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

NASA Administrator Bill Nelson has left the building, and while President Donald Trump’s nominee awaits a confirmation hearing, the head of Kennedy Space Center will keep things afloat. Nelson, who flew to space on board Space Shuttle Columbia while a member of the House of Representatives,

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

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

In a statement to CNN, former NASA Administrator Bill Nelson — who helmed the agency under Biden and stepped down from the post when Trump took office earlier this month — said, “SpaceX will ...

NASA Administrator Bill Nelson has left the building, and while President Trump’s nominee awaits a confirmation hearing, the head of Kennedy Space Center will keep things afloat. Nelson ...

So the return of Suni Williams and Butch Wilmore has never been a political story—until this week. And it's a good thing that the two will be in space tomorrow because, as attested to in the tagline for the movie Alien, in space, no one can hear you scream.

Astronauts Suni Williams and Butch Wilmore, who have been on an unexpectedly monthslong assignment after serving on Boeing’s Starliner crewed test flight, are conducting a spacewalk Thursday. The

Tampa-area U.S. Rep. Kathy Castor has hired Shahra Lambert as her District Advisor. Lambert previously served 15 years with former U.S. Sen. Bill Nelson.

According to NASA's SPHEREx mission details, the observatory will survey the entire sky using near-infrared light. Its goals include exploring how galaxies evolved, understanding the structure of the universe,

Departure of Bill Nelson and Pam Melroy: Former NASA Administrator Bill Nelson and Deputy Administrator Pam Melroy have exited their roles. Jim Free’s New Role: Jim Free has been appointed as ...