In a new study in Nature Astronomy, researchers report a second, super-sized moon orbiting a Jupiter-sized planet beyond our solar system. If confirmed, the sighting could mean that exomoons are as common in the universe as exoplanets, and that big or small, such moons are a feature of planetary systems.
Click here for original story, Astronomers find evidence for a second supermoon beyond our solar system
Source: ScienceDaily