Exploring An Ever-Expanding Universe | WAMU 88.5 - American University Radio
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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

'One Of Us' Examines The Damaged Inner Terrain Of Norwegian Mass Shooter

Journalist Asne Seierstad chronicles the 2011 shooting massacre in her country in her latest book. Critic Maureen Corrigan calls the work "engrossing, important and undeniably difficult to read."
NPR

Natural GMO? Sweet Potato Genetically Modified 8,000 Years Ago

People have been farming — and eating — a GMO for thousands of years without knowing it. Scientists have found genes from bacteria in sweet potatoes around the world. So who made the GMO?
NPR

Former Arkansas Gov. Mike Huckabee Announces Presidential Run

Huckabee, who previously sought the presidency in 2008, hosted a television program on Fox until January, when he ended the eponymous show to consider his political future.
NPR

As Emoji Spread Beyond Texts, Many Remain [Confounded Face] [Interrobang]

There's a growing tendency to bring the tiny hieroglyphs off of phones, but not everyone is fluent. New takes on emoji integration suggest misunderstanding may be remedied with universal translation.

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