoritic material 59 protoplanetary disks 59 meteorites 59 aragonite 59 carbonaceous material 59 magma ocean 59 lunar meteorites 59 plagioclase 59 nebular 59 chondrites 59 mineral olivine 59 cometary material 59 planetesimals 59 olivines 59 icy comets 58 planetesimal 58 crystallites 58 magmas 58 silicate mantle 58 post perovskite 58 basaltic rock 58 ferric oxides 58 carbonate globules 58 gray hematite 58 turbidites 58 solar nebula 58 komatiites 58 regolith 58 CAIs 58 isotope ratios 58 silicate rocks 58 ejecta blanket 58 isotopic compositions 58 oxygen isotopes 58 P/# A2 57 iron oxides 57 diatoms 57 asteroidal 57 pyrope garnet 57 permanently shadowed craters 57 lunar craters 57 crystalline silicates 57 volcanic lava flows 57 crustal rocks 57 oceanic crust 57 zinc sulfide 57 Mini TES 57 eclogite 57 calcite 57 magnetic monopoles 57 basalt volcanic 57 fluid inclusions 57 crossbedding 57 cryovolcanism 57 Oort Cloud 57 polar craters 57 elemental abundances 57 interstellar clouds 57 silicate 57 hydrothermally 57 silicate dust 57 silicate mineral 57 sediments deposited 57 tektites 57 forams 57 stromatolite 57 evaporites 57 volcanic basalt 57 anorthosite 57 mineralogical composition 57 icy crust 57 volcanic magma 57 sulfate minerals 56 moonlets 56 spectroscopic analysis 56 metamorphic rock 56 stromatolites 56 meteoroids 56 comets 56 comet nuclei 56 microplastics 56 silicon monoxide 56 sulphidic 56 APXS 56 NEAs 56 mineral apatite 56 presolar grains 56 isotope fractionation 56 rocky planets 56 paleomagnetic 56 ellipsoids 56 mantle plumes 56 ultramafic intrusives 56 moonlet 56 elemental composition 56 oxygen isotope 56 chondritic 56 supersymmetric particles 56 xenoliths 56 speleothems 56 volcanic tuff 56 Mars Squyres 56 Saturn rings 56 hematite 56 proto planetary disk 56 basalts 56 accretion disks 56 sedimentary rock 56 Mojzsis 56 calcite crystals 56 asthenosphere 56 Mossbauer spectrometer 56 Cretaceous Paleogene boundary 55 elongated orbits 55 noctilucent clouds 55 martian soil 55 terrestrial planets 55 planetary nebulas 55 globular clusters 55 hydrated silica 55 intrinsic brightness 55 clathrates 55 perchlorate salts 55 spiral nebulae 55 peridotites 55 flood basalts 55 Comet Tempel Tuttle 55 HII regions 55 nanoclusters 55 organic molecules 55 isotopic composition 55 calcic 55 Oort cloud 55 Palaeozoic sedimentary 55 Chicxulub 55 komatiitic 55 marine sediments 55 supermassive stars 55 recrystallized 55 globulars 55 GJ#b 55 Chicxulub impact 55 aerosol particles 55 interstellar dust grains 55 circumstellar disk 55 nanobubbles 55 protoplanetary disk 55 carbonaceous meteorites 55 magnetars 55 gravitational lenses 55 gabbros 55 ejecta plume 55 planemos 55 solidified lava 55 electron density 55 lunar magma 55 exosphere 55 Gusev crater 55 sulfur isotope 55 protostars 55 Kuiper Belt Objects 55 planetary geologists 55 GJ #b [002] 55 interplanetary dust 55 carbon spherules 55 primitive meteorites 55 carbon isotopes 55 landforms 55 spheroidal 55 nanosized 55 kimberlite breccia 55 Bedout 55 HiRISE image 55 protoplanets 55 diabase 55 microscopic crystals 55 Nili Fossae 54 hornblende 54 Compact Reconnaissance Imaging Spectrometer 54 cometary 54 haematite 54 proplyds 54 comet McNaught 54 eudialyte 54 comets asteroids 54 Martian craters 54 Martian rocks 54 extrasolar planetary systems 54 Mini SAR 54 yardangs 54 Murchison