Copernicus changed the world with his revolutionary idea that the sun, not the Earth, is the center of our solar system. Dava Sobel tells us why this momentous discovery wasn't easy for Copernicus himself.
Intelligent. Optimistic. Curious.
Audio
Edmund Morris has written three books about Teddy Roosevelt; his third, "Colonel Roosevelt" picks up the story after TR left the White House.
David Grinspoon is the author of “Lonely Planets: The Natural Philosophy of Alien Life.”
Candacy Taylor is an award-winning photographer, writer and visual artist.
Fred Burton says we're right to fear the insidious threat of terrorism. Burton was one of the first three agents to serve in the U.S. government's elite Counter-Terrorism Division and is the author of "Ghost: Confessions of a Counter-terrorism Agent."
In an essay called "Fail," Chuck Klosterman examines the thinking behind the so-called "Unabomber Manifesto."
Eric Idle talks with Doug Gordon about death and comedy. And we hear some Monty Python clips.
Hanan Al-Shaykh bookmarks "Season of Migration to the North" by Tayeb Salih.
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