The Air Force says that the almost one-of-a-kind spacecraft "conducted on-orbit experiments" in the the longest-ever mission for the X-37B program.
But what it's doing up there or for how long -- well, you might glean more from talking to the wall than asking the Air Force about its hush-hush mission.
An Atlas V rocket carrying the unmanned craft, which looks like a miniature space shuttle, has the green light for a planned liftoff Tuesday. Just don't ask what it's up to.
The unmanned spacecraft has been in orbit for more than a year. The Air Force won't say much about its mission, but surely it's more than just a test drive.
Resembling a shrunk-down space shuttle, the Air Force's X-37B returns to Earth from its debut test flight, pointing the way toward cheaper, adaptable--and perhaps military--missions.
The unmanned X-37B Orbital Test Vehicle heads into space on its first mission, as the Air Force scopes out how it might eventually serve "warfighters' needs."
The new XS-1 program wants designs for satellite-toting flying machines that are fast (hypersonic, even), cheap, and reusable -- on a one-day turnaround, no less.
Petition presses Apple to allow app that maps U.S. drone strikes to be featured in company's mobile-app store. Group behind petition says map is meant to inform public about U.S. "drone wars" -- not celebrate them.
Wrapping up a classified 469-day mission, an unmanned Air Force space plane dropped out of orbit and returned to Earth on Saturday, executing an automated landing to close out the program's second test flight.
The Air Force expects to deploy its $3.5 billion system by 2017, and in the process improve its space debris tracking ten-fold. If it works, as many as 200,000 pieces of junk can be tracked.