Greenland mega-canyon: Images of the rock formation beneath ancient ice.

Amazing Views of the “Mega-Canyon” Discovered Under Greenland's Ice

Trending News Channel
Videos Highlighting The Latest Search Trends.
Aug. 30 2013 9:30 AM

Amazing Views of the “Mega-Canyon” Discovered Under Greenland's Ice

A newly discovered canyon lying beneath a 4-million-year-old ice sheet in northern Greenland appears to be 750 kilometers long and up to 800 meters deep.

Video by Reuters. 

Videos curated by Slate staff.

  Slate Plus
Foreigners
Sept. 4 2015 12:16 PM How Can This Possibly Happen? Geoffrey Sant wrote about drivers in China who intentionally kill pedestrians. Ask him anything.