Mysterious, Glowing Clouds Appear Across America's Night Skies Posted by timf on Friday July 17, 2009 @01:52AM from the wired.com dept. http://www.wired.com/wiredscience/2009/07/nightclouds/ ( 6 comments | 3 points | on HN )
Fixed that for you.
lots of unusual natural things in the headlines today.
But if that were the case, noctilucent clouds would normally be an equatorial -- not a polar -- phenomenon.