meteorite 54 SN#A 54 Elysium Planitia 54 mineralized mafic 54 pyroclastics 54 sulphates 54 striations 54 lunar regolith 54 Hellas Basin 54 lapilli 54 Kuiper belt 54 continental crust 54 lithosphere 54 zodiacal dust 54 coccolithophores 54 abundances 54 Allende meteorite 54 trimers 54 COROT 7b 54 silicic 54 ULIRGs 54 aluminum silicate 54 spherical particles 54 quartz grains 54 binary asteroid 54 hydrothermal fluids 54 intrusive granitic 54 Io volcanoes 54 magnetosphere 54 Syrtis Major 54 Kuiper Belt objects 54 AGNs 54 seafloor sediment 54 geochemical signature 54 concretion 54 icosahedral 54 meteoritic 54 wrinkle ridges 54 weakly interacting 54 meteoroid 54 scarps 54 zircon crystals 54 cratons 54 clasts 54 Martian meteorite 54 polar vortex 54 cherts 54 REE enriched 54 spherical objects 54 geochemically 54 granitoids 54 McMurdo Dry Valleys 54 grabens 54 lobate scarps 54 supernova explosion 54 Jupiter moon Io 54 molten droplets 54 amorphous calcium carbonate 54 quartz feldspar porphyry intrusive 54 SN #A 54 carbonatized 54 gaseous planet 54 subglacial 54 micrometre sized 54 geoneutrinos 54 sulfide minerals 54 ilmenites 54 Mössbauer 54 Quadrantid 54 gravitationally bound 54 galaxy clusters 54 quartz feldspar porphyries 54 Valles Marineris 54 magma chamber 54 Higgs bosons 54 Stromatolites 53 comet dust 53 molten magma 53 isotopic signature 53 Ontario Lacus 53 spectral fingerprints 53 overlying layers 53 ionized hydrogen 53 collisional 53 chrome diopsides 53 strangelets 53 nucleation 53 tetrahedral 53 crustal 53 gravitational tugs 53 quartz crystals 53 melt inclusions 53 craters 53 pyrope garnets 53 superheavy elements 53 mineralized boulders 53 pnictides 53 tonalite 53 halite 53 gaseous planets 53 red supergiants 53 secondary chalcocite 53 planetary orbits 53 quasicrystals 53 amorphous silica 53 oxidized iron 53 gravitational interactions 53 extrusive 53 morphologies 53 Pluto Charon 53 metamorphic rocks 53 retrograde orbit 53 Gravitational waves 53 felsic rocks 53 comet nucleus 53 distant supernovae 53 granite gneiss 53 heavily cratered 53 microfossils 53 lobate 53 diatremes 53 evaporite minerals 53 Aram Chaos 53 uraninite 53 isotopic 53 sunlike stars 53 spherically symmetric 53 chromitite layers 53 nuclei 53 planetary nebula 53 zeolites 53 Ohmoto 53 KIMs 53 rocks 53 pyrope 53 clastic sediments 53 lunar highlands 53 Neutron stars 53 inhomogeneities 53 jovian 53 micro meteorites 53 Earthly contamination 53 corundum 53 evaporite deposits 53 Fe Mn 53 basaltic lava 53 graupel 53 spectroscopically 53 Antarctic Dry Valleys 53 lamprophyre 53 galactic disk 53 Bose Einstein condensates 53 mud volcanoes 53 Cabeus 53 metasediment 53 Chicxulub crater 53 starburst galaxies 53 subduction zones 53 iron sulfate 53 Venusian atmosphere 53 eclogitic 53 nanohorns 53 tuffaceous rocks 53 Fomalhaut b 53 Galilean satellites 53 infrared spectra 53 hematite goethite 53 peridotitic 53 astrobiological 53 infalling 53 Enceladus 53 lithium bearing brines 53 meteorite 53 cosmic microwave background 52 iron sulfide 52 sulfides 52 Candor Chasma 52 neutron star 52 branes 52 helium atoms 52 asteroids 52 Corot 7b 52 strange quarks 52 sedimentary layers 52 iridium layer 52 exhalite 52 superposed 52 hydroxyl molecules 52 called lobate scarps 52 asteroids comets 52 intensely oxidized 52 peridotite 52 nucleate 52 electron neutrino 