Staying in orbit can be challenging, at least for lower orbits that are more affected by Earth's atmosphere. But, such orbits also come with advantages, such as better vantage points for new ...

Hayabusa2 will fire up its ion engine in earnest on Dec. 3. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Breaking space news, the latest ...

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 ...

GOCE’s sophisticated electric ion propulsion system has been switched on and confirmed to be operating normally, marking another crucial milestone in the satellite’s post-launch commissioning phase.