Swimming South
Pole - Aitken is a lunar crater with a di ameter of 2500 km and a depth of 13 km. It is the largest known c rater on the Moon, not only, but in the whole solar system [need # 160; source] (next to the Hellas Planitia Mars with a diameter of 2100 km). The name comes from the pool after his two points of opposite sides: the crater Aitken and the lunar South Pole. Ring surrounding the pool is visible from Earth as a huge mountain range, sometimes called the mountains Leibniz , the name does not appear in any official publication of the International Astronomical Union.