Video: Liftoff of Atlas 5 on space station cargo mission

The United Launch Alliance Atlas 5 rocket that will boost NASA’s latest communications relay satellite into space is targeting an Aug. 20 liftoff at 7:56 a.m. EDT (1156 GMT).

Air Force meteorologists are expecting good weather to launch the Delta 4 rocket with a military communications satellite when the sun goes down Friday evening at Cape Canaveral.

Follow the Atlas 5 rocket’s ascent into orbit from Cape Canaveral’s Complex 41 launch pad with the U.S. Air Force’s GPS 2F-10 navigation satellite.