ULA’s Vulcan setback clouds 2026 Space Force launch schedule

TL;DR Summary
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.
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- US Space Force Pauses Flights on Boeing-Lockheed’s Vulcan Rocket Bloomberg
- Space Force Pauses Vulcan Missions amid Anomaly Investigation Air & Space Forces Magazine
- ULA isn’t making the Space Force’s GPS interference problem any easier Ars Technica
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