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 ...

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) ...

The X3 Nested-channel Hall Thruster (NHT), is a 100-kW class thruster developed jointly by the Plasmadynamics and Electric Propulsion Laboratory (PEPL) at the University of Michigan, led by Alec ...

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 ...

A rendezvous with the metallic asteroid 16 Psyche is scheduled for 2029. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Breaking space news, the ...

Engineers working on NASA's Dawn spacecraft are assessing the status of a reaction wheel -- part of a system that helps the spacecraft point precisely -- after onboard software powered it off on Aug.