About
Harrison Hagan "Jack" Schmitt is an American geologist, former NASA astronaut, university professor, and former U.S. senator from New Mexico. He is most notably known as the most recent living person to have walked on the Moon as part of the Apollo 17 mission. Uniquely, he is also the only person without a military aviation background to have achieved this feat. Schmitt's contributions span both scientific exploration and political service.
Career Timeline
USGS Geologist
Began career as geologist, USGS.
NASA Astronaut Selection
Selected as a NASA astronaut, pivotal moment.
Apollo 17 Moonwalk
Walked on the Moon. Became a global icon.
NASA Resignation
Resigned from NASA to pursue politics.
US Senator
Elected as a U.S. Senator for New Mexico.
Senate Loss
Lost his re-election bid for the Senate.
Elder Statesman
Continues as a speaker and consultant, known for his Apollo 17 mission.
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Last updated: February 23, 2026