Photos: More shots of Delta 4 liftoff

SpaceX’s Falcon 9 rocket is set for liftoff from Cape Canaveral on Monday, heading due east over the Atlantic Ocean to deliver the Telstar 18 VANTAGE communications satellite into orbit around 32 minutes later.

Intelsat and SES, operators of the two largest fleets of geostationary communications satellites, have ordered 10 spacecraft from Maxar, Northrop Grumman and Boeing for launches beginning in 2022 to replace C-band capacity being transitioned to 5G cellular network services.

Boeing specialists working inside a former space shuttle hangar in Florida started fueling the company’s first spaceflight-ready Starliner capsule this week ahead of the ship’s rollout to its launch pad later this month. The fueling milestone is a major step in the Starliner launch campaign, and comes after engineers concluded that human error led to a parachute deployment malfunction during a crew capsule abort test Monday.