Don Burgess

Apr. 09, 2010

Tornadoes

The average warning time for a tornado is about 15 minutes. But is that enough time to get your family out of harm's way? In this segment, a look at twisters -- and how the scientists chasing them could help us get better warnings.

storm, weather, tornado, tornadoes, stormchasers, extreme weather

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Comet's Tail Shines Light on Sun

\tIn 2011, comet Lovejoy traveled through the sun’s corona and lived to tell the tale. But its tail was the most telling. Reporting in the journal Science, Cooper Downs, an astrophysicist at Predictive Science Inc. in San Diego, Calif., says that the wiggly path of the comet’s tail helps explain the sun’s magnetic field. \t 

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