this post was submitted on 02 Aug 2024
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On first hearing this sounds dumb. Any advantages the moon has are surely offset by the difficulty of getting there and maintaining/resupplying the ark.
For very long-time, high-probability safety, the surface of the Earth is constantly being re-shaped. Whole mountains can disappear in a few million years. Floods, earthquakes, ice, weather alone.
Well... the Moon's surface is also constantly bombarded with rocks... in fact it intercepts a lot of objects that would hit Earth. For this thing to be really safe it would have to buried somewhere, not just left out in the open.
Definitely underground. The temperature swings would be wild otherwise.
Also the full force solar radiation. That's probably not good for DNA samples either.