The planet known for its Great Spot is Jupiter. The Great Spot, or the Great Red Spot, is a massive storm that has been raging for at least 350 years. It is characterized by its reddish color and size, which could fit two to three Earths within it. This storm rotates counterclockwise and is one of the most prominent features observed through telescopes. Jupiter, the largest planet in our solar system, is primarily composed of hydrogen and helium, contributing to its complex atmosphere and dynamic weather patterns, including this iconic storm.