Charles Yu on quantum parenting, time travel and other science fictional paradoxes. Yu is the author of the acclaimed novel "How to Live Safely in a Science Fictional Universe."
Intelligent. Optimistic. Curious.
Audio
Kurt Westergaard is the Danish cartoonist who depicted the Prophet Muhammad with a bomb in his turban in a Danish newspaper in 2005.
Robert Fischell developed several implantable medical devices credited with saving tens of thousands of lives on Earth.
Linda Lear tells Jim Fleming that the creator of Peter Rabbit could have been a scientist.
Steve Paulson talks with Stephen Hawking's co-author, Caltech physicist Leonard Mlodinow about how they wrote the book and what it really says, and doesn't say.
Karen Armstrong is a historian of religion. Her latest book is "The Case for God."
<p>9/11 REMEMBERED: Philippe Petit spent years planning his illegal 1974 performance at the World Trade Center where he tight-rope walked between the Twin Towers. Petit looks back at the event and talks about what the destruction of the Towers meant for him.</p>
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