Related by context. Frequent words. (Click for all words.) 58 geochemists 55 Tarduno 54 Lunine 54 Bottke 54 planetary geologist 53 physicists 53 Niels Bohr Institute 53 Martian meteorites 52 Filippenko 52 Sara Seager 52 Cassini imaging 52 astronomical observations 52 biogeochemist 52 neurobiologists 51 Melosh 51 Felisa Wolfe Simon 51 biophysicists 51 Nicolaus Copernicus 51 microlensing 51 A'Hearn 51 Pääbo 51 extrasolar 51 metagenomic 51 CfA 50 scientists 50 elemental composition 50 Geoffrey Marcy 50 DZero 50 Johannes Kepler 50 Planetary Science Institute 50 Credit NASA JPL 50 Ames Laboratory 50 Willerslev 50 Bruce Jakosky 50 STScI 50 Alfred McEwen 50 Priscu 50 JILA 49 VIRTIS 49 Galileo spacecraft 49 Tycho Brahe 49 Newswise Researchers 49 Biochemists 49 geochemist 49 Planetary Physics 49 paleobiologist 49 physicist 49 planetary scientist 49 astrobiologist 49 theoretical calculations 49 infrared spectroscopy 49 bioengineers 49 IceCube 49 numerical simulations 49 Samuel Ting 49 extrasolar planet 48 Steward Observatory 48 panspermia 48 WM Keck 48 Planetary Science 48 Xiang Zhang 48 Keck telescope 48 astrophysicists 48 Diviner 48 icy moons 48 boson 48 extragalactic 48 Carnegie Observatories 48 Astrophysicists 48 Cassini Huygens 48 Earthlike 48 Geoff Marcy 48 geological sciences 48 theoretical physicist 48 Planetary Science Letters 48 neutron scattering 48 researchers 48 astrobiologists 48 Electron Microscopy 47 Palaeontology 47 magma ocean 47 Bose Einstein condensates 47 oceanography professor 47 oxygen isotope 47 Earthlike planets 47 X ray telescopes 47 NMR spectroscopy 47 planet Uranus 47 Raizen 47 Spectroscopic 47 superlens 47 Planetary Laboratory 47 supercomputer simulations 47 Galaxy Evolution 47 National Astronomical Observatory 47 Paul Dirac 47 Steven Squyres 47 Bose Einstein condensate 47 astronomer 47 infrared mapping spectrometer 47 Meridiani