05313nam 2200661Ia 450 991081222210332120240416234356.01-280-21484-897866102148460-309-57368-80-585-16837-7(CKB)111004366657418(OCoLC)568172022(CaPaEBR)ebrary10056777(SSID)ssj0000387481(PQKBManifestationID)11272435(PQKBTitleCode)TC0000387481(PQKBWorkID)10401823(PQKB)11539015(MiAaPQ)EBC3376504(Au-PeEL)EBL3376504(CaPaEBR)ebr10056777(OCoLC)923264071(EXLCZ)9911100436665741820040925d1988 my 0engurcn|||||||||txtccrSpace science in the twenty-first century imperatives for the decades 1995 to 2015 : report of the study steering group /Space Science Board, Commission on Physical Sciences, Mathematics, and Resources, National Research Council1st ed.Washington, D.C. National Academy Press19881 online resource (106 p.) Support for this project was provided by Contract NASW-3482 between the National Academy of Sciences and the National Aeronautics and Space Administration.0-309-03838-3 Space Science in the Twenty-First Century: Imperatives for the Decades 1995 to 2015 -- Copyright -- Preface -- Contents -- 1 Introduction -- 2 Earth Sciences: A Mission to Planet Earth -- BACKGROUND -- EARTH AS A GLOBAL SYSTEM -- SCIENTIFIC THEMES -- RECOMMENDED PROGRAM: POST-1995 -- THE ROLE OF NASA IN EARTH SCIENCES -- NATIONAL COORDINATION -- CONCLUSIONS -- 3 Planetary and Lunar Exploration -- BACKGROUND -- GOALS OF PLANETARY EXPLORATION -- ACHIEVEMENTS OF PLANETARY EXPLORATION -- FUTURE PLANETARY EXPLORATION-A BALANCED PLANETARY PROGRAM -- Prospective Pre-1995 Missions -- Recommended Program: Post-1995 -- Terrestrial Planets -- Recommended Missions -- Outer Planets and Satellites -- Recommended Missions -- Primitive Bodies -- Recommended Missions -- Other Planetary Systems -- Recommended Missions -- A Mars Focus -- Recommended Missions -- CONCLUSION -- 4 Solar System Space Physics -- BACKGROUND -- THE SUN, SOLAR PROCESSES, AND VARIABILITY -- THE SUN-EARTH SYSTEM, THE MAGNETOSPHERE, AND THE AURORA -- THE UPPER ATMOSPHERE -- MAGNETOSPHERES OF OTHER PLANETS AND COMETS -- CONNECTIONS OF SOLAR SYSTEM SPACE PHYSICS TO LABORATORY AND ASTROPHYSICAL PLASMAS -- NATURE OF THE FIELD -- CURRENT FLIGHT PROJECTS -- PROSPECTIVE PRE-1995 MISSIONS -- RECOMMENDED PROGRAM: POST-1995 -- CONCLUSIONS -- 5 Astronomy and Astrophysics -- BACKGROUND -- MAJOR SCIENTIFIC QUESTIONS -- THE EVOLUTION OF SPACE ASTRONOMY -- RECOMMENDED PROGRAM: POST-1995 -- Imaging Interferometer (Optical and Infrared) -- The Large Deployable Reflector (LDR) -- An 8-to 16-m Telescope for Ultraviolet, Optical, and Infrared Wavelengths -- X-Ray Instruments of Large Area and Throughput -- Gamma-Ray Telescopes -- Cosmic-Ray Research -- CROSS-LINKS WITH OTHER DISCIPLINES -- CONCLUSIONS -- 6 Fundamental Physics and Chemistry: Relativistic Gravitation and Microgravity Science -- OVERVIEW.A. RELATIVISTIC GRAVITATION -- Background -- Tests of General Relativity Theory in Weak Fields -- Deflection of Light -- Gravitational Red Shift -- Relativistic Frame Dragging -- Principle of Equivalence -- Secular Change in the Gravitational Constant -- Gravitational Waves -- Pre-1995 Program for Relativistic Gravitation -- Recommended Program for Relativistic Gravitation: Post-1995 -- B. MICROGRAVITY SCIENCE -- Background -- Observation of States in Equilibrium -- Observation of States Destroyed by Gravity -- States Far From Equilibrium -- Conclusions and Recommendations for Microgravity Science -- 7 Life Sciences -- BACKGROUND -- LIFE SCIENCE GOALS AND MAJOR QUESTIONS -- Exobiology Goals -- Major Questions for Exobiology: 1995 to 2015 -- Global Biology Goals -- Major Questions for Global Biology: 1995 to 2015 -- Space Biology Goals -- Major Questions for Space Biology: 1995 to 2015 -- Space Medicine Goal -- Major Questions for Space Medicine: 1995 to 2015 -- RECOMMENDED PROGRAM: POST-1995 -- Recommendations for Exobiology -- Recommendations for Global Biology -- Recommendations for Space Biology and Space Medicine -- Significance of Recommendations -- 8 Interdisciplinary Studies -- 9 Human Presence in Space -- SPACE AGE SCIENCE -- THE SCOPE OF HUMAN PRESENCE IN SPACE -- 10 International Cooperation -- 11 Preconditions and Infrastructure.Space sciencesAstronomyCosmic physicsSpace biologyPlanetsExplorationRelativity (Physics)Space sciences.Astronomy.Cosmic physics.Space biology.PlanetsExploration.Relativity (Physics)520MiAaPQMiAaPQMiAaPQBOOK9910812222103321Space science in the twenty-first century3968674UNINA