Year in Review: Science Stories of 2011

From the tsunami-damaged Fukushima nuclear power plant to the end of NASA"s shuttle program, a great deal of science stories made headlines this year. Science writers Mariette DiChristina, Matt Crenson, Steven Levy, and Paul Raeburn join Ira Flatow to discuss the year's top stories in science.

Source: http://www.npr.org/2011/12/30/144485202/year-in-review-science-stories-of-2011?ft=1&f=1007

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