United Launch Alliance’s Vulcan rocket launch from Cape Canaveral faced a countdown hold just before liftoff, delaying the 6:30 a.m. EDT target. The mission, featuring a three-hour window until 9 a.m., aims to send an inert payload into deep space for Space Force certification. Equipped with two solid rocket boosters, the Vulcan will follow an easterly trajectory. Weather conditions are 80% favorable, with cumulus clouds as the main concern. No sonic booms are expected in Central Florida.