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 ...

Are you ready? Not one, but two amazing events will happen within days of each other, and Florida's Space Coast will get some an amazing view of both. When is United Launch Alliance's massive Delta IV ...

The final flight of United Launch Alliance’s Delta IV Heavy rocket took off Tuesday from Cape Canaveral, Florida, with a classified spy satellite for the National Reconnaissance Office. The Delta IV ...

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 ...

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 ...