Trench Deeper Than Grand Canyon Found Under Antarctic Ice
British Scientists recently discovered the Ellsworth Trough, a two-mile deep trench, using radar equipment and NASA satellite imagery.By Christian Bryant | January 14, 2014
Less than six months after British scientists found a trench longer than the Grand Canyon under Greenland's ice sheet, another group of British scientists discovered another huge trench deeper than the Grand Canyon hidden away in Antarctica.
Scientists from Newcastle University and Bristol University traveled across Antarctica, plotting buried sub-glacial terrain using ice-penetrating radar and some of NASA's satellite data. What they found was a trench nearly two miles deep, 186 miles long and 15 miles wide. (Via International Business Times)
For comparison, the National Park Service lists the Grand Canyon's size at one mile deep, 277 miles long and 18 miles wide. (Via National Park Service)