What is caus­ing Jupiter’s Great Red Spot?

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Jupiter is a gaseous/fluid planet with rapid ro­ta­tion, which causes the winds to or­gan­ise into bands of east­er­lies and west­er­lies, but also causes tur­bu­lence. Vor­tices (cy­clones and an­ti­cy­clones) are a nat­u­ral fea­ture of this kind of tur­bu­lent air flow. the Great red spot is an an­ti­cy­clone, spin­ning in the coun­ter­clock­wise di­rec­tion in Jupiter’s south­ern hemi­sphere.

it is more sta­ble than an an­ti­cy­clone would be on earth be­cause there are fewer dis­rup­tions, like land masses, to cause it to break apart. it is also con­fined by strong winds to not move in latitude, un­like a ter­res­trial hur­ri­cane or cy­clone, mak­ing it even more sta­ble. in essence it is a

storm rolling like a ball bear­ing in a mov­ing chan­nel of winds.

Amy Si­mon is a se­nior sci­en­tist spe­cial­is­ing in plan­e­tary at­mos­phere for NASA

the Great red spot has been ob­served con­tin­u­ously since 1830

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