Even Deeper 'Grand Canyon' Found Under Antarctic Ice - It's almost 2 miles at its deepest

Even Deeper 'Grand Canyon' Found Under Antarctic Ice - It's almost 2 miles at its deepest: "(NEWSER) – It looks like the Grand Canyon has some pretty stiff competition near both poles. In August, scientists announced they had found a Greenland canyon that dwarfs the famed one in Arizona. Now, researchers have repeated the feat—and then some—in the Antarctic. Phys.Org reports that a group of UK scientists used satellites and radar to study the Ellsworth Subglacial Highlands, an ancient mountain range buried under more than a mile of ice in West Antarctica. What they found: a mammoth valley almost 1.9 miles deep in places, now named the Ellsworth Trough. As Gizmodo points out, that's much deeper than the Grand Canyon, which is up to a mile deep."

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