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

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

In a letter addressed to the next NASA administrator—who, if Trump’s nomination is confirmed, will be Shift4 CEO and SpaceX ...

Bill Nelson retires as NASA administrator; Janet Petro steps in as acting chief, awaiting Jared Isaacman’s confirmation.

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

NASA employees received a memo from acting agency administrator Janet Petro, Wednesday, mandating the closure of all ...

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

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

Weather organizations from around the world agree that the planet's average global surface temperature in 2024 could well ...

NASA proposes a faster, cheaper plan to bring Mars samples to Earth, aiming for delivery by the 2030s while cutting costs ...

"Once again, the temperature record has been shattered — 2024 was the hottest year since record keeping began in 1880." ...

Robert Cabana, a NASA associate administrator, astronaut, and a colonel in the United States Marine Corps, received the ...