Bill Nelson has stepped down as NASA administrator, ending a half-century of public service. Janet Petro is now the agency's ...

"America is leading humanity back to the Moon, onward to Mars, and into a golden age of space exploration," Nelson wrote, ...

In a letter addressed to the next NASA administrator—who, if Trump’s nomination is confirmed, will be Shift4 CEO and SpaceX ally Jared Isaacman—Nelson highlighted the space agency’s work during his ...

NASA Administrator Bill Nelson has left the building, and while President Trump’s nominee awaits a confirmation hearing, the ...

On Jan. 12, 1986, shuttle Columbia lifted off on the final successful shuttle mission before the Challenger disaster.

A collection of Martian rocks could reveal details about potential past life on the Red Planet – but first NASA has to get ...

KENNEDY SPACE CENTER — With less than a month left to go before stepping down as head of NASA, Bill Nelson warns his stance on conflicts of interest might not be the same as his likely ...

A bill authored by Senator Carla Nelson (R-Rochester) to help make medical supplies more affordable for Minnesotans was heard ...

An exploding budget and an unraveling schedule spell disappointment for NASA's mission to learn more about Mars's history.

Administrator Bill Nelson presented a revised scenario Tuesday, less than two weeks before stepping down as NASA’s chief when President-elect Donald Trump is inaugurated. Nelson said he ...

On this date in 1986, Congressman Bill Nelson launches onboard Columbia on the final successful shuttle flight before the ...