THE PLANETS AND MOONS IN OUR SOLAR SYSTEM ARE OUT OF THIS WORLD Some are hotter than an oven and some are much colder than a freezer Some are small and rocky while others are huge and mostly made of gas As you explore these worlds you'll discover giant canyons active volcanoes strange kinds of ice storms bigger than Earth and much more The Planetary SocietyⓇ empowers people around the world to advance space science and exploration On behalf of The Planetary Society® including our tens of thousands of members here's wishing you the joy of discovery Onward Bill Nye Bill Nye CEO The Planetary SocietyⓇ
4 12 26 TABLE OF CONTENTS CHAPTER 1 The Sideways Planet CHAPTER 2 Blue Uranus CHAPTER 3 Exploring Uranus Glossary 30 Learn More 30 Index 31
4 CHAPTER 1 THE SIDEWAYS PLANET The Sun is the center of our solar system There are eight planets and they all circle the Sun. Uranus is the seventh planet from the Sun. MEET PLANET URANUS Uranus looks like a smooth blue ball It tilts so far to the side that it's known as the sideways planet Size of Earth left compared to Uranus
5 Uranus is smaller than Saturn a little larger than Neptune and much bigger than Earth About sixtythree sixtythree Earths could fit inside Uranus If Earth were the size of a tennis ball Uranus would be about the size of a basketball URANUS FAST FACTS Size Could fit about sixtythree Earths inside Uranus Distance from the Sun 1.8 billion miles 2.9 billion km Length of day About 17.2 hours Length of year About eightyfour Earth years Number of moons At least twenty-seven
