INBOX ASTRONOMY
Hubble Tracks Jupiter's Stormy Weather
Release date: Thursday, March 14, 2024 10:00:00 AM Eastern Daylight Time
Cyclones, Wind Shear, Violent Storms Churn in Jupiter's Atmosphere
The largest and nearest of the giant outer planets, Jupiter's colorful clouds present an ever-changing kaleidoscope of shapes and colors. This is a planet where there is always stormy weather: cyclones, anticyclones, wind shear, and the largest storm in the solar system, the Great Red Spot. Jupiter has no solid surface and is perpetually covered with largely ammonia ice-crystal clouds that are only about 30 miles thick in an atmosphere that's tens of thousands of miles deep and give the planet its banded appearance. The bands are produced by air flowing in different directions at various latitudes with speeds approaching 350 miles per hour. Lighter-hued areas where the atmosphere rises are called zones. Darker regions where air falls are called belts. When these opposing flows interact, storms and turbulence appear. Hubble tracks these dynamic changes every year with unprecedented clarity, and there are always new surprises. The many large storms and small white clouds seen in Hubble's latest images are evidence for a lot of activity going on in Jupiter's atmosphere right now.
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