Planets Author:Ellen Hasbrouck Take a trip through the solar system and discover what¹s really up in the sky! Packed with fascinating facts about planets, comets, asteroids and more, Planets is a galaxy of fun for young astronomers...and everybody who gazes at the night sky! — Create your own universe and solar system with reusable stickers of the planets, asteroids, galaxies,... more » and comets!« less