NASA scientists have found something very exciting in the tail of a comet -- NPR's Alex Chadwick talks to Ira Flatow, host of NPR's Talk of the Nation Science Friday, about what comets and ice cream have in common.
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Alex Chadwick
For more than 30 years, Alex Chadwick has been bringing the world to NPR listeners as an NPR News producer, program host and currently senior correspondent. He's reported from every continent except Antarctica.
Ira Flatow