US Air Force's X-37B Space Has Been In Orbit For 600 Days

Like a shuttle, X-37B is blasted into orbit by a rocket. However, it lands using a runway like a normal aircraft. The X-37B is too small to carry people onboard, but does have a cargo bay similar to that of a pickup truck, which is just large enough to carry a small satellite

Daily Mail: US Air Force's X-37B space plane reaches 600 days in orbit - and its mission STILL remains a mystery

* X-37B drone blasted off on a mysterious mission on May 20, 2015
* Theories range from it being a space bomber to destroying satellites
* The flight is testing a system that makes satellites easy to manoeuvre
* This is probably a small part of the vehicle's true mission, say experts

The US Air Force's mystery military space plane has now been in orbit for 600 days.

The X-37B space plane, an experimental program run by the Air Force, launched atop a United Launch Alliance Atlas V rocket on May 20, 2015.

While some details of its payload have been revealed - we still do not know exactly what's on board.

Theories have ranged from it being a space bomber, to a probe on a mission to 'take out' spy satellites.

Read more ....

Update #1: Air Force's Mysterious X-37B Space Plane Wings by 600 Days in Orbit (Space.com)
Update #2: Pentagon’s Mystery Space Plane Stays in Orbit for 600 Days (Sputnik)

WNU Editor: 600 days .... that tells me that it is watching something(s).