A mysterious Jupiter-sized planet that shouldn’t exist is as puffy as a marshmallow and astronomers think they finally know why

Exoplanet WASP 107b is a gas giant almost as large as Jupiter, but much less massive. Based on this discrepancy, astronomers were unsure how a planet like WASP 107b could exist. But now two independent teams of researchers have harnessed the power of JWST to solve the mystery. In the middle of our cosmic neighborhood, … Read more