For twenty years… from 2004 to 2024… the Delta IV Heavy rocket has been used to send payloads into space from here on the Space Coast. The final launch for United Launch Alliance’s most powerful rocket is currently still on target for this afternoon…. The Delta IV’s 16th and final flight. Liftoff is set for 1:40PM today from Launch Complex 37 at Cape Canaveral Space Force Station. Today’s mission also marks the 389th flight of the Delta Program, which dates back all the way to 1960. ULA’s next generation rocket… The Vulcan… will take its place.