Photos: Delta 4-Heavy launch as seen from press site

The Leo Atlas 8 mission was also the final flight of an Atlas 5 551 configuration. Liftoff from pad 41 at Cape Canaveral Space Force Station happened at 12:30:15 a.m. EDT (0430:15 UTC).

The heart of NASA’s first flight-ready Space Launch System heavy-lift rocket emerged from its factory in New Orleans Wednesday morning for a barge trip to the Stennis Space Center in Mississippi for an eight-minute test-firing of its space shuttle-era hydrogen-fueled engines.

OneWeb is gearing up for launch of 34 more satellites for its broadband Internet network Saturday from the Baikonur Cosmodrome in Kazakhstan, despite reports that the company might seek bankruptcy protection and stringent restrictions on travel stemming from the coronavirus pandemic.