Light Pollution

The stray light cast into the sky by streetlamps, porch lights, neon signs, and other glowing objects that hinders our visibility of the night sky.

Radio Programs

Dark Parks Unfettered views of the night sky Tuesday, November 6, 2012
Blue Night The night sky gets a little bluer Monday, November 5, 2012
Crater Sipping from a faint celestial cup Saturday, April 9, 2011

Featured Images

Nighttime view of the southeastern U.S. from the International Space Station
Blue Night Monday, November 5, 2012


©2015 The University of Texas McDonald Observatory