A tiny world beyond Neptune has an atmosphere that shouldn’t exist

On: May 4, 2026

A tiny world beyond Neptune has an atmosphere that shouldn’t exist
A team of professional and amateur Japanese astronomers have found evidence for a thin atmosphere around a small body in the outer solar system. The object is so small that it should not have a sustainable atmosphere, raising questions about when and how the atmosphere formed. Future observations to better characterize the atmosphere will help solve these mysteries.
phys.org
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