DEL 4 manages weapon system architectures and ensures operations are intelligence-led, cyber-resilient and driven by innovation, while postured to operate in a contested, degraded and operationally-limited environment. DEL 4 is one of 11 mission-oriented Deltas within the United States Space Force.

Delta IV was a group of five expendable launch systems in the Delta rocket family. It flew 45 missions from 2002 to 2024. Originally designed by Boeing's Defense, Space and Security division for the Evolved Expendable Launch Vehicle (EELV) program, the Delta IV became a United Launch Alliance (ULA) product in 2006.

The Delta IV Heavy (Delta 9250H) was an expendable heavy-lift launch vehicle, the largest type of the Delta IV family. It had the highest capacity of any operational launch vehicle in the world after the retirement of the Space Shuttle in 2011 until the Falcon Heavy debuted in 2018, and it was the world's third highest-capacity launch vehicle ...

The Delta IV Heavy rocket was a workhorse for the National Reconnaissance Office (NRO) launching 12 missions delivering critical national security payloads. The heavy-performance rocket is recognized for delivering high-priority missions for national security and NASA's first Orion spacecraft on an uncrewed flight test and sent the Parker Solar ...

Apr 9, 2024 · Liftoff of the Delta 4 Heavy rocket from Space Launch Complex 37 (SLC-37) at Cape Canaveral Space Force Station occurred at 12:53 p.m. EDT (1653 UTC).

Apr 9, 2024 · United Launch Alliance’s Delta IV rocket has successfully launched Tuesday on its final flight, the NROL-70 mission for the National Reconnaissance Office.

Mar 27, 2024 · Now, United Launch Alliance's last Delta IV Heavy rocket is set to lift off Thursday from Cape Canaveral Space Force Station, Florida, with a classified payload for the National Reconnaissance...

Apr 9, 2024 · After six decades of launches, the liftoff of the last-ever Delta rocket on Tuesday (April 9) brought with it a change in the way the U.S. sends satellites, interplanetary probes and spacecraft...

Delta IV is a family of expendable launch vehicles designed to launch payloads into orbit for the United States Air Force Evolved Expendable Launch Vehicle (EELV) program and commercial satellite business.

Aug 26, 2014 · The Delta IV is a member of the Evolved Expendable Launch Vehicles family capable of launching single or multiple payloads from both the Eastern and Western Ranges. A Delta IV Heavy carried the Orion Multi-Purpose Crew Vehicle in …