Joe’s blog: Rare (for us) optical phenomena seen (TUE-1/7) They come from above — not from extraterrestrials — and are a product of tiny ice crystals hanging in the atmosphere, according to ...

Cold surfaces, tiny bits of dirt, and other ice crystals are all ideal for this. On very cold days during the winter, you may see icicles hanging from yourroof. These are created by water droplets ...

Icy and winter snowy cap Ice cave in mountain, grotto with frozen lake Ice cave in mountain, grotto with frozen lake and hanging icicles inside. Empty cavern, nature landscape background with crystal ...

"When it gets really, really cold, the sun beams are reflecting through ice crystals in the clouds. That's why you see the sundogs appear around the sun essentially. It usually occurs right at the ...