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The Mars Exploration Program Analysis Group (MEPAG) is a community-based forum designed to provide science input from the scientific community to NASA for the planning and prioritization of Mars future exploration activities, and to facilitate distribution of NASA Mars Program information to its members. Its Executive Committee is chartered by NASA's Lead Scientist for the Mars Exploration Program at NASA HQ, and reports its findings at Federal Advisory Committee Act (FACA)-sanctioned meetings of the Planetary Science Subcommittee (PSS) of the NASA Advisory Council (NAC).

The MEPAG Executive Committee holds open townhall-style meetings approximately once per year, as well as virtual meetings when needed. Additionally, the MEPAG Executive Committee organizes Science Analysis Groups (SAGs) for detailed analyses of pressing planning questions that are presented to MEPAG by NASA. Finally, the MEPAG Executive Committee and Goals Committee regularly evaluate Mars exploration goals, objectives, investigations and priorities on the basis of the widest possible community outreach. One of MEPAG’s primary products is the “living” Goals Document, which is regularly updated by the Goals Committee to reflect the current state of knowledge, plans, and inquiry about Mars with regards to (1) Life, (2) Climate, (3) Geology, and (4) Human Exploration. NASA's Mars Program Office, located at JPL, has been directed to manage the logistics associated with the operations of MEPAG on behalf of NASA's Science Mission Directorate. All interested members of the Mars exploration community can join the MEPAG email list and may attend its meetings. Members of the MEPAG Committees are invited based on their past demonstration of involvement with MEPAG and their past contributions towards Mars Science, with an additional aim for balanced cross-discipline and cross-institution representation. Nominations for open positions will be solicited via the Newsletter.

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