Those with in-depth knowledge of Cold War-era military history likely know about Camp Century, a secret American base that was constructed beneath Greenland’s ice sheet. While this isn’t the first time radar technology had detected the Camp Century beneath the ice, the agency’s Uninhabited Aerial Vehicle Synthetic Aperture Radar (UAVSAR) has allowed a more dimensional image to be created. “Without detailed knowledge of ice thickness, it is impossible to know how the ice sheets will respond to rapidly warming oceans and atmosphere, greatly limiting our ability to project rates of sea level rise,” Greene concluded, with NASA adding that the hope is the flight that resulted in the image will allow the agency to conduct future mapping campaigns of Antarctica and Greenland.