A researcher using a UV flashlight to see whether some backyard frogs glow in the dark (they didn't) happened to turn his light on a flying squirrel landing on a nearby bird feeder. He was met with a bright neon pink reflection.
An atmospheric scientist explains why water can do some strange-looking things at very cold temperatures, and what's different about snowfalls on Mars.
Here's the 2nd video in the Chasing Darkness series, a stargazing destination guide. This episode: Skies over Oregon's Cascade Mountains and Alvord Desert.