They're like major planets, but not quite. They circle around the sun. They're round. But they haven't cleared everything out of their path. Explore these unusual objects in this book about the dwarf planets.

"Hot diggity dog! Meet Pluto! The runt of a litter of eight planets. Pluto may not be the biggest or fastest planet to revolve around the Sun, but it has a unique story to tell. From the tale of how it was found by humans to its naming as a dwarf planet, it's Pluto's turn to take the spotlight and properly re-introduce itself."--Publisher marketing.

"Five and counting! So far, astronomers have discovered five dwarf planets in our solar system. Pluto, which was once thought of as the ninth planet, is today classified as a dwarf planet. This book looks at the dwarf planets characteristics, size, and orbital patterns, as well as the three rules scientists follow to identify these tiny, round space objects. Every day new discoveries are being made. Who knows how many dwarf planets we will find in...