Mare Tranquillitatis pit solves these problems. And there are likely many more c... | Hacker News

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drclau on Oct 20, 2024 | parent | context | favorite | on: The tiniest of impact craters

Mare Tranquillitatis pit solves these problems. And there are likely many more caves that haven't been discovered yet.

https://en.wikipedia.org/wiki/Mare_Tranquillitatis_pit

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