Download or read book Las maravillas de nuestro sistema solar written by Lisa Greathouse and published by Teacher Created Materials. This book was released on 2024 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "People once believed that Earth was the center of the solar system. Scientists finally learned that Earth is one of at least eight planets in our solar system and that all planets travel around the sun. Astronomers now know that our solar system is almost five billion years old and is part of at least 100 billion galaxies in the universe! Scientists continue to make new discoveries about our solar system all the time"--