Prepare to blast off on an adventure through outer space with this fantastic book of facts exploring what planets are. Discover how planets are formed, why Pluto isn't considered one anymore, and which planets are so far away that they can only be seen with a telescope! Learn about . Why Saturn's spectacular, glittering rings are so bright The astonishing amount of time that a day lasts for on Venus How Mars turned two asteroids into moons . and much more! Packed with fun facts complemented by dramatic, full-color illustrations and dynamic spot images, What Are Planets? is an exciting introduction to the wonders of outer space and the planets in our solar system and beyond!.