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(OCTOBER 2000)  (A) THIS AWARD IS A COOPERATIVE AGREEMENT AS IT IS ANTICIPATED THERE WILL BE SUBSTANTIAL NASA INVOLVEMENT DURING PERFORMANCE OF THE EFFORT.  NASA AND THE RECIPIENT MUTUALLY AGREE TO THE FOLLOWING STATEMENT OF ANTICIPATED COOPERATIVE INTERACTIONS WHICH MAY OCCUR DURING THE PERFORMANCE OF THIS EFFORT:  NAI CENTRAL IS RESPONSIBLE FOR COORDINATING INSTITUTE ACTIVITIES  ADVOCATING THE NEEDS & SCIENTIFIC INTERESTS OF THE MEMBERS OF THIS COOPERATIVE AGREEMENT  DISBURSING FUNDS (INCLUDING A STRATEGIC DIRECTOR S DISCRETIONARY FUND FOR HIGH-RISK/HIGH-PAYOFF RESEARCH PROJECTS AND FOR FOSTERING COLLABORATION BETWEEN MEMBERS)  SPONSORING THE NAI POSTDOCTORAL FELLOWSHIP PROGRAM  COLLECTING AND ARCHIVING INFORMATION ON RESEARCH ACCOMPLISHMENTS & PUBLICATIONS  ORGANIZING FOCUS GROUP MEETINGS & WORKSHOPS  & EXPEDITING NETWORK CONNECTIVITY WHILE ENGINEERING THE INTERFACES BETWEEN THE SCIENTISTS & THE NETWORK.  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TOGETHER WITH NEW CO-INVESTIGATORS FROM UNIVERSITY OF CALIFORNIA  LOS ANGELES AND CALIFORNIA INSTITUTE OF TECHNOLOGY  WE PROPOSE TO DEVELOP NOVEL APPROACHES TO DETECTING AND CHARACTERIZING LIFE  INVESTIGATE BIOSIGNATURES IN MISSION-RELEVANT ECOSYSTEMS AND ANCIENT ROCKS  AND EVALUATE THE POTENTIAL FOR BIOSIGNATURES IN EXTRATERRESTRIAL SETTINGS.(1) DEVELOPING NEW BIOSIGNATURES   THE DEVELOPMENT AND TESTING OF POTENTIAL INDICATORS OF LIFE IS ESSENTIAL FOR PROVIDING A CRITICAL SCIENTIFIC BASIS FOR EXPLORATION OF LIFE IN THE COSMOS.  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PSARC WILL INVESTIGATE THE ABUNDANCE OF SULFUR GASES AND ELUCIDATE HOW THESE GASES CAN BE EXPECTED TO EVOLVE WITH TIME ON YOUNG TERRESTRIAL PLANETS.  WE WILL CONTINUE STUDIES OF PLANET FORMATION IN THE PRESENCE OF MIGRATION AND MODEL RADIAL TRANSPORT OF VOLATILES IN YOUNG PLANETARY SYSTEMS.  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