A paper in today's Science magazine reports the discovery of a new material that may be able to with stand irradiation for a thousand years. At present, nuclear waste is stashed away in containers that will start to break down after only a 100 years. Scientists are in a race against time to discover ways of building nuclear trashcans that can survive for much longer. And this new material could - at least in theory - be part of the answer. NPR's John Nielsen reports.

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