"Ice Crystal Growth in Microfluidics" by Graham Johnson

I don't know about you, but this is what I need more of right now in this weather - visions of very, very cold things! This one in particular is interesting because it is an image taken during research onto ice-binding proteins. The temperature is suddenly lowered, to study the dendritic crystal growth which happens in an enclosed matrix.

https://www.biophysics.org/awards-funding/image-contest#/