What is big, with a fluffy, cotton candy-like composition? Turns out, a planet. An international coalition of astronomers has newly discovered an unusual planet, dubbed WASP-193b, that’s about 50% ...

(CNN) — What is big, with a fluffy, cotton candy-like composition? Turns out, a planet. An international coalition of astronomers has newly discovered an unusual planet, dubbed WASP-193b, that’s about ...

"The planet is so light that it's difficult to think of an analogous, solid-state material," said Julien de Wit, MIT professor and study co-author, in a statement. "The reason why it's close to cotton ...

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 ...

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