An update on the plane crash in the French Alps. Saudi Arabia launches air strikes against Yemen rebel bases. And President Barack Obama slows U.S. troop withdrawal from Afghanistan. A panel of journalists joins Diane for analysis of the week's top international news stories.
Neil de Grasse Tyson tells his own story of how a city kid became one of the nation’s few African-American astrophysicists. Today, he is director of the newly-renovated Hayden Planetarium in New York City. He’ll discuss his own career and the latest findings on the physics of the universe.
- Neil de Grasse Tyson author, astrophysicist, and director of the Hayden Planetarium in New York City
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