The intermediary outside the basis reports, the darkest spot on earthly mainland, was discovered a few days ago under Yu Dengman glacier east Antarctica, this can be amounted to by the gorge deepness of glacial cram sea level is the following 3.5 kilometre, only the ability in ocean has deeper than this gorge. This one discovery is by designation on the Antarctica map of a piece of new scale, the change that this piece of map and this landforms understand antarctic future to may happen to people will crucial. Under photograph comparing, by the side of the nadir dead coast of bare land on the earth, compare sea level only low 413 meters. Come a few years, radar equipment had undertaken scanning to Antarctica, launched layer of OK and penetrable ice to be depicted base the microwave pulse of cliff landforms, but still have big area rare or without data. Antarctica has very vast area as before urgently human exploration