Clarence William Nelson II (born September 29, 1942) is an American politician, attorney, and former astronaut who served from 2001 to 2019 as a United States senator from Florida and from 2021 to 2025 as the administrator of the National Aeronautics and Space Administration (NASA).

6 days ago · Bill Nelson, American Democratic politician who represented Florida in the U.S. Senate from 2001 to 2019. He had previously served in the U.S. House of Representatives (1979–91). Nelson was the second sitting member of Congress to travel into space (1986). In 2021 he became administrator of NASA.

May 3, 2021 · As the 14th NASA administrator, Sen. Bill Nelson led America’s space agency from May 3, 2021, to Jan. 20, 2025. In that capacity, Nelson carried out President Joe Biden and Vice President Kamala Harris’ vision to propel American leadership on Earth, in the skies, and in the stars, for the benefit of all.

Jan 23, 2025 · NASA Administrator Bill Nelson stepped down on Monday after President Donald Trump was inaugurated, and the departing space agency chief had some words of advice for his replacement. In a letter ...

Jan 21, 2025 · Former NASA administrator Bill Nelson peels a grapefruit on NASA's Columbia space shuttle during an Earth orbit as part of the STS 61-C mission which flew between Jan. 12 and Jan. 19, 1986.

Jan 6, 2025 · After a long career as a politician from Florida, former astronaut Bill Nelson has served as NASA's administrator for the last three and a half years. He intends to resign from this position in ...

Dec 19, 2024 · NASA Administrator Bill Nelson, who has led the agency into a new era of space exploration, is preparing to step down after four years at the helm.

Jan 7, 2025 · NASA is expected to confirm the program – and its design – in the second half of 2026. “Pursuing two potential paths forward will ensure that NASA is able to bring these samples back from Mars with significant cost and schedule saving compared to the previous plan,” said NASA Administrator Bill Nelson.

Jan 10, 2025 · “Once again, the temperature record has been shattered — 2024 was the hottest year since record keeping began in 1880,” said NASA Administrator Bill Nelson. “Between record breaking temperatures and wildfires currently threatening our centers and workforce in California, it has never been more important to understand our changing planet.”

Dec 19, 2024 · NASA's Apollo 16 astronauts launched to the moon on April 16, 1972. Two days later on the Space Coast, an aspiring 29-year-old Melbourne attorney named Bill Nelson announced he would run for...