Q&A with Greg Wyler, founder and chairman of OneWeb (members only)

An Ariane 5 rocket took off on a rare morning launch Thursday with four Galileo navigation satellites, the heavy-lifter’s first flight in support of the European positioning and timing fleet. Liftoff from French Guiana occurred at 1306 GMT (8:06 a.m. EST).

Hardware for two air-dropped Pegasus XL launchers previously purchased by Stratolaunch, a space launch company founded by the late billionaire Paul Allen, are now back under Northrop Grumman control and for sale to NASA, the Air Force, or commercial satellite operators, industry officials said.

With Tropical Depression Eta forecast to restrengthen into a tropical storm and move toward Florida, United Launch Alliance moved an Atlas 5 rocket off its launch pad at Cape Canaveral Friday and delayed liftoff with a U.S. government spy satellite to Wednesday.