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Exploring An Ever-Expanding Universe

Saul Perlmutter shared the 2011 Nobel Prize in physics for his discovery that the universe was expanding at an accelerating rate. Perlmutter explains how supernovae and other astronomical artifacts are used to measure the expansion rate, and explains what physicists are learning about "dark energy" — the mysterious entity thought to be driving the acceleration.
NPR

Why Did Vanity Fair Give 'Belfies' A Stamp Of Approval?

"Selfie" may have been the 2013 word of the year. But "belfies," or "butt selfies" are now in the spotlight. We learn more about why they earned a fitness model a spread in Vanity Fair magazine.
NPR

Chili Say What? Linguistics Help Pinpoint Pepper's Origins

It turns out the first chili peppers were grown by humans in eastern Mexico. And it's not the same region where beans and corn were first grown, according to new ways of evaluating evidence.
NPR

Ohio's Law Against Political Lying Heads To Supreme Court

Can a state law prevent political campaigns from doling out misinformation? Guest host Celeste Headlee learns more from The Plain Dealer's Sabrina Eaton.
NPR

Why Did Vanity Fair Give 'Belfies' A Stamp Of Approval?

"Selfie" may have been the 2013 word of the year. But "belfies," or "butt selfies" are now in the spotlight. We learn more about why they earned a fitness model a spread in Vanity Fair magazine.

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