Science Sep 18

How did life on Earth begin?

It's one of the biggest unanswered questions in science: How did life on Earth begin? Biochemists are breaking apart early Earth molecules to find out how RNA and DNA formed.

Arts Dec 16

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How Johnny Cash spoke to the heart of America

Longtime music writer Robert Hilburn was inspired to write his new book, "Johnny Cash: The Life," after finding that other biographies didn't tell the full story. Jeffrey Brown talks to Hilburn about the legendary musician's authenticity and gift for storytelling,…