LEADER 04324nam 2200649Ia 450 001 9910969856903321 005 20251117114851.0 010 $a9786610179800 010 $a9780309167932 010 $a0309167930 010 $a9781280179808 010 $a1280179805 010 $a9780309508339 010 $a0309508339 035 $a(CKB)111069351132924 035 $a(EBL)3375848 035 $a(SSID)ssj0000106771 035 $a(PQKBManifestationID)11131090 035 $a(PQKBTitleCode)TC0000106771 035 $a(PQKBWorkID)10132540 035 $a(PQKB)11703414 035 $a(MiAaPQ)EBC3375848 035 $a(Au-PeEL)EBL3375848 035 $a(CaPaEBR)ebr10046898 035 $a(CaONFJC)MIL17980 035 $a(OCoLC)923259357 035 $a(Perlego)4735755 035 $a(BIP)10291215 035 $a(EXLCZ)99111069351132924 100 $a20040211d2003 my 0 101 0 $aeng 135 $aurcn||||||||| 181 $ctxt 182 $cc 183 $acr 200 00$aAssessment of Mars science and mission priorities /$fCommittee on Planetary and Lunar Exploration, Space Studies Board, Division on Engineering and Physical Sciences, National Research Council of the National Academies 205 $a1st ed. 210 $aWashington, D.C. $cNational Academies Press$dc2003 215 $a1 online resource (145 p.) 300 $aDescription based upon print version of record. 311 08$a9780309089173 311 08$a0309089174 320 $aIncludes bibliographical references. 327 $a""Front Matter""; ""Preface""; ""Contents""; ""Executive Summary""; ""1 Introduction""; ""2 Interior and Crustal Structure and Activity""; ""3 Geochemistry and Petrology""; ""4 Stratigraphy and Chronology""; ""5 Surface Processes and Geomorphology""; ""6 Ground Ice, Groundwater, and Hydrology""; ""7 Life, Fossils, and Reduced Carbon""; ""8 Lower Atmosphere and Meteorology""; ""9 Climate Change""; ""10 Upper Atmosphere, Ionosphere, and Solar Wind Interaction""; ""11 Rationale for Sample Return""; ""12 Assessment of the Mars Exploration Program""; ""13 Conclusions""; ""Appendixes"" 327 $a""Appendix A The NASA Mars Exploration Program""""Appendix B Compilation of Recommendations Concerning Mars Exploration Made by COMPLEX and Other Advisory Groups""; ""Appendix C Acronyms"" 330 $aWithin the Office of Space Science of the National Aeronautics and Space Administration (NASA) special importance is attached to exploration of the planet Mars, because it is the most like Earth of the planets in the solar system and the place where the first detection of extraterrestrial life seems most likely to be made. The failures in 1999 of two NASA missions-Mars Climate Orbiter and Mars Polar Lander-caused the space agency's program of Mars exploration to be systematically rethought, both technologically and scientifically. A new Mars Exploration Program plan (summarized in Appendix A) was announced in October 2000. The Committee on Planetary and Lunar Exploration (COMPLEX), a standing committee of the Space Studies Board of the National Research Council, was asked to examine the scientific content of this new program. This goals of this report are the following: -Review the state of knowledge of the planet Mars, with special emphasis on findings of the most recent Mars missions and related research activities; -Review the most important Mars research opportunities in the immediate future; -Review scientific priorities for the exploration of Mars identified by COMPLEX (and other scientific advisory groups) and their motivation, and consider the degree to which recent discoveries suggest a reordering of priorities; and -Assess the congruence between NASA's evolving Mars Exploration Program plan and these recommended priorities, and suggest any adjustments that might be warranted. 607 $aMars (Planet)$xExploration 607 $aMars (Planet)$xExploration$xGovernment policy$zUnited States 676 $a523.430723 712 02$aNational Research Council (U.S.).$bCommittee on Planetary and Lunar Exploration. 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910969856903321 996 $aAssessment of Mars science and mission priorities$94365502 997 $aUNINA