Preserving Dark Skies
January 12th, 2012 | Dark Skies | 1 Comment
Light Pollution: What is it?
Light pollution is any adverse effect of artificial light, including sky glow, glare, light trespass, decreased visibility at night, energy waste, and more.
httpv://www.youtube.com/watch?v=kYCQZJt26zQ
http://mcdonaldobservatory.org/darkskies/