Re: https://jwst.nasa.gov/content/webbLaunch/whereIsWebb.html
I would go : Try to sleep in a tent between x-mas and new year in mountain, on snow...
But I'm biased since I've done it, and despite having a nice -20°C graded sleeping bag the night was not a good one. But that was a time when I was a masochist ( and also somewhat a sadist, since I spread around my misery to the climbing club people that were willing to join ) when it came to winter mountaineering.
One winter, we had cold enough that our camping gas source froze... so making breakfast involved tucking said frozen camping gas sources in the sleeping bag with us on top for half an hour to get them unfrozen enough to prepare a breakfast. In Central France [Sancy Massif], which is not really high mountains.
Note: standard Camping Gaz bottles freeze at -32°C at that time... so obviously at some point the cold went below that during the nitght, we didn't think it would freeze, so we left them outside.
( since then the equipment has evolved a lot and this kind of thing does not happen ( well cannot happen ) except in extreme winter arctic conditions )
Biting the hand that feeds IT
