Keith's note: According the NLSI Twitter: "NASA's chief exploration scientist, Mike Wargo, passed away unexpectedly yesterday. We will miss his leadership and friendship enormously." I'll post more information as I receive it. Very sad - Mike was such a nice person and believed in space exploration in a very personal way.
"The Lunar Exploration Analysis Group (LEAG) on behalf of the broader lunar community wishes to expresses its deep shock and sadness at the news that Dr. Mike Wargo passed away unexpectedly over the weekend of August 3-4, 2013. Mike was the Executive Secretary of LEAG and championed the Moon at NASA HQ."
Keith's update: This note is being circulated within and outside of NASA: "With deep sadness, I must tell you that our friend and colleague, Mike Wargo, passed away unexpectedly over the weekend. This news comes as a great shock to us all, and he will be missed terribly. In our grief, let us remember how Mike inspired us with his inexhaustible energy and enthusiasm, his hearty laugh and booming voice, and his dedication to NASA. Mike was HEOMD's chief exploration scientist, and his contributions to human exploration were many. He represented the directorate on the science teams for the Lunar Reconnaissance Orbiter and LCROSS missions, and most recently, he was a member of the Mars 2020 Science Definition Team. Mike led by example, working closely with colleagues in the lunar, planetary, and Mars science communities, to build collaborative and highly productive projects for both Exploration and Science. Please keep his wife Adele and his family in your thoughts and prayers during this difficult time. We will let you know about plans for the funeral and a NASA memorial service once they have been made."