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Start with the full category, then apply the exact boundary: The three prime crew members of the December 1968 mission. Full names or listed surnames count; backup crew members do not. You only need one qualifying answer. A longer name is not automatically rarer.
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AndersWilliam Anders · 90 points · 6 characters
William Anders flew on Apollo 8, the first crewed mission to orbit the Moon, in December 1968.
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William Anders90 points · Shortest accepted spelling: Anders
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- Apply the complete question boundary: The three prime crew members of the December 1968 mission. Full names or listed surnames count; backup crew members do not.
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Each entry belongs to the bounded set defined by the prompt. The named source supports the underlying facts; our editorial scoring is a separate layer.
Source: NASA · Apollo 8 ↗
Reference version: 2026-10-02. See our answer policy for how we handle aliases and omissions.