Related by context. Frequent words. (Click for all words.) 59 planetary geologist 55 Eric Rignot 55 geochemists 53 geochemist 52 Niels Bohr Institute 52 Astrophysicist 52 planetary scientist 52 chemical oceanographer 51 Planetary Physics 50 CIRES 50 atmospheric physicist 50 journal Geology 50 journal Icarus 50 Rignot 50 isotopic composition 49 oxygen isotope 49 petrology 49 Planetary Laboratory 48 biological oceanographer 48 geological sciences 48 Carnegie Observatories 48 WM Keck 48 Coauthor 48 CfA 48 Lamont Doherty Earth 47 atmospheric chemist 47 geoscientist 47 isotope ratios 47 journal Geophysical Research 47 HHMI investigator 47 Bottke 47 oceanography professor 47 Planetary Science Institute 47 Xiang Zhang 46 maser 46 Caltech 46 Nature Geoscience 46 University Lamont Doherty 46 CRISM 46 journal Nature Geoscience 46 Keck Observatory 46 Technology Caltech 46 geomorphology 46 PhD postdoctoral fellow 46 Santa Barbara UCSB 46 biogeochemistry 46 USGS geologist 45 WASP #b 45 oxygen isotopes 45 geochemistry 45 Oral Biology 45 Cassini radar 45 Jonathan Overpeck 45 Filippenko 45 Philip Klotzbach 45 Computer simulations 45 science journal Nature 45 neuropathologist 45 Cassini imaging 45 Oceanographer 45 National Astronomical Observatory 45 subglacial 44 planetary sciences 44 biological anthropology 44 numerical simulations 44 Zachos 44 Rosenstiel School 44 Roger Penrose 44 NCAR scientist 44 Steward Observatory 44 meteorite impacts 44 paleoanthropologist 44 Martian dust 44 biophysicist 44 Diviner 44 Oceanography Centre 44 astrobiologists 44 atmospheric chemistry 44 Meridiani 44 neurobiologist 44 supercomputer simulations 44 Robock 44 Lunine 44 Snowball Earth 44 paleoclimatologist 44 Scripps Institution 43 CoRoT 7b 43 Woods Hole Oceanographic 43 Felisa Wolfe Simon 43 Roger Tsien 43 Willerslev 43 Alfred McEwen 43 magmas 43 sediment cores 43 Chicxulub impact 43 Utah Seismograph Stations 43 spherules 43 Zoback 43 astrobiologist 43 Ken Caldeira 43 Nasa Jet Propulsion