Space Force freezes Vulcan Centaur launches after booster glitches

TL;DR
The U.S. Space Force has paused all national-security launches on ULA’s Vulcan Centaur after booster anomalies recurred on the latest mission (USSF-87) and a previous flight, leading to a multi‑month investigation and corrective actions before flights resume.
- US Space Force pauses national security launches on ULA Vulcan rocket due to booster glitch Space
- Space Force halts Vulcan missions pending investigation into solid rocket issue SpaceNews
- ULA isn’t making the Space Force’s GPS interference problem any easier Ars Technica
- 'Anomaly' with ULA Vulcan rocket reportedly prompts missions pause USA Today
- Space Force pauses national security launches on Vulcan Breaking Defense
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