What happens on December 21, 2020? | The US Sun
www.the-sun.com › news › 1973656Dec 21, 2020 · What is the significance of December 21 in astrology? For 2020, not only does December 21 mark the winter solstice, but also a rare alignment taking place this year most commonly known as the Great Conjunction. The Great Conjunction occurs every twenty years or so, and is when both Jupiter and Saturn align at the same degree of the zodiac.