Simone Moro's winter ascent of Nanga Parbat
Credit: Yasir Nisar / Getty Images

Simone Moro, a 46-year-old Italian climber, is working his way up Pakistan's Nanga Parbat, the ninth-highest mountain in the world. Though he's already been pushed back to his base camp by snow, his dispatches show that he's optimistic about completing the first winter ascent. Aside from temperatures that can plunge to nearly 60 degrees below zero, the expedition comes with an added element of danger: In June 2013, 11 climbers were murdered by local Taliban soldiers. In an interview with 'The Guardian,' Moro gives his attempt a 10 to 15 percent chance of success. On Nanga Parbat, that's pretty solid.