title: The rocky road to panspermia.
authors.affiliation: Lunar and Planetary Laboratory, University of Arizona, Tucson 85721, USA.
authors.forename: H J
authors.initials: HJ
authors.lastname: Melosh
mesh_terms: D001272:Atmosphere; D018534:Earth, Planet; D005118:Extraterrestrial Environment; D055593:Geological Phenomena; D005844:Geology; D018535:Mars; D019110:Meteoroids; D018543:Minor Planets; D008962:Models, Theoretical; D012988:Soil Microbiology