Video: Atlas 5 launch with GOES-S viewed from KSC press site (members only)

Sierra Nevada and United Launch Alliance have announced the most powerful version of the Atlas 5 rocket, with five strap-on boosters and a twin-engine upper stage, will send the first two Dream Chaser cargo missions to the International Space Station from Cape Canaveral in 2020 and 2021, a schedule that still must be confirmed by NASA.

Watch a video replay of Thursday’s liftoff of a SpaceX Falcon 9 rocket from pad 39A at NASA’s Kennedy Space Center in Florida, carrying the Es’hail 2 communications satellite into orbit.

For the fourth time this week, a rocket launch from Cape Canaveral was stopped with seconds remaining in the countdown Friday night, when a SpaceX Falcon 9 rocket automatically aborted its liftoff with a new GPS navigation satellite during the engine startup sequence.