Home > Guest Relations > Site History > Thermal Mosaic Just beyond the sliding glass doors of Universe of Energy's entrance, is a hallway backed by the "thermal mosaic." This stunning tile mosaic represents a thermal image our Sun's energy. The mosaic wall extends to pre-show entrances at both the far left and right extremes. The image pictured above is the left half of the wall, which angles gently away from the entrance. The right side is similar, with one interesting distinction: a tiny white dot on one of the tiles represents the Earth.