In a letter to his replacement, outgoing NASA leader Bill Nelson emphasizes the agency’s activities ‘transcend the length of ...

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

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

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

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 ...

NASA is pitching a cheaper and quicker way of getting rocks and soil back from Mars, after seeing its original plan swell to $11 billion. Administrator Bill Nelson presented a revised scenario ...

NASA Administrator Bill Nelson has left the building ... And our job is to show them the way.” He signed off noting as a former administrator and proud American he was rooting for his replacement.

NASA "pulled the plug" and is focusing on two options to reduce costs and speed up the return of the samples, agency Administrator Bill Nelson said Tuesday. Option one would use the same "sky ...

Nelson and NASA Deputy Administrator Pam Melroy left the agency on Monday (Jan. 20), the day that Donald Trump began his second term as president. Trump has appointed Janet Petro, who most recently ...