Earth is a special planet! This small, rocky planet is the only one known to sustain life. It's also the only planet in our solar system with just one moon! But just because humans call Earth home, that doesn't mean we know everything about it. Scientists continue to learn about Earth using orbiting spacecraft to study it from above. Using clear, concise language, this book explores all the marvelous, mysterious wonders of Earth. Thomas K. Adamson has written dozens of nonfiction books for kids on sports, space, math, and more. He lives in Sioux Falls, South Dakota, with his wife and two sons. He likes reading and playing ball with his boys. He also likes to check scores and stats on his phone.