Astrophysicist Neil deGrasse Tyson hosts a new TV series called Cosmos: A Space-Time Odyssey. It's an update of the influential 1980 PBS series Cosmos: A Personal Journey, hosted by Carl Sagan. Patrick Eccelsine/Fox hide caption

itoggle caption Patrick Eccelsine/Fox

Fresh Air Weekend

Fresh Air Weekend: The Cosmos, Harold Ramis, And Protecting Your Data Online

Astrophysicist Neil deGrasse Tyson explains why the cosmos shouldn't make you feel small. Critic John Powers remembers Harold Ramis. And if you think you're anonymous online, think again.

Coming Up

Saturday

View show

Timothy Olyphant plays Deputy U.S. Marshal Raylan Givens on FX's Justified, which is based on a novella by Elmore Leonard. The show's creator, Graham Yost, says the only "tussle" the writers had with Leonard happened during the pilot, over which hat Raylan should wear. Prashant Gupta/FX hide caption

itoggle caption Prashant Gupta/FX
View show

Friday

View show View show

Thursday

View show

Timothy Olyphant plays Deputy U.S. Marshal Raylan Givens on FX's Justified, which is based on a novella by Elmore Leonard. The show's creator, Graham Yost, says the only "tussle" the writers had with Leonard happened during the pilot, over which hat Raylan should wear. Prashant Gupta/FX hide caption

itoggle caption Prashant Gupta/FX
View show