When SpaceX Falcon rocket exploded mid-air

The SpaceX Falcon 9 rocket and Dragon spacecraft breaks apart shortly after liftoff at the Cape Canaveral Air Force Station in Cape Canaveral, Fla., Sunday, June 28, 2015. The rocket was carrying supplies to the International Space Station. (Source: AP)

Falcon 9 experienced a problem shortly before first stage shutdown. (Source: AP)

A crowd at Cocoa Beach, Fla. watches the launch of the SpaceX Falcon 9 rocket and Dragon spacecraft, which broke apart shortly after liftoff from the Cape Canaveral Air Force Station. (Source: AP)

The SpaceX Falcon 9 rocket and Dragon spacecraft lifts off from Space Launch Complex 40 at the Cape Canaveral Air Force Station in Cape Canaveral. (Source: AP)

Complex 40 at the Cape Canaveral Air Force Station in Cape Canaveral, Fla., early Sunday, June 28, 2015. SpaceX lost contact with the Falcon 9 about 2 minutes and 19 seconds after liftoff, NASA launch commentator George Diller said. (Source: AP)

Mike Suffredini, manger of the International Space Station program, answers questions about the SpaceX rocket failure during a news conference at the Kennedy Space Center in Cape Canaveral. (Source: AP)