NASA’s Dawn spacecraft successfully completed the first test of its ion propulsion system over the weekend. The system is vital to the success of Dawn’s 8-year, 1.6 billion-kilometer (3-billion-mile) ...

CLEVELAND — A small robotic surveyor arrives to explore a near-Earth asteroid. Another robotic spacecraft is returning to Earth with a pristine comet surface sample. Meanwhile, a robotic explorer is ...

A loud rumbling could be heard around lunchtime in South Mississippi on Wednesday as NASA tested a key piece of equipment for its upcoming missions to the moon. The rumbling came from NASA’s Stennis ...

June 23 (UPI) --NASA fired up a full-duration test of its new RS-25 engine that will power the Space Launch System rocket on Artemis missions to the moon, the space agency announced Monday. NASA ...

Psyche is gently gliding to its target asteroid by expelling ionized xenon. Psyche is gently gliding to its target asteroid by expelling ionized xenon. is a former weekend editor who covered tech and ...

NASA fired up RS-25 engine No. 20001 at the Fred Haise Test Stand at NASA’s Stennis Space Center at Bay St. Louis, ...