Eleven of the new moons join existing groups of Jovian satellites, but one of Jupiter's new moons follows a unique, odd path. The giant planet Jupiter has been hiding something — or 12 things ...

ESA's Jupiter Icy Moons Explorer (JUICE) is ultimately headed for the Jovian system, but on Aug. 20, it took a quick look at Earth. The spacecraft returned some very exciting news: the Earth is ...