{"date":"2025-12-14","explanation":"What would it be like to fly over the larges t moon in the Solar System? In 2021, the robotic Juno spacecraft flew past Jupit er's huge moon Ganymede and took images that have been digitally constructed int o a detailed flyby. As the featured video begins, Juno swoops over the two-toned surface of the 2,000-km wide moon, revealing an icy alien landscape filled with grooves and craters. The grooves are likely caused by shifting surface plates, while the craters are caused by violent impacts. Continuing on in its orbit, Jun o then performed its 34th close pass over Jupiter's clouds. The digitally-constr ucted video shows numerous swirling clouds in the north, colorful planet-circlin g zones and bands across the middle -- featuring several white-oval clouds from the String of Pearls, and finally more swirling clouds in the south.","media_typ e":"video","service_version":"v1","title":"Juno Flyby of Ganymede and Jupiter"," url":"https:\/\/www.youtube.com\/embed\/CC7OJ7gFLvE?rel=0"}