Twelve talented young mountaineers, five geologists from the University of Lausanne and four mountain guides take an unprecedented risk in Patagonia. Trained by the great climbers Ralf Weber, Ueli Steck, Denis Burdet and David Fasel, the young people are collecting rock samples from the granite walls of the Paine Towers, which are up to 1000 meters high, on behalf of science. The challenges are enormous: Climbing a big wall at the highest level of difficulty, cloudy weather, relentless wind that...