KA-BOOOOM! The Universe began about 15 billion years ago with a tremendous explosion called the "Big Bang." We've captured a miniature Big Bang explosion in this package of stars. When you open it you can transform your ceiling or wall into a universe complete with glowing galaxies and dazzling constellations! Contains 20 plastic glow-in-the-dark Astro shapes and adhesive putty. The Astro shapes included are: planets, stars, meteors, a moon, nebula and comet.