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 ...

"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 ...

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

NASA’s 1st woman acting administrator, Janet Petro, is leading the charge in space exploration. Learn how her career ...

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

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

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