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 ...

With a camera-equipped microscope of his own making, Kenneth G. Libbrecht shoots some of the world’s most stunning photographs of snowflakes. Since October, four of the physicist’s images have adorned ...

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 ...

Get unlimited access to ad-free articles and exclusive content. Winter snowstorms, like the Nor'easter that just slammed New England, transform gray days into winter wonderlands. So while you're stuck ...