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The Search For Alien Life

Who among us hasn’t looked at the night sky and asked, “Is there anybody out there?“ Theoretical physicist Jim Al-Khalili joins us to bring us up to date on the search for life in other parts of the universe. He’s the editor of a new collection of essays by scientists writing on the topic, “Aliens: The World’s Leading Scientists on the Search for Extraterrestrial Life” (Picador).