United Launch Alliance conducted a Flight Readiness Firing (FRF) of its new Vulcan Centaur rocket at Space Launch Complex 41 at Cape Canaveral Space Force Station in Florida on June 7, 2023. "The 202-foot-tall (62-meter) Vulcan Centaur is ULA's rocket of the future, the replacement for the company's venerable Atlas V and Delta IV launch vehicles," says Space.com. Credit: ULA