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Did you Know? Jupiter's Great Red Spot is actually a planetary-sized storm that has been raging on for centuries
Giovanni Cassini, a famous Italian astronomer, discovered a massive blemish south of Jupiter's equator in 1665. This 'Great Red Spot,' as it is still known today, has been a source of debate among astronomers for centuries. Some believe the feature, which is large enough to hold 2-3 planets the size of Earth's diameter, is a massive storm. NASA scientists discovered this after the Voyager 1 mission completed a flyby of the planet in 1979.