NASA scientists found Camp Century, an abandoned Cold War military base, during a flight to map the Greenland Ice Sheet.

NASA scientists conducting surveys of arctic ice sheets in Greenland got an unprecedented view of an abandoned "city under the ice" built by the U.S. military during the Cold War.

Nearly six decades later, however, experts can still catch glimpses of Camp Century—provided they have the proper underground radar equipment. And NASA Earth Observatory’s November 25, 2024, Image of the Day highlights just such an occasion.

NASA has made a remarkable discovery while flying over the arctic ice in Greenland during an April 2024 survey. The radar instrument onboard NASA's Gulfstream III aircraft spotted an abandoned "city under the ice,