52 dense clumps 52 Globular clusters 52 permanently shadowed regions 52 Reiner Gamma 52 Mini Thermal Emission 52 hydrothermal magnetite 52 geochronology 52 petrographic 52 finely disseminated 52 diffraction patterns 52 arsenopyrite pyrite 52 rhyolites 52 neutral mass spectrometer 52 supergene enrichment 52 spectrometer readings 52 Kambalda style 52 circular depressions 52 tau neutrinos 52 massive sulphide horizons 52 silicate crystals 52 greisen 52 subsurface ocean 52 magnetite BIF 52 Terra Meridiani 52 magnetite grains 52 comet 52 submicrometer 52 magmatic 52 galactic cosmic rays 52 depositional environment 52 Upsilon Andromedae 52 mineral assemblages 52 noble gases 52 Kuiper Belt 52 mineralized intrusive 52 type Ia supernovae 52 variably silicified 52 mafic intrusion 52 millisecond pulsars 52 breccia pipes 52 Comet Halley 52 Earthlike 52 REE bearing 52 interstellar grains 52 chondrite 52 HiRISE images 52 atmospheric aerosols 52 Mössbauer spectrometer 52 ionized particles 52 superlens 52 microbialites 52 dimming starlight 52 igneous 52 lamellae 52 spacecraft flyby 52 samarium 52 chemical composition 52 sulphide deposits 52 volcanoclastic 52 plutons 52 Saturn moons 52 supernova remnants 52 diorites 52 Type Ia 52 amphibole 52 Fe Mg 52 volcanic gases 52 Einstein relativity theory 52 antineutrinos 52 magma chambers 52 Arabia Terra 52 reionization 52 silica carbonate 52 pyrophyllite 52 electron neutrinos 52 antihelium 52 volcanism 52 galactic mergers 52 Sedimentary rocks 52 X ray emission 52 melanosomes 52 loess 52 gravitational lens 52 cosmic strings 52 GJ #b [001] 52 supermassive 52 leachability 52 carbonatites 52 tiny specks 52 nanobacteria 52 BIFs 52 distant quasars 52 Wassonite 52 hypervelocity stars 52 super Earths 52 pyrite marcasite 52 montmorillonite 52 Saharan dust 52 andesitic rocks 52 deformational 52 comet particles 52 pyritized 52 Ring Nebula 52 phytoliths 52 Jupiter moons Europa 52 compressional 52 Martian dust 52 YORP effect 52 finely layered 52 chrome diopside 52 planetoids 52 volcanic breccia 52 calcareous 52 luminous galaxies 52 naturally occurring mineral 52 illite 52 microdiamonds 51 chromites 51 moonquakes 51 Lapen 51 interstellar medium 51 carbonaceous 51 supernova explosions 51 magnetospheric 51 asteroid impacts 51 galaxy redshift 51 nanopillars 51 isostatic rebound 51 sulphide minerals 51 cinder cones 51 particles 51 Endurance crater 51 spectral signatures 51 planetary surfaces 51 elliptical galaxies 51 accretion disk 51 prokaryotes 51 potassium feldspar 51 Wolf Rayet star 51 quartz feldspar 51 glacial till 51 volcanic sediments 51 moon Mimas 51 blue supergiant 51 Saturn Enceladus 51 calderas 51 gravitational pulls 51 astrobiologists 51 iridium 51 magmatic sulphide 51 radioactive nuclei 51 alteration halos 51 galactic clusters 51 Hubble observations 51 Cretaceous sandstones 51 spacetime 51 anisotropic 51 crystal lattice 51 nanodiamonds 51 polar layered 51 RS Ophiuchi 51 nucleons 51 planets asteroids 51 ferrous oxide 51 smoothest flattest 51 Scheila 51 Martian gullies 51 Amundsen Sea 51 galena pyrite 51 magnetic susceptibility 51 magnetic anomalies 51 pyrrhotite pyrite 51 Caloris 51 Quaoar 51 rhyolite domes 51 sterile neutrinos 51 crustal thickness 51 wavefunction 51 mesons 51 Type Ia supernova 51 gneisses 51 tectonic activity 51 dacite 51 gabbro intrusive 51 stockwork