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 ...

This is the rocket that literally lights itself on fire before it heads to space. It’s the world’s largest rocket entirely fueled by liquid hydrogen, a propellant that is vexing to handle but ...

Delta IV Heavy rocket, retirement is on hold − for a little longer. When is United Launch Alliance's massive Delta IV Heavy rocket going to launch? The much-anticipated Delta IV Heavy rocket will ...

EXPECTED 1.4 MILLION. THE NEXT ERA SPACEFLIGHT HAS BEEN FOCUSED ON LOWERING AND REUSABILITY. A LARGE LIFT ROCKET THAT’S BEEN IN SERVICE FOR YEARS WILL TAKE TO THE SKY FROM CAPE TOMORROW FOR THE SECOND ...

Today's Delta IV Heavy launch closed out the rocket program after 389 flights. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

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 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 ...

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 ...

Delta IV Heavy made its debut in 2004. At that time, it was the most powerful rocket launched from Cape Canaveral save the Saturn V & space shuttles. The massive Delta IV Heavy has 3 Delta IV core ...

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 ...