Cosmos: Possible Worlds is a 2020 American science documentary television series that premiered on March 9, 2020, on National Geographic. The series is a follow-up to the 2014 television series Cosmos: A Spacetime Odyssey, which followed the original Cosmos: A Personal Voyage series presented by Carl Sagan on PBS in 1980. The series is presented by astrophysicist Neil deGrasse Tyson, written, directed, and executive-produced by Ann Druyan and Brannon Braga, with other executive producers being Seth MacFarlane and Jason Clark.

The series consists of 13 episodes that were broadcast over seven weeks. The series had its broadcast television premiere on Fox on September 22, 2020. Braga explains that "Possible Worlds refers to planets far, far away, but also ... the future as a possible world."

Development and production

On January 13, 2018, it was announced that another season titled Cosmos: Possible Worlds would debut in 2019 on Fox and National Geographic channels, to be hosted by Neil deGrasse Tyson and executive produced by Ann Druyan, Seth MacFarlane, Brannon Braga, and Jason Clark. The studio portions were filmed at Santa Fe Studios with plans for location shooting in the Pacific Northwest, Europe, and Asia.

This 13-episode sequel series was slated to premiere on March 3, 2019, on Fox, and the following day on National Geographic. However, from December 2018 through February 2019, Tyson became the subject of sexual harassment allegations.