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Nailing Down the Nature of 'Oumuamua; It's Probably a Comet, but . . .

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Close encounter

I mean, maybe, right? Maybe? Probably not, though. Almost certainly not.

Credit: Columbia Pictures

Shortly before Halloween, the chairman of Harvard's astronomy department openly declared that an interstellar object hurtling through our Solar System might just be part of an extraterrestrial craft. And then . . .  crickets.

From Ars Technica
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