Knowledges

The science behind the sky

One article per forecast — the physics behind every model, written to be read. A growing library we expand one piece at a time.

Sunrise & Sunset

The science of fire skies

Why sunsets and sunrises turn colorful — from the basics of the sky and light scattering to haze and the geometry behind a fire sky.

4 articles →

Cloud inversion

The science of a sea of clouds

How cold valley air, still nights and terrain fill the low ground with cloud and leave the peaks floating above it.

1 article →

After the rain

The science of rainbows

The strict rule of angles behind an arc that looks like luck — and how it lets you turn around and find one.

1 article →

Milky Way

The science of a dark sky

What decides whether the Milky Way shows on a given night — darkness, the moon, and the season.

1 article →