Jupiter and Saturn megastorms could reveal exoplanets' secrets

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Jupiter and Saturn megastorms could reveal exoplanets' secrets
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Researchers have found that storms on Saturn might rage for longer than expected, and are different from those on its neighbor Jupiter.

Image of Saturn and its Great White Spot storm taken by the Cassini probe on February 25, 2011. Researchers found that the effects of Saturn's storms may ripple for hundreds of years.These massive cyclones on Saturn are comprised primarily of hydrogen and helium gas, as well as methane, water and ammonia, and occur around once every 20 to 30 years. It now appears that the storms can last a lot longer than first thought.

Radio image of Saturn taken with the VLA in May 2015. The broad bright band at northern latitudes is the aftermath of the 2010 storm on Saturn.

"Our result shows that Saturn's tropospheric dynamics may be substantially different from Jupiter's. The Juno microwave radiometer revealed a correlation of brightness temperature anomaly with zones and belts. However, on Saturn, the brightness temperature anomalies at radio wavelengths are dominated by giant storms," the authors wrote in the paper.

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