Snapshots from Atlas 5 launch

A replay of the United Launch Alliance Atlas 5 rocket launching the Air Force’s X-37B reusable spaceplane from Cape Canaveral, Florida.

A United Launch Atlas 5 rocket is set to launch the U.S. Air Force’s sixth and final Advanced Extremely High Frequency communications satellite from Cape Canaveral. This timeline shows the major mission events planned over a nearly six-hour flight to an optimized geostationary transfer orbit.

Tugged along a historic route leading to the launch pad where Yuri Gagarin took off 1961 to become the first person in space, a Soyuz rocket rolled out of its assembly hangar in Kazakhstan and stood up on its launch mount Sunday.