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This nearly inexplicable exoplanet has the density of cotton candy

The exoplanet WASP-107b may be as large as Jupiter, but this super-puff planet only contains one-tenth as much mass as the king of our Solar System. The density of this world is lower than what astronomers thought possible. The discovery of this bizarre exoplanet — sometimes called a cotton candy planet — provides astronomers with a unique target for further study. “With a mass in the Neptune regime and a radius of Jupiter, WASP-107b presents a challenge to planet formation theories. Meanwhile, the planet’s low surface gravity and the star’s brightness also make it one of the most favorable targets for atmospheric…

This story continues at The Next Web

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