Snowflakes are always hexagonal, but not always branched.

Hexagons in Nature

I don’t know why it surprised me so much that the snowflakes in my digital night photos were hexagonal. But they were, and it did, and the six-sided shape has since taken over a corner of my mind. It is everywhere in nature, in honeycombs and on turtle shells, crystals and snowflakes. The cooling and cracking of lava over centuries…