Noctilucent clouds (NLCs) were active over Europe last night. "It was a fantastic display," reports P-M Hedén of Vallentuna, Sweden. "I was up all night watching these wonderful, glowing clouds as they changed in structure and brightness."
Displays like this were once reserved for northern places like Sweden, Canada and Alaska. But in recent years, mysterious NLCs have descended to lower latitudes with sightings as far south as Colorado, Utah and possibly Virginia. No matter where you live, watch the western sky one to two hours after sunset. If you see electric-blue tendrils spreading up from the horizon, you've probably spotted a noctilucent cloud.
Zweden:
(Bericht van 29 juli 2007, www.spaceweather.com)
Displays like this were once reserved for northern places like Sweden, Canada and Alaska. But in recent years, mysterious NLCs have descended to lower latitudes with sightings as far south as Colorado, Utah and possibly Virginia. No matter where you live, watch the western sky one to two hours after sunset. If you see electric-blue tendrils spreading up from the horizon, you've probably spotted a noctilucent cloud.
Zweden:
(Bericht van 29 juli 2007, www.spaceweather.com)
Bericht laatst bijgewerkt: 30-07-2007 11:55