NASA astronauts Jessica Meir and Chris Williams prepared the International Space Station for the addition a new solar array during a spacewalk on Wednesday, March 18, 2026.

NASA’s X-59 supersonic aircraft is preparing for its second flight, inching its way closer to flying faster than the speed of sound without the explosive, thunder-like clap that

By Will Dunham WASHINGTON, March 18 (Reuters) - Using ground-penetrating radar, NASA's Perseverance rover has detected underground remains of an ancient river delta on Mars in some of the oldest evidence yet obtained showing how water once flowed on the surface of Earth's planetary neighbor.

The latest evidence that Mars was once a warmer, wetter world comes from a surprising place—the hidden subsurface depths of Jezero Crater—rather than its surface, which NASA’s Perseverance rover has

NASA astronauts are conducting a spacewalk to upgrade the solar panels powering the International Space Station. Watch here. (AP Photo)

NASA is reconsidering the use of a massive mobile launcher at the Kennedy Space Center, raising questions about costs, delays, and jobs tied to the Artemis moon program.

NASA has confirmed that a fireball and booms seen in northeast Ohio on March 17 was an asteroid that entered Earth's atmosphere.