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Some planets, particularly young ones, are puffy. These gaseous worlds have size, but lack mass, meaning they have a consistency similar to cotton candy! #CottonCandyDay
go.nasa.gov/3F8lJ2h
#NASAExoplanets
Hubble Observes a Mystery: 'Cotton Candy' Planets
"Super-Puffs" may sound like a new breakfast cereal. But it's actually the nickname for a unique and rare class of young exoplanets that have the density of cotton candy. Nothing like them exists in our solar system.Exoplanet Exploration: Planets Beyond our Solar System