Second 'Great Spot' found at Jupiter, cold and high up
Another "Great Spot" has been found at Jupiter, this one cold and high up. Scientists reported Tuesday that the dark expanse is 24,000 kilometres across and 12,000 kilometres wide. It's in the upper atmosphere and much cooler than the hot surroundings, thus the name Great Cold Spot. And unlike the giant planet's familiar Great Red Spot, this newly discovered weather system is continually changing in shape and size. It's formed by the energy from Jupiter's polar auroras. Read more