Bill Nelson — Administrator, NASA (2021-2025)

**Bill Nelson** served as the 14th Administrator of **NASA** from 2021 to January 2025, leading the agency through the Artemis program's first missions, the James Webb Space Telescope's deployment, and NASA's expanding commercial partnerships. He is a former U.S. Senator from Florida (2001-2019), a former Congressman (1979-1991), and one of the few elected officials to fly in space — he flew aboard the Space Shuttle Columbia in 1986.