N.Korea Still Disappears from View at Night

Satellite photographs of North Korea at night still show the country practically invisible at night.

Analysis suggests that per-capita GDP amounts to around US$1,400, the Economist reported early this month citing Austrian research agency World Data Lab.

The luminosity of North Korea's nocturnal landscape declined 40 percent compared from 2013 to 2015 because a drought drastically lowered hydroelectric power output.

The illumination of cities at night is an index to gauge economic activity. "Viewed from space at night, North Korea looks like the recently released first image of a black hole: an abyss, ringed by the brilliant glow of South Korea, China and Russia, from which nothing can escape," the Economist quipped.

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