How does Jupiter's Great Red Spot stay together for so long?

The Great Red Spot is a huge high-pressure storm in Jupiter’s atmosphere, large enough to swallow Earth. Jupiter’s rapid rotation, which takes only about 10 hours, helps organize powerful bands of winds that can trap storms for long periods. Heat coming from inside Jupiter also fuels atmospheric motion, while the planet’s lack of a solid surface lets the storm persist differently than hurricanes on Earth. Astronomers have observed the Great Red Spot since at least the 19th century, though it may be older. Today it is shrinking compared with its historical size, but it remains one of the most famous features in the Solar System.