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Mystery as Nasa images show area has changed from blue to gold in just four years | Daily Mail Online

"These two natural colour images from NASA's Cassini spacecraft show the changing appearance of Saturn's north polar region between 2012 and 2016."

'During the seven-year-long Saturnian winter, the polar atmosphere became clear of aerosols produced by photochemical reactions - reactions involving sunlight and the atmosphere. ', "The strange hexagonal structure, seen in the animation above from directly over Saturn's north pole, rotates at the same speed as the planet itself spins on its axis.", "Thermal images revealed that it reached up to 60 miles (97 km) down into Saturn's atmosphere."

'However, the new findings have suggested the winds beneath the jet stream are responsible for jostling this air current into its geometric shape. '

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