03526nam a2200433 a 4500 ebr10495466 CaPaEBR m u cr cn||||||||| 100619s2009 dcua sb 000 0 eng d 2010280362 0309130735 (pbk.) 9780309130738 CaPaEBR CaPaEBR (OCoLC)435772850 zma---- TL799.M3 N384 2009eb National Research Council (U.S.) Assessment of planetary protection requirements for Mars sample return missions [electronic resource] / National Research Council of the National Academies. Mars sample return missions Washington, D.C. : National Academies Press, c2009. x, 80 p. : ill. Includes bibliographical references. Introduction -- The potential for past or present habitable environments on Mars -- Advances in microbial ecology -- The potential for finding biosignatures in returned Martian samples -- The potential for large-scale effects -- Sample containment and biohazard evaluation -- Sample-receiving facility and program oversight. 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 missions were addressed in a 2006 National Research Council (NRC) book, Preventing the Forward Contamination of Mars. However, it has been more than 10 years since back-contamination issues were last examined. Driven by a renewed interest in Mars sample return missions, this book reviews, updates, and replaces the planetary protection conclusions and recommendations contained in the NRC's 1997 report Mars Sample Return: Issues and Recommendations. The specific issues addressed in this book include the following: the potential for living entities to be included in samples returned from Mars; scientific investigations that should be conducted to reduce uncertainty in the above assessment; the potential for large-scale effects on Earth's environment by any returned entity released to the environment; criteria for intentional sample release, taking note of current and anticipated regulatory frameworks; and the status of technological measures that could be taken on a mission to prevent the inadvertent release of a returned sample into Earth's biosphere. Electronic reproduction. Palo Alto, Calif. : ebrary, 2011. Available via World Wide Web. Access may be limited to ebrary affiliated libraries. Space flight to Mars Planning. Space microbiology. Mars surface samples. Microbial contamination Prevention. Mars (Planet) Exploration. Electronic books. local National Research Council (U.S.). Space Studies Board. National Research Council (U.S.). Division on Engineering and Physical Sciences. National Academies Press (U.S.) National Research Council (U.S.). Committee on the Review of Planetary Protection Requirements for Mars Sample Return Missions. ebrary, Inc. http://site.ebrary.com/lib/rucke/Doc?id=10495466 An electronic book accessible through the World Wide Web; click to view 241164 241164