1Contents
9Mars: Our Neighbor and Potential Host for Life
2The Search for Extraterrestrial Life
10The Fermi Paradox: Where Is Everybody?
3Humanity’s Endless Curiosity
11Extremophiles on Earth: Life in the Unlikeliest Places
4Ancient Beliefs and Modern Speculations
12The Ethics and Consequences of First Contact
5The Science of Life Beyond Earth
13The Future of Our Search: What’s Next?
