Cosmos: A Personal Voyage is a thirteen-part television series written by Carl Sagan, Ann Druyan, and Steven Soter, and hosted by Carl Sagan. Cosmos covered a wide range of scientific subjects, from evolution to astronomy to humanity’s place in the universe.

The series was first broadcast 1980 on PBS, and won both Emmy and Peabody Awards. Cosmos has been broadcast in more than 60 countries and seen by over 500 million people. A companion book, also called Cosmos, was published in 1980; it was a New York Times bestseller for 70 consecutive weeks and won the 1981 Hugo Award for Best Non-Fiction Book.

Cosmos was also the primary inspiration behind John Boswell’s Symphony of Science project.