As the sun begins to creep over Saturn's north pole, the Cassini spacecraft has been able to take a set of pictures showing roiling storm clouds and a swirling vortex at the centre of the planet's famed north polar hexagon.
Previous pictures taken by Cassini of storms circling Saturn's north pole were in infrared wavelengths because the area was in darkness, Nasa said.
The new set of raw, unprocessed images was taken in the past few days from a distance of about 400,000km.
The storm activity pictured mimics phenomena Cassini found at Saturn's south pole some years ago.
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