Zipping toward Earth at around 20,000 miles per hour, the asteroid is due to make its closest approach on Tuesday.

Astronomers have spotted a quasi-moon near Earth — and the small space rock has likely been hanging out near our planet unseen by telescopes for about 60 years, according to new research.Related video ...

The European Space Agency's (ESA) Hera spacecraft is scheduled to arrive at the binary asteroid system Didymos in November ...

A SpaceX executive said the move would reduce the "likelihood of collision" with other satellites and space debris.

Most people never think about where satellites sit once they reach space. They simply assume they stay put, doing their job ...