Astronomers believe they've detected an atmosphere around a tiny, icy world beyond Pluto
Summary
Scientists have found evidence that a very small, icy object beyond Pluto has a thin atmosphere. This atmosphere might have formed because of volcanic activity or a comet hitting the object.Key Facts
- The object is about 300 miles (500 kilometers) wide.
- It is the smallest known object in our solar system with a global atmosphere held by gravity.
- The atmosphere could have been created by volcanic eruptions or a comet impact.
- The research was led by Ko Arimatsu from the National Astronomical Observatory of Japan.
- Alan Stern, a NASA scientist who led the New Horizons Pluto mission, said the findings need independent confirmation.
- If confirmed, this discovery could have important scientific consequences.
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