THE PLANETARY SOCIETY MERCURY A WORLD OF EXTREMES Bruce Betts PhD Lerner Publications Minneapolis
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
30 30 31 4 TABLE OF CONTENTS CHAPTER 1 A World of Extremes CHAPTER 2 Planet of Craters 12 CHAPTER 3 Exploring Mercury 18 Glossary Learn More Index
