Snowflakes are like letters from the sky, each crystal a note describing the atmosphere as it falls to the ground. They float effortlessly, but their creation is one of nature’s most complicated ...

Peer through a magnifying glass at a snowflake, and you’ll see an ice creation more elaborate than anything Martha Stewart could cut from folded paper. So what’s behind the snowflake’s unique and ...

Snowflakes form when supercooled water vapor freezes around particles in clouds. Temperature and humidity dictate snowflake shape; needles form around -5 to -10°C. No two snowflakes are alike due to ...