United Launch Alliance’s Delta IV Heavy is the nation’s proven heavy lifter, delivering high-priority mission for the U.S. Air Force, National Reconnaissance Office and NASA. The Delta IV Heavy also launched NASA’s Orion spacecraft on its historic Exploration Flight Test (EFT-1) in 2014.
Space Launch Complex 37
Space Launch Complex 37, the East Coast home of the Delta IV rocket at Cape Canaveral Air Force Station in Florida, is a classic launch pad design with a Fixed Umbilical Tower (FUT) and a Mobile Service Tower (MST). The core stages of the rocket are assembled in the nearby Horizontal Integration Facility, then rolled to the pad for attachment of the payload, final testing and the countdown. The mobile gantry is retracted to unveil the rocket several hours before liftoff.
NASA constructed SLC-37 in the 1960s for uncrewed test flights in the Apollo-Saturn program. The pad was rejuvenated in an extensive overhaul to support the Delta IV starting in the late 1990s. Parker Solar Probe will be the 38th launch from this complex and the 30th by a Delta IV.