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It s a moment that many people were talking about all month, and now it s finally come. Monday night, observers around the world were able to witness an incredible event in the night sky that has not been seen in almost eight centuries.
The two largest planets in our solar system, Jupiter and Saturn, aligned on Dec. 21 to create what s sometimes referred to as the Christmas Star .
When the planets lined up on the day marking the start of the winter solstice, they appeared to form a double planet.
WATCH Griffith Observatory s LIVE Feed of the Conjunction:
It s a rare event and one that hasn t been seen since the Middle Ages, according to Rick Larson from the Star of Bethlehem documentary.