WASP-193b, a giant planet with a density similar to that of cotton candy | ScienceDaily
"To their great surprise, the accumulated measurements revealed an extremely low density for the planet. Its mass and its size, they calculated, were about 0.14 and 1.5 that of Jupiter, respectively. The resulting density came out to about 0.059 grams per cubic centimeter. Jupiter's density, in contrast, is about 1.33 grams per cubic centimeter; and Earth is a more substantial 5.51 grams per cubic centimeter. One of the materials closest in density to the new, puffy planet, is cotton candy, which has a density of about 0.05 grams per cubic centimeter." https://www.sciencedaily.com/releases/2024/05/240514141403.htm
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