Move over Grand Canyon, because this hole in the ground was ranked the best roadside attraction in the nation. Here's why it ...
Researchers continue to extract fresh scientific findings from Barringer Meteorite Crater in Arizona, a bowl-shaped depression carved by a space rock roughly 50,000 to 60,000 years ago. Recent ...
Early in the morning of October 6, 2008, astronomers at the University of Arizona detected an asteroid on a collision course with Earth. When other sightings cropped up across the world, the ...
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