Architects have conjured some odd-shaped space habitats over the years—airtight orbs, geodesic domes, and lantern-shaped structures among them. Japanese researchers, however, believe that the optimal extraterrestrial architecture is conical.

At a July 5 conference, a team from Kyoto University and the construction firm Kajima Corporation unveiled renderings of an “artificial gravity living facility” whose shape is conducive to approximating living conditions on earth. The 1,300-ft.-tall rotating structure, dubbed “The Glass,” is designed to complete a full rotation every 20 seconds, using centrifugal force to achieve the “normal gravity”  humans are used to.

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