Atlas V rocket launching mission for US Space Force Sunday morning: Watch it live - Space.com

— United Launch Alliance (ULA) will launch an Atlas V rocket into space early Sunday morning (Dec. 5), and you can watch the action live online.

The two-stage rocket is scheduled to blast off from Space Launch Complex 41 here at Cape Canaveral Space Force Station at 4:04 a.m.

Space Force on a mission called STP-3 (Space Test Program-3).

The rocket rolled out to its launch pad on Friday (Dec. 3), making the 1,800-foot (550 m) journey from ULA's vertical integration facility to the pad. .

military's Space Test Program — a department dedicated to overseeing the Department of Defense's space-related activities — are classified.

The smaller "rideshare" satellite, known as LDPE-1 (Long Duration Propulsive EPSA spacecraft), will test a propulsion system in space and other technologies as well.

— United Launch Alliance delays Atlas V rocket launch for US Space Force.

— What is the US Space Force.

The launch comes on the heels of SpaceX's 27th rocket launch of the year, which blasted off from an adjacent pad on Thursday night (Dec. 2) and delivered 50 satellites to orbit, including 48 of the company's Starlink internet craft.