<p>Climate experts are shocked by the rate at which greenhouse gases are rising. New US government figures show CO2 levels have already topped experts' worst-case scenarios. But if driving hybrids and switching to fluorescent bulbs isn't enough -- what is? William Powers presents a vision of truly sustainable living in an off-the-grid, 12x12 cabin.</p>
Intelligent. Optimistic. Curious.
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Have you ever heard that space is a vaccuum? That space is totally silent? Well, neither of those things is exactly true. Thanks to the research of physicist Don Gurnett, we now know there are thin layers of gas in space that produce all kinds of interesting waves — including sound waves. In this segment, we talk with Gurnett about his research and listen to some downright strange and wondrous sounds from both near and deep space.
Brendan Koerner talks about his book, "The Skies Belong to Us: Love and Terror in the Golden Age of Hijacking."
Tad Pierson runs a tour business called “American Dream Safari.” He takes his clients on tours of Memphis and into Mississippi in his 1955 Cadillac named Mansfield.
Dubbed a secular mosque for the Arab world, the Burj Khalifa dominates the Dubai skyline. As it should: it's by far the tallest building in the world. It's so tall that during Ramadan, Muslims living on higher floors have to break their fast 2 minutes later than those on lower floors because they see the sunset later in the day.
Steve Paulson sat down with legendary architecture critic Paul Goldberger to talk all things Burj Kalifa.
The "connectome" is one of the most audacious science projects ever conceived: a detailed map of the human brain, neuron by neuron, synapse by synapse. In this EXTENDED interview, MIT computational neuroscientist Sebastian Seung explains what we can learn.
Legendary showman P.T. Barnum once owned a slave named Joice Heth. Barnum claimed she was 161 years old and a former nanny to George Washington. Benjamin Reiss tells the story in his book "The Showman and the Slave: Race, Death, and Memory in Barnum's America."
The Pacific Gyre is a region in the middle of the Pacific Ocean around which all the major currents swirl. As a result, debris that floats into the gyre gets stuck there.
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