EXPLAINER: One weather system floods St. Louis and Kentucky

Hundreds of miles apart, but still connected by the same stubborn weather system, urban St. Louis and rural Appalachia are showing how devastating flash flooding can be when souped-up storms dump massive amounts of rain with ...

NASA estimates metrics of exploding meteor that shook ground

A meteor that caused an earthshaking boom over suburban Pittsburgh on New Year's Day exploded in the atmosphere with an energy blast equivalent to an estimated 30 tons (27,216 kilograms) of TNT, officials said.

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