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.
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He traveled the Amazon in search of drug-induced visionary experiences. That wild adventure led to a lifelong study of hallucinogens.
Ed Ferrara used to be a senior storyline writer for World Wrestling Federation (WWF) now known as World Wrestling Entertainment or WWE.
Bill McKibben has been warning us about global warming since his 1989 book "The End of Nature." In his new Book, "Deep Economy," he makes the case that "more" does not lead to a happier life.
David Grinspoon is the author of “Lonely Planets: The Natural Philosophy of Alien Life.”
Frank Knight talks with Anne Strainchamps about the ancient smells his company creates for natural history museums. He’s especially proud of the T-Rex stink.
Photographer Sarah Sudhoff has been intrigued by mortality for almost as long as she can remember. She's made art out of out of disease, hospitals, funeral homes. In her series, At The Hour of Our Death, she's taking an close look at death.
Candacy Taylor is an award-winning photographer, writer and visual artist.
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