Pair of ‘super-puff’ planets are lighter than candy floss
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A star named TOI-791 (left) is orbited by two extremely lightweight planets (middle and right). Credit: NASA/Daniel Rutter
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Astronomers have spotted two puffed-up gas giant planets both orbiting the same star1. At around the size of Jupiter but more than 20 times lighter, they are some of the lowest-density planets ever found.
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doi: https://doi.org/10.1038/d41586-026-02114-2
References<br>Dransfield, G. et al. Mon. Not. R. Astron. Soc. 549 , stag864 (2026).<br>Article
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