America's amazing, drivable crater: Alamo impact yields secrets

February 10, 2015 12:43 PM

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America's amazing, drivable crater: Alamo impact yields secrets

One of America's biggest impact craters was sliced and diced until it spread across Nevada like a plate of crudités.

Now, after scaling more than 20 mountain ranges in the sweltering desert sun, geologists have reassembled the crater into a semblance of its original shape. Evidence provided by pulverized rocks suggests the crater was more than 90 miles wide, as big as the Chesapeake Bay impact crater offshore Virg...

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