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.
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Agriculture already shapes the globe. With food insecurity growing around the globe, the unpredictabilities of climate change and population growth booming... what will we eat in the future?
Jonathan Foley heads the Global Landscape Initiative at the University of Minnesota’s Institute on the Environment.
Ben Kilham raises orphan bear cubs and then releases them into the wild. Steve Paulson visits Kilham at his home in New Hampshire.
Ayaan Hirsi Ali is a famous critic of Islam. She talks with Steve Paulson about why she believes Islam is inherently incompatible with Western values.
Historian Erik Durschmied tells Steve Paulson about some of the significant battles throughout history that turned on a change in the weather.
Madison, Wisconsin, which recently saw a new type of leaderless social media revolution in full bloom.
Daniel Levitin runs McGill University's Laboratory for Musical Perception, Cognition and Expertise.
Carolyn Spiro and Pamela Spiro Wagner tell Anne Strainchamps that they felt almost psychically connected until they were in sixth grade and Pamela began hearing voices.
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