First Delta IV Medium in 5/2 configuration launches from Vandenberg

VANDENBERG AIR FORCE BASE, Calif.-- Team Vandenberg launched a United Launch Alliance Delta IV Medium+ (5,2) from Space Launch Complex-6 here at 4:12 p.m. PDT Tuesday, April 3, 2012. The launch was the Department of Defense?s first-ever Delta IV Medium launch vehicle configured with a 5-meter payload fairing and two solid rocket motors. (U.S. Air Force photo/Staff Sgt. Levi Riendeau)

First Delta IV Medium in 5/2 configuration launches from Vandenberg

VANDENBERG AIR FORCE BASE, Calif.-- Team Vandenberg launched a United Launch Alliance Delta IV Medium+ (5,2) from Space Launch Complex-6 here at 4:12 p.m. PDT Tuesday, April 3, 2012. The launch was the Department of Defense?s first-ever Delta IV Medium launch vehicle configured with a 5-meter payload fairing and two solid rocket motors. (U.S. Air Force photo/Staff Sgt. Levi Riendeau)

First Delta IV Medium in 5/2 configuration launches from Vandenberg

VANDENBERG AIR FORCE BASE, Calif.-- Team Vandenberg launched a United Launch Alliance Delta IV Medium+ (5,2) from Space Launch Complex-6 here at 4:12 p.m. PDT Tuesday, April 3, 2012. The launch was the Department of Defense?s first-ever Delta IV Medium launch vehicle configured with a 5-meter payload fairing and two solid rocket motors. (U.S. Air Force photo/Staff Sgt. Levi Riendeau)

Lift Off

VANDENBERG AIR FORCE BASE, Calif.-- Team Vandenberg launched a United Launch Alliance Delta IV Medium+ (5,2) from Space Launch Complex-6 here at 4:12 p.m. PDT Tuesday, April 3, 2012. The launch was the Department of Defense's first-ever Delta IV Medium launch vehicle configured with a 5-meter payload fairing and two solid rocket motors. (U.S. Air Force photo/Staff Sgt. Andrew Satran)

Media photographers set up for launch

VANDENBERG AIR FORCE BASE, Calif. -- The United Launch Alliance Delta IV Medium rocket sits on the pad at Space Launch Complex Six and is scheduled to launch April 2, 2012. (U.S. Air Force photo/Staff Sgt. Andrew Satran)

Media photographers set up for launch

VANDENBERG AIR FORCE BASE, Calif. -- Ben Cooper, Spaceflight Now website photographer, sets up a remote camera near Space Launch Complex six for a luanch here March 29, 2012. The United Launch Alliance Delta IV Medium rocket launch is scheduled for April 2, 2012. (U.S. Air Force photo/Staff Sgt. Andrew Satran)