Surprise! Jupiter Has a Great 'Cold' Spot, Too

Jupiter is famous for its Great Red Spot, a storm twice the diameter of Earth that rages on the gas giant's surface. Now, researchers have found that it has a second great spot, almost as large — this one, a Great Cold Spot caused by the planet's vibrant auroras. Researchers first detected the ever-changing Great Cold Spot in data from the Very Large Telescope in Chile, and went back to track its existence over a 15-year period in observations from another telescope.