Live coverage: Atlas 5 countdown and launch journal

The United Launch Alliance Atlas 5 rocket that will boost NASA’s latest communications relay satellite into space is targeting an Aug. 20 liftoff at 7:56 a.m. EDT (1156 GMT).

SpaceX launched a Falcon 9 rocket with the next batch of 60 Starlink internet satellites at 3:13 a.m. EST (0813 GMT) Thursday from pad 40 at Cape Canaveral Space Force Station. The reusable first stage successfully landed on a drone ship in the Atlantic Ocean.

The United Launch Alliance Atlas 5 rocket was transferred from its assembly building to the pad at Cape Canaveral’s Complex 41 today for Friday’s launch of NASA’s Tracking and Data Relay Satellite-M that directly supports the International Space Station and various science missions.