LEADER 04590nam 2200769Ia 450 001 9910971064103321 005 20251117084739.0 010 $a9780309256780 010 $a030925678X 010 $a9781283636148 010 $a128363614X 010 $a9780309256766 010 $a0309256763 035 $a(CKB)2670000000241228 035 $a(EBL)3379000 035 $a(SSID)ssj0000665816 035 $a(PQKBManifestationID)11422012 035 $a(PQKBTitleCode)TC0000665816 035 $a(PQKBWorkID)10646742 035 $a(PQKB)11603440 035 $a(MiAaPQ)EBC3379000 035 $a(Au-PeEL)EBL3379000 035 $a(CaPaEBR)ebr10594225 035 $a(CaONFJC)MIL394860 035 $a(OCoLC)815518281 035 $a(Perlego)4737929 035 $a(BIP)53855248 035 $a(BIP)39416912 035 $a(EXLCZ)992670000000241228 100 $a20120516d2012 uy 0 101 0 $aeng 135 $aurcn||||||||| 181 $ctxt 182 $cc 183 $acr 200 00$aAssessment of planetary protection requirements for spacecraft missions to icy solar system bodies /$fCommittee on Planetary Protection Standards for Icy Bodies in the Outer Solar System Space Studies Board, Division on Engineering and Physical Sciences, National Research Council of the National Academies 205 $a1st ed. 210 $aWashington, D.C. $cNational Academies Press$dc2012 215 $a1 online resource (95 p.) 300 $aDescription based upon print version of record. 311 08$a9780309256759 311 08$a0309256755 320 $aIncludes bibliographical references. 327 $a""Front Matter""; ""Preface""; ""Contents""; ""Summary""; ""1 Current Status of Planetary Protection Policies for Icy Bodies""; ""2 Binary Decision Trees""; ""3 Hierarchical Decisions for Planetary Protection""; ""4 A Geophysical Perspective and Inventory of Habitable Environments on Icy Bodies""; ""5 Microbial Metabolism and Physiology""; ""6 Necessary Research""; ""Appendixes""; ""Appendix A: Letter Requesting This Study""; ""Appendix B: Current and Prospective Missions to Icy Bodies of Astrobiological Interest"" 327 $a""Appendix C: Event Sequence Diagram for the Determination of Planetary Protection Measures for Missions to Icy Bodies""""Appendix D: Committee and Staff Biographical Information""; ""Appendix E: Glossary and Abbreviations"" 330 $aNASA's exploration of planets and satellites during the past 50 years has led to the discovery of traces of water ice throughout the solar system and prospects for large liquid water reservoirs beneath the frozen ICE shells of multiple satellites of the giant planets of the outer solar system. During the coming decades, NASA and other space agencies will send flybys, orbiters, subsurface probes, and, possibly, landers to these distant worlds in order to explore their geologic and chemical context. Because of their potential to harbor alien life, NASA will select missions that target the most habitable outer solar system objects. This strategy poses formidable challenges for mission planners who must balance the opportunity for exploration with the risk of contamination by Earth's microbes, which could confuse the interpretation of data obtained from these objects. The 2000 NRC report Preventing the Forward Contamination of Europa provided a criterion that was adopted with prior recommendations from the Committee on Space Research of the International Council for Science. This current NRC report revisits and extends the findings and recommendations of the 2000 Europa report in light of recent advances in planetary and life sciences and, among other tasks, assesses the risk of contamination of icy bodies in the solar system. 606 $aPlanets$xExploration 606 $aPlanets$xExploration$xProtection 606 $aPlanets$xWater 606 $aMicrobial metabolism 606 $aMicroorganisms$xPhysiology 607 $aOuter space$xExploration 607 $aOuter space$xExploration$xProtection 615 0$aPlanets$xExploration. 615 0$aPlanets$xExploration$xProtection. 615 0$aPlanets$xWater. 615 0$aMicrobial metabolism. 615 0$aMicroorganisms$xPhysiology. 676 $a616.980214 712 02$aNational Academies Press (U.S.) 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910971064103321 996 $aAssessment of planetary protection requirements for spacecraft missions to icy solar system bodies$94364802 997 $aUNINA