Not a real comet, but a jet plane, I think, or perhaps I've spotted a UFO and didn't know it.
I opted to say it was a comet, since today is Friday the 13th... Historically, comets were thought to be harbingers of bad luck. For example, the Bayeux Tapestry shows a comet when Harold of Essex snatched the English throne from William of Normandy, soon to be known as The Conqueror.
Are you superstitious? Will you be cautious today?
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