On a related note, a team has just set off to attempt a summit of K2 in winter -- a feat thought physically impossible: https://news.nationalgeographic.com/2017

On a related note, a team has just set off to attempt a summit of K2 in winter -- a feat thought physically impossible: https://news.nationalgeographic.com/2017/12/K2-mountain-winter-climb-poland-spd/ https://news.nationalgeographic.com/2017/12/K2-mountain-wint...