1. What is cosmology? -- 2. Early scientific cosmology -- 3. Cartesian and Newtonian world systems -- 4. Cosmology after Newton and before Einstein -- 5. Stars -- 6. Galaxies -- 7. Location and the cosmic center -- 8. Containment and the cosmic edge -- 9. Space and time -- 10. Curved space -- 11. Special relativity -- 12. General relativity -- 13. Black holes -- 14. Expansion of the universe -- 15. Redshifts -- 16. Newtonian cosmology -- 17. The cosmic box -- 18. The many universes -- 19. Observational cosmology -- 20. The early universe -- 21. Horizons in the universe -- 22. Inflation -- 23. The cosmic numbers -- 24. Darkness at night -- 25. Creation of the universe -- 26. Life in the universe.