veins 51 SN #C 51 gabbroic 51 perfectly spherical 51 Dwarf galaxies 51 microbial organisms 51 planets orbits 51 gravitational lensing 51 silicate grains 51 filamentary structure 51 Hanny Voorwerp 51 ultramafic rock 51 sulfur isotopes 51 Milky Way halo 51 otoliths 51 shadowed craters 51 extrasolar 51 matter antimatter asymmetry 51 Kounaves 51 fossilized shells 51 salt crystals 51 Saturn magnetosphere 51 electrons orbiting 51 stratiform 51 sediments 51 surficial 51 Methane hydrate 51 Sinus Meridiani 51 Omega Centauri 51 vortices 51 lava tubes 51 kaolinite 51 organic frameworks MOFs 51 Kuiper belt object 51 cirrus clouds 51 hydrothermal activity 51 planktonic foraminifera 51 sulfide deposits 51 felsic tuff 51 kaons 51 seafloor sediments 51 galactic cores 51 calc alkaline 51 X ray spectrometer 51 Tagish Lake meteorite 51 biominerals 51 microcrystals 51 Chicxulub Crater 51 hydrosphere 51 kimberlitic bodies 51 brachiopods 51 chlorite altered 51 apatite 51 anomalous concentrations 51 felsic intrusives 51 exoplanetary 51 Henize #-# 51 carbon cenospheres 51 copper sulfide 51 sulfate aerosols 51 microfossil 51 shear veins 51 helium nuclei 51 NASA Chandra 51 pegmatitic 51 submillimeter galaxies 51 habitable zones 51 supercontinent 51 bryozoans 51 crystalline lattice 51 cosmic collisions 51 geochemists 51 thermal diffusivity 51 quartz stringers 51 gossanous 51 silica particles 51 cesium atoms 51 neutralinos 51 X ray wavelengths 51 interstellar cloud 51 arsenate 51 Felsic 51 ionized gas 51 Hot Jupiters 51 Dumbbell Nebula 51 pyrite pyrrhotite chalcopyrite 51 ignimbrites 51 infrared spectrometer 51 pediment gravels 51 volcanogenic 51 Neoproterozoic 51 circumstellar disks 51 calcium carbonate 51 andesitic volcanic rocks 51 faint galaxies 51 cosmological distances 51 ionised gas 51 GFAJ 1 51 claystone 51 airbursts 51 type Ia supernova 51 element osmium 51 NASA Wilkinson Microwave 51 presolar 51 microbial mats 51 dunite 51 Earthlike planets 51 Milky Way Galaxy 51 titanium zirconium 51 karstic 51 anomalies coincident 51 detrital 51 garnets 51 magnesium sodium potassium 51 carbon isotope ratios 51 kimberlitic 51 ferruginous 51 azurite 51 relativistic jets 51 galaxy formation 50 greywackes 50 evaporite 50 G# garnets 50 comb jellies 50 carnotite 50 polygonal shapes 50 geochemical assay 50 mid latitudes 50 thrust faulting 50 IR spectra 50 explosive volcanism 50 phlogopite 50 muons 50 Martian subsurface 50 photosynthetic organisms 50 ferric oxide 50 lateritic 50 stalactite 50 Dry Valleys 50 OMEGA instrument 50 Wilkinson Microwave Anisotropy Probe 50 shear modulus 50 quartz veins containing 50 outer crust 50 protoplanetary disc 50 lanthanides 50 dynamical processes 50 dwarf galaxies 50 vanadium oxide 50 buckyballs 50 lensing galaxy 50 Cabeus crater 50 crystals 50 meteoroid impacts 50 reddish color 50 solitons 50 gravitational waves 50 heterogeneities 50 volcaniclastic kimberlite 50 paragneiss 50 uranium thorium 50 WASP #b 50 siderite 50 erosional 50 sulfidic 50 sulfosalts 50 epidote 50 chalcopyrite bornite 50 gneissic rocks 50 sedimentary strata 50 superfluid 50 pillow lava 50 pyrochlore 50 airglow 50 microscopic specks 50 chromosphere 50 Itokawa 50 colloidal crystals 50 AB Aurigae 50 graphene sheet 50 Outcrops 50 isotopic signatures 50 radioactive decay 50 gravity anomalies 50 absorption spectra 50 carbides 