Live coverage: Atlas 5 countdown and launch journal

NASA is announcing the astronauts who will fly the first crewed test flights of the SpaceX Dragon 2 and Boeing Starliner capsules next year. The event at the Johnson Space Center is due to get underway at 11am EDT (1500 GMT).

Blue Origin has conducted the first hotfire test of its BE-4 rocket engine in West Texas, a powerplant fueled by liquified natural gas and liquid oxygen that will power the company’s heavy-lift New Glenn rocket and perhaps United Launch Alliance’s next-generation Vulcan launcher, officials announced Thursday.

SpaceX launched the next group of satellites for the company’s Starlink broadband network Wednesday at 9:25 p.m. EDT (0125 GMT Thursday) from pad 40 at Cape Canaveral Air Force Station. The satellites rode into orbit on a Falcon 9 rocket with a first stage flown on four previous missions, and the booster made a successful fifth landing on a SpaceX drone ship in the Atlantic Ocean.