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 ...

Delta IV Heavy rocket has 3 Delta IV core stages. Each rocket engine produces up to 702,000 pounds of thrust. The engines aren't small: Just one engine weighs about 14,876 pounds and is 17 feet in ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. After six decades of launches, the liftoff of the last-ever Delta rocket on Tuesday (April 9) ...

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