Carl Sagan's iconic series "Cosmos" will air for the final time on the Science Channel on the 22nd, featuring an all-day marathon starting at 10 AM. Concerns have been raised about why this will be the last airing, with speculation that the Science Channel may not prioritize reruns in the future, potentially limiting access for viewers who wish to revisit the series. Sagan's contributions to making science and astronomy accessible and engaging for the general public are widely acknowledged, with many crediting him for inspiring a lasting interest in these fields. The discussion highlights the significance of Sagan's work and the impact it has had on audiences.