In 2014, Tyson helped revive Carl Sagan's Cosmos: A Personal Voyage television series, presenting Cosmos: A Spacetime Odyssey on both FOX and the National Geographic Channel. Thirteen episodes were aired in the first season, and Tyson has said that if a second season were produced, he would pass the role of host to someone else in the science world. On March 9, 2020, he returned with a follow-up season of Cosmos titled Cosmos: Possible Worlds.