Glow in The Dark Galaxy Wall Art Set - Kids Room DecorGlow in The Dark Galaxy Wall Art Set: This wall art comprises off the galaxy and is a sticker made of a phosphorescent material that absorbs light when it is bright and emits light when it gets dark. By attaching the sticker to the ceiling or wall, you can enjoy the starry sky when you turn the lights off. It emits stored light energy and emits its its own luminescence, so it will glow in the dark. Not powerful luminescence, the visibility will