The smallest of the "Hedrons" series, Unstable Universe features an astronomy theme. Science fictional cosmic oil painting on the 11" icosahedron (20 regular triangular sides) and the outer space theme continues inside. Viewed through the portal, the interior appears to be larger than the exterior. 2 hidden transparent sections allow external light to enter. Directed light on the side causes stars in a galaxy to glow. A mounting hole on the bottom fits a standard tripod for a display option.