In 2009 I was asked to participate in the 365 Days of Astronomy science podcasting project, and they asked me what I’d like to talk about. I thought about that for a bit and finally came back (as has happened moderately often in my fiction) to the issue of the great cardinal or hinge points of the planetary year; the solstices and equinoxes.
So here’s what I did for them about the Winter Solstice. It’s delightful that 365 Days of Astronomy continues its mission, and will be going (we hope!) for another ten years at least.
Wherever you are: may you enjoy the shortest day of the Northern Hemisphere’s year! From here on, the days just get longer…