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 ...

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 ...

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 ...

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 ...