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Asteroid That Came Close to Earth

Journalist Will Gater, astronomer Bob Berman, astronaut Richard Garriott, and documentary producer Duncan Copp all took part in the talk—a debate on whether or not the Earth is prepared to defend itself against the potential hazard of a major asteroid. http://goo.gl/82f3tM More From The Brief: time.com/newsletter/the-brief #FullNewsAudioAvailable

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