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.
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.
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."
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.
The CEO of SpaceX and Tesla wants to speed up the development of 800-mph tube transport. He's willing to pay for testing -- most likely in Texas -- to make it happen.
Before we can go to Mars, we need a reliable vehicle to get us there. NASA's big test flight of Orion will help pave the way for manned deep-space missions.
The electric-car maker also says problems upgrading the assembly line reduced production of the Model S and forecasts 2,000 fewer units will be delivered this year.
Moon Express is gunning for the $20 million Google Lunar XPrize. We went down to Florida to watch a test of the team's lunar lander and to get an early look at its historic new facility.
The Bolt concept, unveiled at the 2015 Detroit auto show, promises a compact and affordable all-electric vehicle from Chevrolet.