Cyclones at Jupiter’s poles are still as mysterious

the juno mission (NASA) is the first to send images of the poles of Jupiter to Earth. Images that surprised astronomers. They discovered there, not only a cyclone perched on each of the poles of the gas giant planet, but also several cyclones surrounding each one of them. The most surprising thing remains the incredible stability that these atmospheric formations seem to show.

On Earth, cyclones appear, move, and eventually dissipate. None of this because of cyclones at Jupiter’s poles. Since the start of observations in 2017, they have not moved. Its form has not even evolved and a international team of researchers I wanted to understand the processes behind this strange phenomenon.

An anticyclonic ring of winds

Juno images continue to show a central cyclone and eight others, roughly equidistant from it and arranged in an octagonal pattern. That’s because of what’s happening over Jupiter’s north pole. Above the south pole, the pattern is similar. But with only five cyclones “satellites” — even if astronomers still don’t know if the peripheral cyclones revolve around the central cyclone — arranged in a pentagon shape.

The researchers studied wind speed and direction using infrared data returned by the Juno mission. Data that provides details of about 200 kilometers. They then followed the idea proposed by other astronomers a few months ago, namely that cyclones at Jupiter’s poles would share similarities with the eddies observed in the earth’s oceans. This time they injected their data into shallow-water models. Their results suggest that there is some kind…

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