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 ...

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 ...

Delta IV Heavy, we're ready for your fiery − and final − show. The last launch ever for United Launch Alliance's powerful rocket is one you won't want to miss. The Delta IV Heavy rocket will attempt ...

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 ...

Firing up its three core boosters and RS-68A engines, the last 235-foot tall Delta IV Heavy rumbled into the record books Tuesday afternoon on a historic farewell flight from Cape Canaveral Space ...

After six decades of launches, the liftoff of the last-ever Delta rocket on Tuesday (April 9) brought with it a change in the way the U.S. sends satellites, interplanetary probes and spacecraft into ...

A United Launch Alliance Delta 4 Heavy launched NROL-70 at 12:53 p.m. Eastern from Space Launch Complex-37 at Cape Canaveral Space Force Station. Credit: ULA webcast COLORADO SPRINGS — In a historic ...