The second edition to the popular cosmology textbook has appeared in June 2020. The third edition, which fixes many issues and typos and includes all figures printed in color, was published in April 2025.

Where to buy

From the Publisher (third edition).

From Amazon (third edition).

Corrections

See here for a summary of the known corrections and clarifications. All of the corrections known up to early 2025 are fixed in the third edition. Please contact us with any further issues.

Contact the authors

Questions, corrections, and feedback are very welcome under this email.

Note that typed solutions to the homework problems are not available.