Photos: First ULA mission of the year blasts off

Dan Hart leads a staff of hundreds of engineers and technicians developing LauncherOne, a commercial air-launched booster intended to hurl small satellites weighing up to 1,100 pounds (500 kilograms) into orbit.

A communications satellite built for the South Korean military arrived at Cape Canaveral this week from an Airbus factory in France to begin final preparations for launch on a SpaceX Falcon 9 rocket in July.

The United Launch Alliance Atlas 5 rocket was transfered from its assembly building to the pad at Cape Canaveral’s Complex 41 today for Tuesday’s launch of a commercially-operated cargo ship to resupply the International Space Station.