Newsweek: Every 101 minutes or so, a Department of Defense imaging satellite circles the Earth, capturing images from the equator to the polar ice caps. It’s that DOD drone (colorfully named the DMSPF-17) that monitors geologic changes, such as the decreasing size of the Arctic and Antarctic ice covers. The images it snaps are the ones most people see of the Earth’s two white domes, which have been steadily diminishing for the past decade. But step closer to the Earth–about 250 miles …