The article discusses research published in the journal "Monthly Notices of the Royal Astronomical Society" suggesting that the minor planet Sedna might have originally orbited a star other than the sun. According to astronomers Lucie Jílková and Simon Portegies Swart, the sun may have captured Sedna into its own orbit. Sedna's discoverer, astronomer Mike Brown, argues that Sedna is native to the solar system and was pulled outward by the gravitational forces of other stars.
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