Whether you experience winter in sunny California or are hunkering down, preparing for snow, snow, snow, the winter solstice means the same thing for us all, scientifically speaking. December 22 marks this year’s winter solstice which occurs at the exact moment when the Earth’s polar hemisphere is farthest away from the sun, resulting in the day of the year with the longest night and shortest day. From reenacting ancient celebrations to taking a hot citrus bath, this day continues to be recognized universally.