For some, the shortest day of the year is depressing. For others, it's a reason to celebrate.
Though Christmas remains the most commonly celebrated winter holiday across the United States, the Winter Solstice, Hanukkah, and Kwanzaa all add to the season's spirit of joy and festivity.
The full moon in December has traditionally been referred to as the "Full Cold Moon" or the "Long Nights Moon."
English Heritage shares videos from the event.
The moon is considered "full" when it is positioned exactly opposite to the sun, or 180 degrees away, with Earth aligned directly between the two bodies.
As the U.S. and the rest of the Northern Hemisphere mark the summer solstice, Australia, Antarctica and others are in the middle of winter.