Not since December 2018 when Comet 46P/Wirtanen passed near the Pleiades star cluster has a naked-eye comet graced the night sky. It reached 5th magnitude at the time and looked like a small wad of ...
A comet first observed more than 70 years ago has returned for one of its periodic visits — and this flyby of the "Christmas comet" is one of the closest in recent history. The comet, 46P/Wirtanen, ...
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