View Full Version : Look to Orion and Help Meaure the Darkness of Your Night Sky

2011-Mar-01, 04:50 PM
How dark are your skies? GLOBE at Night wants to know! Join the 6th annual worldwide GLOBE at Night campaign, which is going on right now in the northern hemisphere. “We are running two campaigns this year, from February 22nd to March 6th and from March 22nd to April 4th in the northern hemisphere and [...]

More... (http://www.universetoday.com/83628/look-to-orion-and-help-meaure-the-darkness-of-your-night-sky/)