Delta IV Heavy made its debut during a December 2004 demonstration flight from Florida's Launch Complex 37. United Launch Alliance's last Delta IV Heavy triple-core rocket will launch on the NROL-70 ...

The era of Delta Heavy IV is coming to an end. For the last 64 years, United Launch Alliance's (ULA's) heavy-lift rocket has led an impressive career lofting large payloads into space. However, the ...

CAPE CANAVERAL SPACE FORCE STATION — Space lovers far and wide got to see United Launch Alliance’s Delta IV Heavy rocket take off for the last time on Tuesday afternoon. The 235-foot rocket took off ...

Ending an era in U.S. rocketry, United Launch Alliance fired off its 16th and final triple-core Delta 4 Heavy Tuesday, launching a classified spy satellite in the last hurrah of a storied family of ...

A United Launch Alliance Delta IV Heavy rocket blasted off from Cape Canaveral Space Force Base on June 22, and the launch was captured in stunning detail in photographs and video. The launch, which ...

Add Yahoo as a preferred source to see more of our stories on Google. At 2:47 p.m. EDT Thursday, March 28, ULA called a scrub. At 2:45 p.m. EDT (previously 1:40 p.m. EDT and 2:03 p.m. EDT) the Delta ...