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Mysterious world beyond Pluto may have atmosphere: astronomers
May 5, 2026
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PARIS (AFP) -- A tiny, little-known world beyond Pluto appears to have an atmosphere, Japanese astronomers said Monday, defying what had been thought possible for icy objects in our cosmic backyard. If confirmed, the roughly 500-kilometer-wide rock would become just the second world past Neptune in our Solar System to host an atmosphere -- after only Pluto itself.

Formerly classified as a planet, Pluto was demoted to dwarf planet status in 2006, in part because astronomers were discovering other
The korea Herald News
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