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

What is rarer than discovering a "super-puff" planet with densities much (much) lower than those of the solar system gas giants? Discovering two orbiting the same star.That is exactly what astronomers have done, finding two extrasolar planets, or exoplanets, that are super-puff siblings orbiting the same star. Both planets, designated TOI-791 b and TOI-791 c, have densities lower than that of cotton candy, making them the lightest exoplanets ever seen."Only a handful of these super-puffy planets