The Delta IV is a family of expendable launch vehicles developed by United Launch Alliance (ULA) to transport payloads into space. It is designed to carry satellites and other cargo for various missions, including those for the U.S. government and commercial customers. The rocket comes in different configurations, allowing it to lift varying weights depending on the mission requirements. First launched in 2002, the Delta IV has been a reliable option for launching payloads into low Earth orbit and beyond. It features a powerful core stage and can be augmented with additional boosters for increased thrust. The rocket's versatility and performance have made it a key player in the space launch industry.