APOD: Jupiter's Great Red Spot From Voyager I

In the past few years, the size of Jupiter's Red Spot seems to be accelerating, despite previous belief that the spot was shrinking. The storm that is Jupiter's red spot is bigger than Earth. This great spot was not expected and not understood when discovered. The image above is a digitally enhanced photo taken by Voyager I in 1979

http://apod.nasa.gov/apod/ap140518.html