Contemplating the multiverse is mind-blowing, but if you want a truly earth-shattering controversy in physics, you have to go back 500 years to Copernicus' radical theory. Dava Sobel tells his story.
Intelligent. Optimistic. Curious.
Audio
Canadian philosopher Charles Taylor says we're now living in "a secular age," but we're still trying to figure out what a post-religious world looks like, and how we can find meaning in a culture without any over-arching purpose.
Physicist Michio Kaku's Dangerous Idea? A virtual "library of souls."
A few years ago, poet Christian Wiman picked up his pen after a three-year hiatus, when he fell in love and was diagnosed with cancer. Listen in as he reads a poem from "Every Riven Thing," the book of poems that followed. You can also hear our interview with him about the collection.
Daniel Radosh is married to a woman whose family is born-again Christian. They took Radosh to a Christian rock festival and introduced him the world of Christian pop culture.
Copenhagen, Johannesburg, Kyoto, Rio... it can be hard to keep track of all the international summits where global leaders have tried to tackle climate change. Do international climate negotiations do any good? Author and lobbyist Felix Dodds thinks so. Here's why...
Neuroscientist David Eagleman is the author of "Sum: Forty Tales from the Afterlives." He tells...
Sarah Bakewell recommends "The Pillow Book" by Sei Shonagon (translated by Ivan Morris).
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