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ScienceAlert

ScienceAlert

Astronomers find evidence of a moon orbiting a star 635 light-years away

ScienceAlert
Summary
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81% Informative

A giant cloud of sodium is consistent with volcanic activity, orbiting an exoplanet named WASP-49b .

The sodium cloud is moving in the opposite direction that physics tells us it should be going if it were part of the planet's atmosphere.

Gas giants don't have volcanoes, but there did remain a possibility that it was the product of planetary activity, such as a planetary wind.