Related by context. Frequent words. (Click for all words.) 59 photochemistry 55 nanobubbles 55 extrasolar 54 isotope ratios 53 Lunine 52 ultracold atoms 52 Varki 51 macromolecule 51 Bottke 51 Vosshall 51 nanobacteria 51 ultracold 51 ultraviolet wavelengths 50 oxygen isotope 50 biological molecules 50 chemical reactivity 50 aerosol particles 50 methanogens 50 Alivisatos 50 infrared spectroscopy 49 masers 49 planetary atmospheres 49 biomolecule 49 Felisa Wolfe Simon 49 Melosh 49 metabolomic 49 silicates 49 chondrules 49 ribozyme 48 icy moons 48 oxygen isotopes 48 carbonate minerals 48 isotopic composition 48 elemental composition 48 bacterial enzyme 48 Nealson 48 nanosized 48 heparan sulfate 48 Rignot 48 geochemists 48 biogenic 48 quantum tunneling 47 Sinervo 47 astrobiologists 47 atmospheric chemistry 47 magma ocean 47 galactic cosmic rays 47 protein fragment 47 Bose Einstein condensates 47 Poinar 47 fullerene 47 Martian meteorites 47 abundances 47 Epel 47 prokaryotes 47 clathrates 47 Computer simulations 47 Klotho 47 jarosite 47 Melott 46 plasmon 46 Tarduno 46 Lovley 46 spherules 46 Spectroscopic 46 nematode worms 46 VIRTIS 46 diffusive 46 Brownian motion 46 ejecta 46 nanoporous 46 Fierer 46 Priscu 46 polyamines 46 Brusatte 46 Hawking radiation 46 ribozymes 46 cofactors 46 Robock 46 porphyrin 46 isotopic 46 biophysicists 46 moon Enceladus 46 Niels Bohr Institute 46 Sara Seager 46 Getzenberg 46 researchers 46 planetary scientist 46 journal Icarus 46 biogeochemistry 45 supercomputer simulations 45 trimer 45 Huffnagle 45 ionize 45 abiotic 45 Willerslev 45 amphipods 45 WASP #b 45 physicochemical 45 excitons 45 biogeochemical