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

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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.

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

toggle caption
Patrick Eccelsine/Fox

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

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