The silhouette of US engineer and NASA astronaut Megan McArthur is seen past the NASA logo in the Webb Auditorium at NASA headquarters in Washington, DC, on June 7, 2022. Photo by STEFANI REYNOLDS/AFP ...

A stadium-size asteroid tumbled harmlessly past Earth this month as a powerful NASA radar system watched. The new observations helped nail down the asteroid's size, as it had been too far away for ...

A radar image of asteroid 2010 JL33, generated from data taken by NASA’s Goldstone Solar System Radar on Dec. 11 and 12, 2010. Image credit: NASA/JPL-Caltech Play video A radar image of asteroid 2010 ...

Scientists will soon have a spaceborne tool to study environmental changes at a very high resolution, and you won't have long to wait to learn more about it. NASA's Jet Propulsion Laboratory is ...

A broken cable created a gash 30 meters long in the main reflector dish at the Arecibo Observatory in Puerto Rico Aug. 10. Credit: Univ. of Central Florida. Updated 9:30 a.m. Eastern with news of ...

WASHINGTON — One of the two main science instruments on NASA’s $915 million Soil Moisture Active Passive (SMAP) spacecraft remains out of action more than a month after abruptly switching off, but ...

This composite image of asteroid 2007 PA8 was obtained using data taken by NASA’s 230-foot-wide (70-meter) Deep Space Network antenna at Goldstone, Calif. The composite incorporates images generated ...

The Cold War was full of ambitious and often strange projects. Case in point: Camp Century, the US Army’s subterranean nuclear apocalypse bunker built inside Greenland’s near-surface ice sheet.