I'm afraid I don't have any pretty pictures to share at the moment, so this screenshot from a video project I'm working on will have to do for now. Look! You can see the milky way! After making some small modifications to my insulated camera enclosure and tricking my Nikon's built-in intervalometer into taking more than 999 pictures, I'm seeing how far I can push my setup. So far, I can manage a bit over five hours at -90. The cold days tend to be the clear ones, so that's when I need to be able to shoot.
It's starting to get really, truly dark now. There's a very faint glow on the horizon if it's a clear day, but if it's overcast or windy (and the two do tend to go together) it can start to get a bit sketchy outside. Just a few days ago the snow was blowing so hard that between that and the exhaust from the LMC I was driving I couldn't see more than a few feet in front of me. I was trying to head out to a building parked at the edge of the operations sector, and ended up in completely the wrong place. I didn't even realize that I was more than a quarter mile from my intended destination until I saw the lights on the water well building. All I could see was that I was still on groomed ground. It gets worse in heavier machines. An LMC off of the hard-packed snow roads floats along happily, but a track loader will sink up to the frame rails and get completely stuck. This is always in my head when I drive out to the dark sector to fuel the labs on bad-weather days. It's not a fun time getting stuck.
Just don't ask me how I know.