On December 30, 2023, the Juno probe passed 2,500 km from the nearest moon to Io Jupiter. From this distance, he took the highest resolution images. Thus, the superficial geological structures are observed with great precision: volcanic craters, cones, mountains, lava lakes…
The Juno mission reached the orbit of Jupiter in 2016 and has since completed 57 rounds around Jupiter and its main moons. In February he approached Io again to collect more data.