The toy modeled after the dynamics of an exploding Super Nova! Simply hold the ASTRO-BLASTER® in front of you, drop on a flat surface and watch as only the top ball “blasts off” into the air – UP TO 5 TIMES THE HEIGHT DROPPED! The famous astrophysicist, Dr. Stirling Colgate, created the ASTRO-BLASTER® to demonstrate the awesome kinetic power of a super-nova. Each ASTRO-BLASTER® comes with a story explaining how this toy and a super-nova are related. Each ASTRO-BLASTER® also comes with two extra balls because this much fun can’t be contained indoors! Ages 8 and up.