How to See Rare 'Night-Shining' Clouds, Thanks to Climate Change
by Stephen Johnson from Lifehacker on (#60VZC)
The age of the noctilucent cloud is upon us. Night-shining clouds are historically rare, beautiful formations of shimmering ice crystals hanging in the upper atmosphere that were only visible in the northern parts of the world in years past. They've been steadily creeping south for four decades though, so this could...