Accurately modeling irregularly-shaped particles isn’t easy, but a new study found a way to improve a century-old idea.

MILWAUKEE -- Maybe growing up, or still to this day, you wondered how we get rain. We all take this process for granted, and it happens constantly in our atmosphere. It all starts with tiny particles ...

Tiny microplastic particles floating through city air stick to spiderwebs, giving researchers a natural way to capture and monitor this form of pollution.

The atmosphere is full of tiny particles floating invisible to the naked eye, yet these microscopic specks wield extraordinary power over our planet's climate system. From desert dust swept thousands ...