Veteran explorer Eric Larsen has not only reached both the geographic north and south poles, but also summited Mount Everest. And in 2009 and 2010 he became the first person in the world to reach all three in the span of 365 days, an endeavor that cemented him as one of the most successful American explorers in recent years. But he’s also used to leaving his wife and two young children behind for weeks, which always raises some questions in his mind when he’s alone on the ice.