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.’

Renowned NASA astronauts Suni Williams and Butch Wilmore are still stuck in space at the International Space Station (ISS) and in a latest development, Tesla CEO Elon Musk and NASA asserted that when will they finally coming back to earth again.

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

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 ...

While Suni Williams and Butch Wilmore’s situation is unusual, their return trip will be pretty routine, as they were already slated to fly home on a SpaceX capsule as part of a scheduled crew rotation.

NASA’s 1st woman acting administrator, Janet Petro, is leading the charge in space exploration. Learn how her career milestones and vision for NASA’s space missions are shaping the future of space exploration.

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

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.

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

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,