A fragment of the asteroid that killed off the dinosaurs may have been found...in North Dakota. KNX In Depth got more from Robert DePalma, paleontologist and postgraduate researcher at the University of Manchester in England.

 

<p>A fragment of the asteroid that killed off the dinosaurs may have been found...in North Dakota. KNX In Depth got more from Robert DePalma, paleontologist and postgraduate researcher at the University of Manchester in England.</p>
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