Scientists believe they found new Grand Canyon in Greenland

CREATED Aug. 31, 2013

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Greenland (KTNV) -- Scientists, with help from NASA radar imaging, said they've found a new Grand Canyon in Greenland.

The "Mega-Canyon" was hidden under a massive sheet of ice.

Scientists from the University of Bristol said it's 460 miles long. That's almost 200 miles longer than the Grand Canyon in Arizona.

But the "Mega-Canyon" isn't nearly as deep.

Researchers think it's been hidden for four-million years.