Secret caverns found on the Moon

Could Moon caves provide shelter for future humans?

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Scientists have discovered a cave on the Moon, which might make an ideal spot for a future Moonbase. The underground chamber, which scientists think could be up to 170 metres below the lunar surface, was discovered in a region of the Moon known as the Sea of Tranquility – the same area where Apollo 11 landed in 1969. A photo shows a large pit visible at the surface, and this is thought to lead to a network of caverns that stretch far underground.