1Humanity’s Endless Curiosity
8The Fermi Paradox: Where Is Everybody?
2Ancient Beliefs and Modern Speculations
9Extremophiles on Earth: Life in the Unlikeliest Places
3The Science of Life Beyond Earth
10The Ethics and Consequences of First Contact
4UFOs, Alien Abductions, and Public Fascination
11The Future of Our Search: What’s Next?
5SETI and the Search for Signals
12Fact, Fiction, or Somewhere in Between?
