Two 'super-puff' cotton candy exoplanets are the lightest gas giants ever discovered

Astronomers have discovered two 'super-puff' exoplanets, TOI-791 b and TOI-791 c, which are the lightest gas giants ever identified. These planets orbit a dwarf star 1,110 light-years away and possess densities lower than that of cotton candy.
Why it matters
The discovery of two such rare, low-density planets in a single system provides new insights into how planetary systems form and evolve.
Exoplanets Two 'super-puff' cotton candy exoplanets are the lightest gas giants ever discovered News By Robert Lea published 25 June 2026 "Only a handful of these super-puffy planets are known, and it is even rarer to find two in the same system."
The article is a straightforward scientific report on astronomical findings.
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