ULA’s Vulcan setback clouds 2026 Space Force launch schedule
ULA’s Vulcan Centaur delivered two Space Force satellites but vented an unusual debris plume from a solid booster, prompting a Space Force pause on all military launches aboard the rocket while investigators determine the cause. A prior similar issue on another Vulcan flight and potential delays to GPS 3 and related missions could push launches into May and beyond, with officials weighing a transfer to SpaceX to avoid cascading delays. ULA still aims for 18–22 Vulcan flights in 2026, but the investigation could stretch months and jeopardize the timetable.