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200 03$aAn astrobiology strategy for the exploration of Mars /$fCommittee on an Astrobiology Strategy for the Exploration of Mars; Space Studies Board, Division on Engineering and Physical Sciences; Board on Life Sciences, Division on Earth and Life Studies; National Research Council of the National Academies
205   $a1st ed.
210   $aWashington, D.C. $cNational Academies Press$dc2007
215   $a1 online resource (131 p.)
300   $aDescription based upon print version of record.
311 08$a9780309108515 
311 08$a0309108519 
320   $aIncludes bibliographical references.
327   $a""Front Matter""; ""Preface""; ""Contents""; ""Executive Summary""; ""1 Introduction""; ""2 The Present State of Knowledge About Mars and Possible Life""; ""3 Biosignatures and Abiotic Chemistry""; ""4 Characteristics of Sites for Astrobiological Investigation""; ""5 Methodologies for Advancing Astrobiology""; ""6 Astrobiological Assessment of Current Mars Mission Architecture""; ""7 Planetary Protection for Mars Missions""; ""8 Findings and Recommendations""; ""Appendixes""; ""A Martian Features Mentioned in Text""; ""B Glossary""
327   $a""C Objectives for Developing a Further Understanding of Biosignatures""
330   $aThree recent developments have greatly increased interest in the search for life on Mars. The first is new information about the Martian environment including evidence of a watery past and the possibility of atmospheric methane. The second is the possibility of microbial viability on Mars. Finally, the Vision for Space Exploration initiative included an explicit directive to search for the evidence of life on Mars. These scientific and political developments led NASA to request the NRC (TM)s assistance in formulating an up-to-date integrated astrobiology strategy for Mars exploration. Among other topics, this report presents a review of current knowledge about possible life on Mars; an astrobiological assessment of current Mars missions; a review of Mars-mission planetary protection; and findings and recommendations. The report notes that the greatest increase in understanding of Mars will come from the collection and return to Earth of a well-chosen suite of Martian surface materials.
606   $aPlanetary science
607   $aMars (Planet)$xExploration
615  0$aPlanetary science.
676   $a919.9
712 02$aNational Research Council (U.S.).$bCommittee on an Astrobiology Strategy for the Exploration of Mars.
712 02$aNational Research Council (U.S.).$bSpace Studies Board.
712 02$aNational Research Council (U.S.).$bBoard on Life Sciences.
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996   $aAn astrobiology strategy for the exploration of Mars$94360671
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