Winter is a common time of year for sun halos. Learn more about a ring effect in the sky
Though sun halos can happen year-round, they are especially noticeable in the winter when ice-filled cirrus clouds are more ...
USA Today19 天
The science of snowflakes: See how they form and why no two are ever alike
The unique steps an ice crystal takes to form a snowflake According ... How many snowflakes fall each winter worldwide each year? The number of snow crystals that fall from the sky each winter ...
Outdoor News5 天
What is lake ice made out of? There’s more to it than you may realize
Wind and rain will break up the ice and one can hear the clinking of millions of floating ice cubes, actually ice crystals, ...
WREX8 天
Winter can bring a variety of forms of ice
The winter months are not just known for snow ... doesn’t change into ice because there isn’t a nucleus to form ice crystals. The water floats around until it hits something like a tree ...