HD portrait with plumes for a Jupiter moon - Space and Astronomy. Two plumes of gas emitted from as many volcanic vents, high mountain peaks that cast well-defined shadows and lava lakes that even seem to host islands.
The flybys carried out in recent weeks by Juno are the closest in the last twenty years, NASA notes. The on-board JunoCam instrument "returned spectacular high-resolution images and raw data is now available to process, improve and investigate", continues NASA.