Air Force X-37B Spaceplane Launches on May 20 with Military, NASA and LightSail Payloads: Watch Live

All systems are currently "GO" for the fourth launch of the US Air Force’s secretive unmanned, X-37B military space plane this Wednesday, May 20, on a flight combining both US national security experimental payloads as well as civilian science experiments sponsored by NASA, US Universities, commercial companies, and the solar sailing LightSail test from the […]