The U.S. Air Force's X-37B military space plane has now been circling Earth for 700 days, just a few weeks shy of the vehicle's spaceflight-duration record.
https://www.space.com/x-37b-military-space-plane-otv5-700-days.html
The U.S. Air Force's X-37B military space plane has now been circling Earth for 700 days, just a few weeks shy of the vehicle's spaceflight-duration record.
https://www.space.com/x-37b-military-space-plane-otv5-700-days.html