ULA conducts successful test-fire of new Vulcan Centaur rocket.

United Launch Alliance (ULA) is set to conduct a Flight Readiness Firing (FRF) of its Vulcan Centaur rocket, the replacement for the Atlas V and Delta IV launch vehicles, at Cape Canaveral Space Force Station in Florida. The FRF is a practice run that will demonstrate day-of-launch timelines and procedures, propellant loading operations, and the countdown through ignition of the engines. If the FRF goes well, Vulcan Centaur will be in the home stretch toward its debut launch, which will send the Peregrine lunar lander toward the moon.