This image is one of two images from NASA Hubble Space Telescope comparing the movement of Jupiter clouds. The movement of Jupiter's clouds can be seen by comparing the first map to the second one in this animated pair of images. Zooming in on the Great Red Spot at blue (below, at left) and red (below, at right) wavelengths reveals a unique filamentary feature not previously seen. http://photojournal.jpl.nasa.gov/catalog/PIA19648