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 served as director of Kennedy Space Center (KSC) in Florida, as NASA'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,

Astronauts Butch Wilmore and Suni Williams will conduct a spacewalk outside the International Space Station to swab the orbiting lab for evidence of microorganisms.

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

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

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 ...

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.

Changes to the schedules of the crewed Artemis II and Artemis III missions to the moon have been announced by NASA. The agency say they will not send astronauts back to the surface of the moon until September 2026, at the latest.

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 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.