Hubble Captures Changing Weather Patterns on Jupiter and Uranus

The Hubble Space Telescope has been observing the ever-changing atmospheres of Jupiter and Uranus since its launch in 1990. Jupiter's weather is driven from inside-out, with more heat percolating up from its interior than it receives from the Sun, resulting in a system of alternating cyclones and anticyclones. Uranus has seasons that pass by at a snail's pace because it takes 84 years to complete one orbit about the Sun. Hubble's latest view shows the northern pole of Uranus tipping toward the Sun, with a growing polar cap of high-altitude photochemical haze that looks similar to the smog over cities on Earth.