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

Tech Insider
Artist's cocept of exoplanet WASP 107b imaged by
This artist's illustration shows what exoplanet WASP 107b could look like based on new data from JWST. This warm gas giant confounded researchers until recently.

NASA, ESA, CSA, Ralf Crawford (STScI)

Subscribe to cosmic-mystery