This mosaic of Jupiter Great Red Spot taken by NASA Voyager 1, shows the area around the northern boundary where a white cloud is seen which extends to east of the region.
The eruption plume of the volcano Loki rises 160 km (100 mi) over the limb of Io.
Europa's lineated but un-cratered face, evidence of currently active geology, at a distance of 2.8 million km.
