NASA's Orion spacecraft, atop a United Launch Alliance Delta 4-Heavy rocket, lifts off on its first unmanned orbital test flight from the Cape Canaveral Air Force Station Friday, Dec. 5, 2014, in Cape Canaveral, Fla. (AP Photo/Chris O'Meara)

Photos: Launch of Orion

Orion lifts off on its first unmanned orbital test flight from Complex 37 B at the Cape Canaveral Air Force Station, Friday, Dec. 5, 2014