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Apparently, a very dim red dwarf and its companion buzzed the outer regions of the solar system about 70,000 years ago, passing less than a light year from the Sun and through the Oort Cloud. This is a very cool bit of information.
It turns out that it probably didn't have much impact on anything in our neighborhood. But it's still cool.
Many details here.
It turns out that it probably didn't have much impact on anything in our neighborhood. But it's still cool.
Many details here.