I admit, looking at images made by the ISS crew or time lapse movies made by orbiting satellites of our planet at night can be quite beautiful and stunning.
Back on Earth, that beauty is nothing more than pollution. Light pollution.
Light pollution is becoming a real issue. Astronomers are not the only ones trying to alarm the government because of the disappearing dark skies (when was the last time you saw the Milky Way when you looked up?) but also biologists and people involved with health care blowing the whistle for people to get aware.
A great documentary about light pollution and the search for darkness is The City Dark.
After watching this documentary, I was quite shocked about the impact light pollution has on human health and the habitat of wild animals.
Not a documentary but, as they call it, a public service announcement about the problems and solutions of Light Pollution is Losing the Dark.
Made by the International Dark-Sky Association and Loch Ness Productions, which can watched and downloaded for free on the internet.
Special dome versions (for displaying in a planetarium or observatory) are available too.