Bill Nelson has stepped down as NASA administrator, ending a half-century of public service. Nelson and NASA Deputy Administrator Pam Melroy left the agency on Monday (Jan. 20), the day that ...

Bill Nelson's letter serves as both a farewell and a call to action, reminding all involved in NASA's mission of the vital role they play in shaping humanity's future in space.

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 a ...

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 a ...

He said he carried the water for NASA in his years in Congress, including 18 representing Florida in the Senate. “People will judge me on the basis of what we accomplished,” Nelson said.

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.