noctilucent
Since their discovery 120 years ago, strangely luminescent clouds called noctilucent clouds have been creeping slowly toward the equator.
Once confined to Earth's poles, the bizarre clouds have now been spotted above central Colorado, and they appear to be getting brighter and more numerous, too, said David Rusch, a University of Colorado atmospheric scientist.
This hauntingly beautiful noctilucent cloud was photographed over the Juneau, Alaska, ice field in 1998. Once confined to Earth's poles, the clouds have been spotted above Colorado.

http://www.coasttocoastam.com
http://www.denverpost.com/ci_5579483
Cool!
Once confined to Earth's poles, the bizarre clouds have now been spotted above central Colorado, and they appear to be getting brighter and more numerous, too, said David Rusch, a University of Colorado atmospheric scientist.
This hauntingly beautiful noctilucent cloud was photographed over the Juneau, Alaska, ice field in 1998. Once confined to Earth's poles, the clouds have been spotted above Colorado.

http://www.coasttocoastam.com
http://www.denverpost.com/ci_5579483
Cool!
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Again, Bushes fault! Don 0 -
Does Algore know about this? I guess I'll go buy some more carbon credits! 0 -
Those are beautiful. I've never heard of them before.
Are there any particular weather conditions that bring them?? ...other than cloudy.
Doug0 -
Its Aliens[:p] 0
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