A Collapsed Martian Lava Chamber, Seen From Space

This HiRise image of Hephaestus Fossae shows a volcanic area that's collapsed into a pit. We should explore it. Image Credit: NASA/JPL-Caltech/UArizona

Lava tubes and chambers attract a lot of attention as potential sites for bases on the Moon and Mars. They provide protection from radiation, from temperature swings, and even from meteorites. They beg to be explored.

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