A binary star system passed within one light year of our solar system only 70,000 years ago. It may have jostled a bunch of comets out of their orbits at the time.

A binary star system passed within one light year of our solar system only 70,000 years ago. It may have jostled a bunch of comets out of their orbits at the time.

Did a close pass by an alien star system millennia ago rain down comets on the solar system?

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