The Tharsis Region of Mars is Peppered With These Strange Pit Craters. Now They've Been Found Elsewhere - Universe Today

Pit craters are found on solid bodies throughout our Solar System, including Earth, Venus, the Moon, and Mars. These craters – which are not formed by impacts — can be indications of underground lava tubes, which are created when the top of a stream of molten…

Pit craters are found on solid bodies throughout our Solar System, including Earth, Venus, the Moon, and Mars. These craters which are not formed by impacts — can be indications of underground lava t… [+3159 chars]

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