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 ...

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. Previously, it was scheduled for 2:45 p.m. EDT, 1:40 p.m. EDT and 2:03 ...

Editor's note: FLORIDA TODAY's Space Team was at Cape Canaveral covering the final launch for ULA's Delta IV Heavy rocket when ULA called a scrub at 2:47 p.m. EDT Thursday, March 28. Next attempt is ...

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 ...

Godspeed, Delta IV Heavy! From 2004 to 2024, it's been an amazing run. The final launch for United Launch Alliance's powerful rocket is one you won't want to miss. When it launches. At 2:47 p.m. EDT ...