ARE these bubbles, bacteria or perhaps space rocks? No – they’re human tears as you’ve never seen them before. Each disc is a tear droplet that has been pipetted onto a glass slide, allowed to ...

In the skies high above, a solitary snowflake is forming. Seeded by a speck of debris—dust, salt, a bacterium carried aloft—the tiny, delicate crystal grows and grows, with ever-more water depositing ...

Snow. It's made up of tiny ice crystals that can transform into a variety of intricate symmetrical patterns forming a beautiful snowflake. Have you ever wondered how snowflakes form? Did you know ...

A winter storm is settling in over the U.S. and soon snowflakes will be falling across the nation. Have you ever wondered how one forms? Snow is made up of tiny ice crystals that can transform into a ...