Watch the ESA launch its wind-mapping Aeolus satellite at 5PM ET

The European Space Agency is launching its Aeolus wind-mapping satellite today from the Guiana Space Center in Kourou, French Guiana. Once in orbit, Aeolus will measure winds from the Earth's surface up to the stratosphere using powerful lidar techno...

Stratolaunch’s new satellite carriers include a reusable space plane

Paul Allen's Stratolaunch is only just starting to make serious progress on its massive aircraft, but it's already thinking about its future beyond that enormous machine. The company has unveiled a new family of launch vehicles that can carry a wide...