The first successful Delta launch placed the Echo 1A communications satellite experiment into orbit. The Delta IV Heavy, developed by Macdonald Douglas and Boeing, following the 1997 merger between ...

United Launch Services is a subsidiary of United Launch Alliance (ULA), a 50-50 joint venture owned by Lockheed (LMT) and Boeing (BA), which offers the U.S. with Atlas and Delta families of ...

The Delta IV Heavy features three core stages in a side-by-side configuration, each powered by a single Aerojet Rocketdyne RS-68A engine generating 705,000 pounds of thrust at liftoff.

A United Launch Alliance Delta IV heavy rocket carrying classified spy satellite cargo for the U.S. National Reconnaissance Office lifts off from Space Launch Complex 37B at the Cape Canaveral ...

The final United Launch Alliance (ULA) Delta IV Heavy rocket carrying the NROL-70 mission for the National Reconnaissance Office (NRO) lifts off from Space Launch Complex-37 on April 9 at 12:53 p.m.