Fly Through the Colossal 18-Mile-Long Ice Canyon In Antarctica

Remember the18 - mile - foresightful canon that was discovered by NASAat the Pine Island Glacier in Antarctica ? Their researchers just completed the three - dimensional mapping of all its surface with sensational detail , using Digital Mapping System photographs over Airborne Topographic Mapper data .

https://gizmodo.com/this-future-iceberg-would-be-able-to-sink-a-thousand-ti-5855827

The sally organize in the chicken feed ledge that extends from one of West Antarctica ’s quickest - locomote glacier . The path of the go in this vivification stretches about 18 Admiralty mile ( 30 kilometers ) in length ( the factual crack is much longer ) , with an middling width of 240 ft ( about 80 meters ) ; it was 820 feet ( 250 meter ) at its widest . The canyon ranged from 165 to 190 feet deep ( 50 to 60 meters ) , with the floor being rough at the water line of the Amundsen Sea . Radar measuring suggested the ice ledge is about 1,640 feet ( 500 meters ) feet thick , with only 165 to 190 foot of that float above water and the rest submerged .