A cave makes for a ready-made dwelling – no digging! Russians are considering a moon cave to house a lunar base. The Japanese Aerospace Exploration Agency (JAXA) released photo (pictured) taken by their lunar orbiter, as reported at The Daily Galaxy: “In 2009…lunar orbiter, Kaguya, spotted a big hole in the moon – sixty five meters across and at least eighty meters deep shown above, and potentially part of a much larger ‘lava tube’.“ The prospect of a porous moon makes it a more interesting destination as caves provide shelter from radiation and meteors.