Some of the peculiar aspects of our solar system--an enveloping cloud of comets, dwarf planets in weird orbits and, if it truly exists, a possible Planet Nine far from the sun--have been linked to the close approach of another star in our system's infancy flung things helter-skelter.
Some of the peculiar aspects of our solar system--an enveloping cloud of comets, dwarf planets in weird orbits and, if it truly exists, a possible Planet Nine far from the sun--have been linked to the close approach of another star in our system's infancy flung things helter-skelter.
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