Dinosaur-Killing Asteroid May Not Have Fueled Global Firestorm After All

January 23, 2015 1:38 PM

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Dinosaur-Killing Asteroid May Not Have Fueled Global Firestorm After All

In this handout from NASA, the giant asteroid Vesta is seen in an image taken from the NASA Dawn spacecraft about 3,200 miles above the surface July 24, 2011 in Space. (Photo by NASA/JPL-Caltec via Getty Images)

This Feb. 14, 2000 photo provided by NASA shows the north pole of the asteroid Eros. The crater seen on the surface of Eros measures 4 miles across. (AP Photo/NASA)

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