In April 2024, flying over the frozen expanse of Greenland, the Gulfstream III NASA research aircraft had been conducting routine surveys of Arctic ice sheets when their radar instruments captured an image that defied explanation.Cryospheric scientist Chad Greene recalls the moment when they spotted the impossible: (QUOTE) “We didn’t know what it was at first.”Deep under the ice, stretching for miles was the unmistakable geometry of human engineering. Large structures, perfectly preserved. As the crew rushed to contact the base, the true nature of their discovery began to unravel. What they had found was Camp Century, a highly classified Cold War facility built with a single, terrifying purpose: to be the last resort during a nuclear armageddon.