Comments URL: https://news.ycombinator.com/item?id=50472490
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Source：https://www.smithsonianmag.com/smart-news/astronomers-found-a-mysterious-object-orbiting-far-beyond-pluto-it-could-be-a-new-dwarf-planet-hidden-in-our-solar-system-180989857/
Dwarf planet candidate appears which takes roughly 280 years to orbit our sun
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Source：https://www.smithsonianmag.com/smart-news/astronomers-found-a-mysterious-object-orbiting-far-beyond-pluto-it-could-be-a-new-dwarf-planet-hidden-in-our-solar-system-180989857/Related posts
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