This composite image places one of Juno's new, detailed images of the Great Red Spot on top of an image of the planet captured by Voyager 1 in 1979.
The image from Voyager was taken from a distance of nearly 25 million miles (40 million km), whereas Juno flew just about 5,600 miles (9,000 km) over the Great Red Spot.
In the bottom left corner of Voyager's image is the moon Ganymede.