Does WASP-49b Host Volcanic Moon Like Jupiter’s Io?

https://www.jpl.nasa.gov/news/does-distant-planet-host-volcanic-moon-like-jupiters-io/?utm_source=iContact&utm_medium=email&utm_campaign=1-nasajpl&utm_content=exomoon20241010

The existence of a moon located outside our solar system has never been confirmed but a new NASA-led study may provide indirect evidence for one.

New research done at NASA’s Jet Propulsion Laboratory reveals potential signs of a rocky, volcanic moon orbiting an exoplanet 635 light-years from Earth. The biggest clue is a sodium cloud that the findings suggest is close to but slightly out of sync with the exoplanet, a Saturn-size gas giant named WASP-49 b, although additional research is needed to confirm the cloud’s behavior. Within our solar system, gas emissions from Jupiter’s volcanic moon Io create a similar phenomenon.