THE OBJECTIVE OF THIS RESEARCH IS TO PROVIDE RECOMMENDATIONS FOR AUGMENTING HUMAN SITUATION AWARENESS (SA) AND TASK PERFORMANCE THROUGH MULTIMODAL DISPLAYS AND COMMUNICATION PATHWAYS BASED ON EMPIRICAL EVIDENCE. SPECIFICALLY WE WILL EVALUATE THE EFFECTIVENESS OF SEVERAL MULTIMODAL VIRTUAL REALITY (VR) TECHNIQUES IN PROVIDING SPATIAL AND TEMPORAL SA TO A HUMAN OPERATOR CONTROLLING MULTIPLE SEMI-AUTONOMOUS AGENTS. OUR TESTBED WILL SIMULATE A LONG-DURATION EXPLORATION MISSION (LDEM) INSPECTION TASK USING THE GROUNDBASED MIT SPHERES PLATFORM ENHANCED WITH NASA-JPL AUTOMATIC SCENE RECONSTRUCTION CAPABILITY. A HUMAN STUDY WILL BE CONDUCTED WITH THE HUMAN SUPERVISOR PROVIDING COMMANDS TO THE SPHERES USING IMAGES RENDERED IN A VIRTUAL ENVIRONMENT. THE RESULTS OF THIS PROJECT WILL PROVIDE EMPIRICAL EVIDENCE FOR REVISING PORTIONS OF NASA-STD-3001 AND THE NASA HUMAN INTEGRATION DESIGN HANDBOOK (HIDH) THAT GUIDE INTERFACE DESIGN FOR EFFECTIVE SA AND TASK PERFORMANCE. THERE IS A NEED TO EXPAND CURRENT GUIDANCE ON RESPONSIVE DISPLAYS ESPECIALLY WHEN INTEGRATED WITH VR TECHNOLOGIES TO ENABLE SA FOR RELEVANT OPERATIONAL TASKS. THE PROPOSED PROJECT WILL INTEGRATE CURRENT NASA JPL TECHNOLOGY WITHIN A SMALL ROBOTIC SATELLITE TESTBED TO EXAMINE THE BI-DIRECTIONAL COMMUNICATION BETWEEN THE HUMAN-ROBOT TEAM TO ENABLE IMPROVED SA. WE PROPOSE THE FOLLOWING SPECIFIC AIMS (1) INTEGRATE AND EXTEND EXISTING CAPABILITIES AT JPL AND MIT INTO A TESTBED FOR EXAMINING INFORMATION COMMUNICATION BETWEEN HUMAN-AUTONOMY TEAMS AND (2) EVALUATE SA TRUST AND TASK PERFORMANCE WITHIN A GROUND-BASED STUDY WITH SELECTED COMMUNICATION MODALITIES AND INFORMATION DISPLAYS.