Stephen Hawking Accepts the Cosmos Award

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The man who is probably the world's most famous living scientist received the Planetary Society's Cosmos award last week. Listen to exclusive excerpts of Professor Hawking's acceptance speech. Emily Lakdawalla reports on her trip to the Lunar and Planetary Science Conference. Bill Nye salutes the return of inflatable space stations and NASA's Institute for Advanced Concepts. What did King George and Uranus have in common?