Will we ever understand the true nature of dark matter and dark energy? Harvard cosmologist Lisa Randall considers these and other great mysteries in physics.
Intelligent. Optimistic. Curious.
Audio
Novelist Joanna Trollope reads from "Second Honeymoon" and talks about why the empty nest syndrome is particularly difficult for women.
Melissa Fay Greene provides a profile of the AIDS orphans of Ethiopia and one remarkable woman who saved dozens by opening her home to them after the death of her adult daughter from AIDS.
Novelist Jane Hamilton remembers her old piano teacher and their battles over practicing.
In this EXTENDED interview, Adam Mansbach talks about his new novel, "Rage is Back."
Lupe Fiasco is a rap star and a devout Muslim. His debut album is called "Food and Liquor" and was nominated for 3 Grammy Awards.
Historian Orville Vernon Burton tells Jim Fleming about the parallels between Abraham Lincoln and Barack Obama.
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