The NWS says sleet forms when snowflakes fall through warmer air but don't completely melt. Unlike the thin layer of freezing ...

In these regions, it is so cold (-250 to -150 degrees Celsius) that most compounds including water are frozen as ice on these ...

Swimming kit for colder waters isn't just for winter. Adding neoprene accessories can help you swim in different locations and for longer. Here's ...

and Oklahoma City residents woke up to a thin layer of icy pebbles on every surface. Each type is formed as water falls out of the atmosphere, but what's the difference? It all comes down to air.