ULA's first mission with its Vulcan rocket may slide to January launch window – Spaceflight Now - Spaceflight Now
- ULA's first mission with its Vulcan rocket may slide to January launch window – Spaceflight Now Spaceflight Now
- ULA chief says Vulcan rocket will slip to 2024 after ground system issues Ars Technica
- First Vulcan launch likely to slip to January SpaceNews
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