Table of Contents Home Away from Earth p. 4 Water World p. 6 Just Breathe p. 8 Changing Life p. 10 Gravity p. 12 Life on Mars? p. 14 Challenges p. 16 Terraforming p. 18 Growing Life p. 20 Artificial Structures p. 22 Getting There p. 24 Why Move? p. 26 In the Future p. 28 Glossary p. 30 For More Information p. 31 Index p. 32