Cratered Mercury is the smallest and fastest planet in the solar system. Temperatures there vary more than on any other planet. Learn lots of far-out facts about the closest planet to the Sun. This book features a center spread with fast facts, perfect for report writing.

Our solar system used to have nine planets. But recently, scientists ruled that Pluto was actually a "dwarf planet." So what exactly is a dwarf planet, how many of them are there, and how do scientists study and classify them? All the facts you need, and lots more, are included in this up-to-date book, featuring a center spread with fast facts.

A child astronaut takes an imaginary trip to Mercury, learns about the harsh conditions on the rocky planet, and decides that Earth is a good home after all. Includes solar system diagram, Mercury vs. Earth fact chart, and glossary.

How do scientists know anything about Uranus? Spacecraft from Earth have visited Uranus. Featuring a center spread with fast facts, this book highlights the missions, the men and women who plan them, and more far-out facts about the seventh planet from the sun.

At a scorching 462°C, Venus is the hottest planet in the solar system—and poisonous clouds of gas surround it. Spacecraft from Earth have visited Venus. Learn about the amazing missions and the scientists who plan them This book features a center spread with fast facts, perfect for report writing.

Jupiter is bigger than any other planet in our solar system. It has rings and centuries-old storms. It has more than sixty moons, too—some with underground oceans! Featuring a center spread with fast facts, this great addition to the FAR OUT GUIDE TO THE SOLAR SYSTEM series will tell you everything you need to know about the biggest planet—including missions and the scientists who planned them, and the spacecraft they used to do so.

Earth is the only planet in our solar system that is suitable for life. It has liquid water, oxygen, and enough gravity to hold its own atmosphere. But did you know that Earth is always changing? Scientists have used spacecraft and satellites to learn more about our planet. They can better predict natural disasters like hurricanes, and monitor volcano eruptions and climate changes. Learn lots of far-out facts about our home planet.

All the facts you need, and lots more, are included in this up-to-date book. Learn about the amazing missions to Neptune, the dedicated scientists who plan them, and more far-out facts about the eighth planet from the Sun.

Everything in our solar system orbits the Sun. It is the center of our solar system, and affects everything in it. Robotic explorers have taught us a lot about the star at the center of our solar system. Learn about the amazing missions, the dedicated scientists who plan them, and more far-out facts about the Sun. All the facts you need, and lots more, are included in this up-to-date book.

Have you ever seen a comet or a shooting star? You may think they look pretty, but these giant space rocks can cause major destruction. Scientists keep a close watch on comets and asteroids using high-powered telescopes and spacecraft. Get ready to learn lots of far-out facts about asteroids and comets!