The NOAA has a very cool film loop (via Gregor Macdonald) showing the progression of the Chinese night sky from 1992-2010.
You can watch the full animation here. Below are 1992 and 2010.
1992
2010
One interesting follow-on observation as made by Jon Belk on Twitter. Note how there's been literally no change to North Korea in this time.

NOAA
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