title: The human-microbe metaorganism, evolution and extraterrestrial colonization.
authors.forename: Leonard A
authors.initials: LA
authors.lastname: Mermel
mesh_terms: D018480:Astronauts; D005075:Biological Evolution; D005118:Extraterrestrial Environment; D006112:Gravitation; D006801:Humans; D064307:Microbiota; D014893:Weightlessness
keywords: astronaut; microbiome; microgravity