December 20, 2025, will be remembered as a turning point in the chronicles of space exploration, forever altering humanity’s ...

Learn about Sally Ride, Mae Jemison, and Eileen Collins, some of the pioneering women at NASA who were among the first to suit up for spaceflight. Valerie Neal Sally Ride at the Lyndon B. Johnson ...

African American astronaut Mae Jemison, left, smiles as suit technician Sharon McDougle performs an unpressurized and pressurized leak check on her spacesuit prior to the STS-47 Spacelab-J mission on ...

On July 8, 1962, the United States detonated a 1.4-megaton nuclear weapon 400 kilometers above the Pacific Ocean. The Starfish Prime test created an artificial aurora visible from Hawaii, nearly 900 ...