Jupiter and Saturn to Align on December 21 to Create ‘Christmas Star’ Last Visible 800 Years Ago

When something inordinately rare or unexpected happens, it is said “the planets aligned.” On Dec. 21, the winter solstice, two planets will appear nearly aligned, resulting in an event so uncommon it’s befitting of the saying. At one time, astronomers may have felt it so closely resembled a Christmas miracle — or, perhaps, the star […]

Jupiter and Saturn to Align on December 21 to Create ‘Christmas Star’ Last Visible 800 Years Ago

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