Related by context. Frequent words. (Click for all words.) 56 olivine 52 isotopic composition 52 spherules 51 lavas 51 ejecta 51 solar nebula 51 basalts 50 regolith 50 meteorites 50 silicates 49 zircons 49 basaltic 49 anisotropy 49 Chicxulub 48 igneous 48 foraminifera 48 silicate 48 supercontinent 48 lithosphere 48 lunar soil 48 GPa 47 Haumea 47 nuclei 47 continental crust 47 abundances 47 iron oxides 47 isotopic 47 calcite 47 planetary nebula 47 cuprates 47 oceanic crust 47 microfossils 47 morphologies 46 Supplementary Fig 46 galaxy cluster 46 star Gliese 46 oxygen isotopes 46 globular cluster 46 magmatic 46 meteorite 45 planetary nebulae 45 supernova remnants 45 Nd 45 terrestrial planets 45 supernova remnant 45 GeV 45 subatomic particle 45 basalt 45 supernova explosion 45 stromatolites 44 brown dwarf 44 mtDNA 44 ppm U 44 striations 44 PrP 44 protein fragment 44 apatite 44 neutron star 44 Kuiper belt 44 copper Cu 44 dwarf galaxy 43 isomers 43 X ray emission 43 volcanism 43 crystal lattice 43 Itokawa 43 Meteorites 43 planetoid 43 OGLE 43 supernova explosions 43 meteoroids 43 accretion disk 43 galaxy clusters 43 solar corona 43 meteoroid 43 atomic nucleus 43 oxygen atom 43 magnetar 42 LB1 42 asteroid 42 elliptical galaxies 42 hydroxyl 42 Iapetus 42 radioactive decay 42 Precambrian 42 neutrino 42 Tc 42 Saturn rings 42 sedimentary rock 42 globular clusters 42 rhenium 42 HD #b [002] 42 salt crystals 42 Bose Einstein condensate 42 iridium 42 marine sediments 42 cometary 42 dwarf galaxies 42 gallium 42 deuterium 42 quark gluon plasma