he deepest point on any of Earth's continents has been discovered by scientists.
The trench, which stretches two miles below sea level, is found beneath the Antarctic ice in what is known as the Denman trough.
Researchers discovered the trough as part of a project to make the most detailed map of the land beneath Antarctica to date. BedMachine is a topography map of Antarctica, showing the ridges, trenches and slopes that make up the landscape. The international team of researchers, led by glaciologists from the University of California, Irvine, created the map using data from 19 research institutions going back over 40 years. It used radar and satellite images to work out the thickness of the ice and the land below, covering an enormous area.
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