Live coverage: Space station robot arm captures Dragon supply ship

The Starlink 10-20 mission will add another 28 broadband internet satellites to SpaceX’s megaconstellation. Liftoff from pad 40 at Cape Canaveral Space Force Station is scheduled at 8:29 a.m. EDT (1229 UTC).

No one had ever lost 26 satellites at once until a launch failure bit Planet Labs last year, temporarily setting back the San Francisco startup’s ambition to map the globe every day.

NASA astronauts Bob Behnken and Doug Hurley completed their final training sessions in Houston this week before their scheduled May 27 liftoff on a SpaceX Dragon spacecraft from the Kennedy Space Center, the first launch of humans from the Florida spaceport since 2011.