Assessment of planetary protection requirements for Mars sample return missions / Committee on the Review of Planetary Protection Requirements for Mars Sample Return Missions ; Space Studies Board ; Division on Engineering and Physical Sciences ; National Research Council of the National Academies.
"NASA maintains a planetary protection policy to avoid the forward biological contamination of other worlds by terrestrial organisms, and back biological contamination of Earth from the return of extraterrestrial materials by spaceflight missions. Forward-contamination issues related to Mars mi...
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Washington, D.C. :
National Academies Press,