Pluto-Like World's Thin Atmosphere Poses a Mystery for Astronomers

May 08, 2026 Universe Today

Pluto-Like World's Thin Atmosphere Poses a Mystery for Astronomers
By Alan Boyle (https://ift.tt/RIPF8rH)

An artist's conception shows how the light from a distant star would be dimmed and then blocked as a trans-Neptunian object with a thin atmosphere passes in front of it. (Credit: NAOJ)

Astronomers are puzzling over another oddball on the edge of the solar system: This time, it's an icy object less than a quarter of Pluto's size with a thin atmosphere – a layer of gas that's not typically found around objects so small.

May 9, 2026 at 09:22AM
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