North Korea, the dark area, is sandwiched between China, left, and South Korea in this photograph from the International Space Station.
North Korea, the dark area, is sandwiched between China, left, and South Korea in this photograph from the International Space Station. NASA
North Korea, the dark area, is sandwiched between China, left, and South Korea in this photograph from the International Space Station. NASA

How to track poverty from space

August 21, 2016 11:42 AM