Black Marble nighttime satellite imagery showing fishing vessel activity in the East China Sea.
So what can you see with nighttime imagery from space? Well, the lights of cities and towns, of course. And some other interesting things: the flaring of natural gas in North Dakota, being treated as a waste product in the Bakken Shale oil-drilling and fracking boom there; flaring offshore too, in the Gulf of Mexico and other locations; fires burning vast areas in Siberia.
And the bright lights of fishing fleets operating around the world.
LINK (via: SkyTruth)