Now, ending an era in American spaceflight, the 16th and final Delta IV Heavy rocket is scheduled to lift off at 1:40 p.m.

CAPE CANAVERAL SPACE FORCE STATION, Fla. – United Launch Alliance (ULA) has set a new launch date for the final Delta IV Heavy rocket after a technical issue caused a scrub for the first attempt.

At 320 feet tall, Blue Origin's New Glenn rocket is massive, standing taller than the SpaceX Falcon Heavy and ULA Delta IV Heavy rockets. When Jeff Bezos' company Blue Origin launches its New ...

Delta IV Heavy rocket. One is capable of crusing down the highway with a gross combined weight rating (vehicle, passengers and trailer) of 25,400 pounds. The other is easily capable of lifting ...

With the launch Friday and another Falcon 9 flight Monday (this one with a booster on its 15th mission), SpaceX has launched Falcon 9 rockets 423 times. The fleet leader, Booster No. 1,067, has now ...

A graphic below compares New Glenn to the Saturn V and United Launch Alliance's powerful Delta IV Heavy rocket. If successful, Blue Origin's New Glenn rocket will be certified to carry Department ...

There's United Launch Alliance, which finally debuted its long-delayed Vulcan rocket and flew two Atlas V missions and the final Delta IV mission, and Rocket Lab, which launched 16 missions with ...