Video: Liftoff of Atlas 5 with GPS 2F-10

A United Launch Alliance arrived at Cape Canaveral’s Complex 41 launch pad Friday morning after rolling out of its vertical hangar with three U.S. Air Force satellites designed to provide communications to military leaders and test new in-orbit inspection and surveillance technology.

The Federal Aviation Administration has approved a launch license for SpaceX’s Falcon Heavy rocket set for blastoff Tuesday, giving the U.S. government’s regulatory green light for the heavy-lifter to dispatch Elon Musk’s used electric car on a one-way trip into deep space.

The stacking of a United Launch Alliance Atlas 5 rocket this week at Cape Canaveral signals the start of a busy six-week campaign to ready ULA’s trusty workhorse launcher for its debut in a new human-rated configuration in mid-December.