Scientists estimate that the largest canyon may have a depth similar to the Grand Canyon in the US.
The world’s largest canyon can be found under the ice of Antarctica measuring a staggering 621 miles long, according to a recent analysis of satellite data by a team of researchers led by the University of Durham.
The Grand Canyon (pictured above), in Arizona, while of a similar depth, at 277 miles (445 km) long is dwarfed in comparison. The previous record for the longest canyon in the world was achieved in 2013 – also below the ice – but in Greenland. That mega canyon was found to be 750km (460 miles) long.
It is believed that the barrel can have more than 1,000 kilometers long and in some places one kilometer deep, so it is comparable to the Grand Canyon in the US, but much longer.
The canyon system consists of a chain of winding, linear features buried under several kilometers of ice in one of the last unexplored regions of the land surface of the Earth, Princess Elizabeth Land, East Antarctica. They have done very few measurements of ice thickness in this particular area of Antarctica.