X-37B is an unmanned US Air Force space plane. The X-37B made a successful return on Friday after 220 days in Earth orbit.
X-37B Space Plane will return to Earth as early as this week. No word on declassification of its mission or costs to taxpayers.
The US Air Force's secret X-37B space plane remains in Earth orbit, but its initial mission might be coming to an end.
The US Air Force's secret X-37B space plane has boosted itself into a new orbit, say skywatchers.
A group of amateur skywatchers spotted the US Air Force's secret X-37B space plane orbiting the globe.
The secretive X-37B robot space plane was launched late Thursday. Destination unknown.