Video: Atlas 5 GPS 2F-8 Launch Highlights

An 11-hour practice countdown was completed Friday at Cape Canaveral’s launch complex 41 for the planned launch of an Atlas 5 rocket and Boeing’s Starliner capsule later this month. The rocket was loaded with super-cold liquid oxygen and liquid hydrogen in a full dress rehearsal for launch day.

The Atlas 5 countdown leading up to Friday’s early morning liftoff from Cape Canaveral with Boeing’s Starliner crew capsule will be several hours longer than usual.

SpaceX’s Falcon 9 rocket got within a second of liftoff Sunday before a low-thrust alarm triggered an automatic abort. Watch a view of the dramatic last-second countdown cutoff at engine ignition from our camera at the launch pad.