US Air Force's secretive space plane lands after two years in orbit

Monday, May 8, 2017 - 14:51 in Astronomy & Space

After almost two years in orbit, the X-37B Orbit Test Vehicle has returned to Earth - but what has it been doing?

Read the whole article on BBC News: Science & Nature

More from BBC News: Science & Nature

Latest Science Newsletter

Get the latest and most popular science news articles of the week in your Inbox! It's free!

Check out our next project, Biology.Net