Comment Re:Pretty, but is it real? (Score 1) 93
Pretty, but I'm dubious. Looking at the US, it looks like nearly half the brightness is in a triangle with the southern terminus in Orlando or Miami, and going to the northeast. If brightness is mapped to density of flights, then this says that half of the flights in the US go from the northeast to Florida? I just don't think that's true. Florida is a great attractor... but not that great.
I think the person that gathered the data drew one line for an airport-airport connection, rather than look at the number of flights.
That means that LHR-JFK with it's 16+ flights a day gets the same thickness as JNB-SYD with 1 flight a day.