The planet known for having a Great Red Spot is Jupiter. This colossal storm has been raging for at least 350 years and is characterized by its reddish hue and massive size, capable of fitting two to three Earths within it. The Great Red Spot is an anticyclonic storm, meaning it rotates counterclockwise in the planet's Northern Hemisphere. Jupiter's atmosphere is composed predominantly of hydrogen and helium, contributing to the dynamic and turbulent weather patterns observed. The study of the Great Red Spot and other storms on Jupiter aids scientists in understanding planetary atmospheres and weather systems, both on Jupiter and Earth.