Ice crystals covered the branches of a wooded area in London, Kentucky, as bitterly cold weather gripped the area on Tuesday, ...

Snow is made of tiny ice crystals that can transform into a variety of intricate symmetrical patterns forming a beautiful ...

A halo around the sun or moon is an optical phenomenon created by refracted sunlight or moonlight through tiny ice crystals that make up high-altitude clouds. The light is refracted in 22-degree ...

Hospitals across the country are reporting a surge in cold-related injuries — from slip-and-fall fractures to cardiac events ...

After the weekend’s winter storm brought icy conditions to the Dallas-Fort Worth area, you may be wondering what to do if you ...

Residents of Sakhalin, Russia, recently witnessed a striking celestial phenomenon appearing as two suns. This optical ...

The wintry weekend brought a pseudo-hurricane over Lake Michigan, and skyward pillars of light that aren't really what they ...

Ground contamination is an additional factor, experts say. Avoiding yellow snow, which may be tainted by urine or tree bark, ...

On cold, sunny days, tiny ice crystals in the atmosphere can create breathtaking displays like halos, sundogs, and light pillars.

Dr. Andrew Miller, chief division of pediatric emergency medicine at Lehigh Valley Reilly Children’s Hospital, shares the ...

The surrounding air affects how snowflakes develop. In drier air, growth is slow and produces simple, compact or column-like designs that create dry, powdery snow. Humid air accelerates snowflake ...

Cold air allows precipitation to freeze instead of melt, helping snow form, stick and accumulate as winter storms move ...