ULA's Vulcan rocket to fly by end of 2021.
Created by JoshuaZ on 2020-12-18; known on 2022-01-01; judged wrong by JoshuaZ on 2022-01-01.
- JoshuaZ estimated 55% on 2020-12-18
- Luke estimated 40% on 2020-12-29
- JoshuaZ judged this prediction wrong on 2022-01-01.
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