Boeing said Tuesday it is “making excellent progress” toward launching a second unpiloted test flight of its Starliner crew capsule to the International Space Station by the end of this year or in early January, setting the stage for the first Starliner demonstration mission with astronauts in mid-2021.

A United Launch Alliance Atlas 5 rocket blasted off from Cape Canaveral at 6:28 a.m. EDT (1028 GMT) today to deploy the Mexican Morelos 3 mobile communications satellite.

United Launch Alliance has packed two days of rollout, countdown and launch activities into a two-minute video highlighting Friday night’s blastoff of an Atlas 5 rocket from Cape Canaveral with the U.S. Air Force’s SBIRS GEO Flight 4 missile-warning satellite.