1. The search for life in the universe
2. Impacts, extinctions, and the earliest history of life on Earth
3. The history of the Earth
4. The Earth's geological record and the earliest life
5. Energy and life in unique environments on Earth
6. Origin of life on Earth
7. Requirements for extraterrestrial life
8. Is life on Mars possible?
9. Possible fossil life in meteorites from Mars
10. Implanting life on Mars
11. The exobiology of Venus
12. Titan - a natural exobiology laboratory?
13. Exobiology in the Jupiter system
14. Formation of planets around other stars
15. Searching for planets around other stars
16. The habitability of planets around other stars
17. Intelligent life in the universe
18. Life in the universe
Additional reading and bibliography
Index.
