The countdown continues for Thursday’s launch of the United Launch Alliance’s Delta IV Heavy rocket carrying the NROL-70 mission for the National Reconnaissance Office.

But the Delta IV Heavy is expensive. At one time, a single launch on this expendable rocket cost as much as $400 million, although the government secured a somewhat lower price from ULA for buying ...

The grand Delta finale is upon us, as United Launch Alliance (ULA) prepares to launch its last Delta IV rocket and bid farewell to an iconic rocket family that dates back to the Cold War. Update ...

On April 9, United Launch Alliance (ULA) launched its last Delta IV Heavy rocket carrying the NROL-70 mission from Florida, US. The mission was launched for the National Reconnaissance Office (NRO).

The Delta IV Heavy made its debut during a December 2004 demonstration flight from Launch Complex 37. At that time, it was the most powerful rocket launched from Cape Canaveral save the Saturn V ...

This is the last flight for the 235-foot-tall (72-meter) Delta IV Heavy, which debuted in 2002. It’s also the end of the road for the Delta program.

Fifteen flights later, Delta IV Heavy is set to become the final Delta rocket to be retired. In addition, ULA has 17 remaining launches for Atlas V, the country’s longest-serving active rocket.

The Delta IV Heavy is always a spectacular launch thanks to 2.2 million pounds of thrust and an interesting quirk at launch that makes it look like the rocket is on fire. “To me, it is kind of sad.

The Delta IV Heavy, a rocket that briefly bursts into flame just before it lifts off, is set to launch for the last time soon. Listen to this article · 2:38 min Learn more ...

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 ...

United Launch Alliance will send its Delta IV Heavy rocket on its final flight on Tuesday, April 9. The rocket was supposed to launch last month, but the liftoff was scrubbed with minutes to go ...

Heading east from Florida's Space Coast, the Delta IV Heavy appeared to perform well in the early phases of its mission. After fading from view of ground-based cameras, the rocket's two liquid ...