Download or read book What Are Exoplanets? | Space Science Books Grade 4 | Children's Astronomy & Space Books written by Baby Professor and published by Speedy Publishing LLC. This book was released on 2020-04-10 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses the definition, distance and composition of some of the known exoplanets. The goal is to expand the knowledge of the universe, and to understand that there could be a million more worlds out there. The information included in this book is the result of years of research by the world’s best astronomers. Grab a copy today.