This educational Glow in the Dark Earth easily stick to walls and ceilings to add a 3D touch to your home planetarium. This Self-adhering Earth sticker measures a sizable 6" in diameter; large enough so you can see all the details of the Earth's surface. In the daylight this large glowing Earth sticker appears as a vivid 3D looking photograph of the Planet as viewed from Apollo 17. In the dark the Earth illuminates with the magical glow of outer space! Each glow in the dark Planet sticker comes complete with an educational Earth info sheet with 19 fun facts that kids will love!