Near-Collision With Other Star Jumbled Up Our Solar System, Physicists Says

From Sabine Hossenfelder.

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In a normal solar system, planets orbit the central star in the same direction on the same plane. Our solar system, though, is a bit different: while most of our planets follow similar orbits along one plane, some of the celestial bodies circle the sun at different angles – or in the entirely wrong direction. In a new paper, a group of researchers say they figured out why. Let’s take a look.

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