The “Christmas Star” may have been a conjunction of ... It last happened on December 21, 2020, just a few days before Christmas Day, when Jupiter and Saturn were in a close conjunction for ...

Astronomers have long debated the "Christmas Star," a bright heavenly blaze that ... through much of January. At 4:20 a.m. Dec. 21, the winter solstice — the moment when the Earth's axis tilts ...