Photos: New GPS navigation satellite powered from Earth

Virgin Orbit completed a captive carry flight of its liquid-fueled air-launched rocket Sunday over the Pacific Ocean in what the company described as its final development test before the small satellite launcher’s first mission to space.

SpaceX’s next launch, scheduled for no earlier than May 15, will loft dozens of small test satellites into orbit from Cape Canaveral for the company’s planned Starlink broadband network, with fully operational Starlink spacecraft to follow on future missions, a senior SpaceX official said Tuesday.

The United Launch Alliance Delta 4 Medium+ (5,4) rocket lifted off Wednesday at 6:53 p.m. EST (2353 GMT) from Cape Canaveral to deploy the latest craft for the U.S. military’s Wideband Global SATCOM communications satellite constellation.