The unusual orbit of a possible dwarf planet, known as 2017 OF201, makes it less likely that our solar system contains a hidden ninth “Planet X”
Več na: https://www.newscientist.com/article/2481477-new-dwarf-planet-spotted-at-the-edge-of-the-solar-system/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home
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