AMONG THE SIGNIFICANT TEAM CHALLENGES NASA WILL FACE DURING LONG DISTANCE SPACE EXPLORATION IS THE NEED TO MAINTAIN SHARED COGNITION WITHIN THE SPACE CREW AND AMONG THE SYSTEM OF TEAMS THAT SUPPORT THE CREW FROM EARTH (I.E. THE SPACE EXPLORATION MULTITEAM SYSTEM). SHARED COGNITION IS DEFINED AS TEAM MEMBERS SHARED UNDERSTANDING OF KNOWLEDGE REGARDING THE TEAM S ENVIRONMENT TASKS EXPERTISE ROLES AND RESPONSIBILITIES. SHARED COGNITION NEEDS TO BE MAINTAINED WITHIN TEAMS WHO OPERATE AT A SHORT DISTANCE (I.E. THE CREW) AND ALSO BETWEEN TEAMS WHO OPERATE AT A GREAT DISTANCE (I.E. THE CREW AND GROUND). RESEARCH SUGGESTS THE EXTENT TO WHICH COGNITION IS SHARED WITHIN THE TEAM AND THE BROADER MULTITEAM SYSTEM HAS IMPLICATIONS FOR TEAM PROCESS PERFORMANCE AFFECT AND VIABILITY OVER TIME. OVER THE COURSE OF THIS THREE-YEAR PROGRAMMATIC RESEARCH PROGRAM WE HAVE THREE MAJOR FOCI OF ACTIVITY: (1) TO DEVELOP AND TEST WAYS TO MEASURE SHARED COGNITION IN TEAMS AND MULTITEAM SYSTEMS (2) TO EXPLORE THE ANTECEDENTS CONSEQUENCES AND MODERATING CONDITIONS ASSOCIATED WITH SHARED COGNITION AND (3) TO MODEL SHARED COGNITION IN TEAMS AND WITHIN MULTITEAM SYSTEMS SO AS TO INFORM INTERVENTIONS. IN YEAR 2 WE VE MADE SIGNIFICANT STRIDES IN EACH OF THESE AREAS WITH SIX MAJOR PROJECTS THAT SPEAK TO ONE OR MORE OF THE ABOVE FOCI.