Keith Ward talks about the nature of the soul.
Lee Smolin tells Steve Paulson about the debate in the blogosphere about string theory's failure to advance the field of physics beyond the accepted model.
Duke University neuroscientist Miguel Nicolelis talks about the possibility of upgrading our brains with computer chips.
In this extended interview, literary scholar Rob Nixon explains why he recently re-read all of Carson’s writing, and says her legacy endures – from her warnings about environmental toxins in “Silent Spring” to her lyrical essays about the wonder of oceans.
Musicologist Rob Bowman tells Jim Fleming about the history of the record company that made Dr. King’s dream a reality in its everyday artistic and business dealings.
How close are we to electing a woman as president? Journalist Rebecca Traister says "next election close."
Max Decharne can tell you lots of things no one will understand any more. He's a "solid pigeon" and "a bit of a fly thing," as he tells Steve Paulson.
Robert Weinberg tells Jim Fleming that superheroes’ powers haven’t kept up with the times and offers more up-to-date explanations of how The Incredible Hulk got that way and why Superman is so strong.