50 galactic collisions 50 nanospheres 50 Earth asteroids NEAs 50 chromitite 50 colluvial 50 barium titanate 50 Antennae Galaxies 50 biogenic 50 isotope composition 50 carbonate veins 50 meteorite bombardment 50 basaltic magma 50 antiferromagnets 50 intraplate 50 hematite magnetite 50 graphane 50 SWNTs 50 komatiite 50 quartz alunite alteration 50 allanite 50 phosphorus atoms 50 desorbed 50 lowermost mantle 50 diffraction pattern 50 gabbroic rocks 50 strange quark 50 stratospheric clouds 50 biotite rich 50 landmasses 50 graphene sheets 50 silicon atoms 50 J# +# [002] 50 volcanic rock 50 bilayer 50 supersolid 50 galaxies collide 50 pyritic quartz 50 quasicrystal 50 Banded Iron Formation 50 gravitational radiation 50 baryons 50 proto planetary disks 50 quark gluon plasma 50 anisotropy 50 globular cluster 50 undersea volcanoes 50 dolomites 50 microcracks 50 Stardust comet 50 methanogens 50 metal zonation 50 novas 50 metamorphism 50 pillow lavas 50 Lake Vostok 50 kimberlitic material 50 mineralized outcrops 50 molten rock 50 carbonyl sulfide 50 monazite 50 boron nitride 50 crystal lattices 50 spatially resolved 50 unweathered 50 Shackleton crater 50 basalt 50 polar mesospheric clouds 50 neutrino 50 quasars 50 SDSS II 50 abrasion tool 50 eluvial 50 steam vents 50 saprolitic 50 micrometer sized 50 phonons 50 volcanic aerosols 50 spherical particle 50 polygon patterns 50 altered felsic 50 mafic rocks 50 active galactic nuclei 50 Galileo spacecraft 50 Grillmair 50 microscopic fossils 50 smallest exoplanet 50 granitic rocks 50 strontium titanate 50 neodymium Nd 50 alternating layers 50 amphibolite 50 sulfide veins 50 smoothest flattest spot 50 spectrographic 50 muon neutrino 50 mineralogy 50 calcium carbonates 50 electron pairing 50 spectroscopic measurements 50 toroid 50 polarimetry 50 supergene 50 vuggy 50 argillic altered 50 calcium sulphate 50 granodiorites 50 aerogels 50 Mars Meridiani Planum 50 retrograde orbits 50 dwarf galaxy 50 supercells 50 Martian volcanoes 50 lunar meteorite 50 binary asteroids 50 kimberlitic indicator minerals 50 ellipsoid 50 spectral fingerprint 50 particles WIMPs 50 Type 1a supernovae 50 amphipods 50 tungsten isotopes 50 silica spheres 50 sedimentary rocks 50 sulfide bearing 50 orpiment 50 biotite 50 interstellar dust 50 Moessbauer spectrometer 50 carbonaceous chondrite meteorites 50 brittle deformation 50 ocean eddies 50 photochemical reactions 50 synchrotron x ray 50 permanently shadowed 50 GRBs 50 coprolite 50 lacustrine 50 chrysocolla 50 Gliese #g 50 W boson 50 sandstone intervals 50 chlorophyll molecules 50 supergiant stars 50 stockwork veining 50 moondust 50 electromagnetic anomalies 50 alluvial sediments 50 Comet 9P/Tempel 1 50 NanoSIMS 50 outcrop exposures 50 microstructures 50 micelles 50 HD#b 50 bearing kimberlite 50 Siberian Traps 50 silcrete 50 SNR #-#.# 50 lunar equator 50 mineralizations 50 metasomatic 50 lithospheric 50 intrusive breccias 50 ultraviolet wavelengths 50 SN #gy 50 pyrites 50 Martian equator 50 feldspar 50 FeO 49 sulphide mineral 49 carbonate sediments 49 Higgs particle 49 particle sizes 49 quartz tourmaline veining 49 Noctilucent clouds 49 layered bedrock 49 cementite 49 Cretaceous Tertiary boundary 49 rubbly 49 nucleosynthesis 49 spectroscopic 49 Fullerenes 49 biosignatures 49 prebiotic molecules 49 Darnley Bay gravity 49 VTEM conductor