NASA recently released an image of one of Jupiter's lesser known great storms, taking place on the mega-planet's northern polar region. Called an "anticyclone," the 3,700-miles-wide weather phenomenon has winds that flow in the direction opposite to that of the general region.
Two citizen scientists, Gerald Eichstädt and Sean Doran, used data from the Juno space probe to process the image. More at NASA/JPL.