Dear Editor, Dark skies are a good idea.  Maybe I’m being selfish, but I would like to be able to look up at the night sky and see the Milky Way as I did when I was a child. The Milky Way is our home galaxy, folks. It’s 200,000 light years across and one of perhaps a trillion others in the universe. Turning off some lights occasionally and aiming others, so that the light falls on the ground instead of going needlessly  into space, will not be too expensive and might  provide ...