Mars Exploration Program Analysis Group
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The Mars Exploration Program Analysis Group (MEPAG) is a forum created by NASA to enable the scientific community to provide input for the planning and prioritizing of the exploration of Mars over the next several decades.
The other forums created are the Lunar Exploration Analysis Group (LEAG), the Outer Planets Assessment Group (OPAG), the Small Bodies Assessment Group (SBAG), and the Venus Exploration Analysis Group (VEXAG).