Cassini discovered a shower of ice and organic matter in the atmosphere of Saturn

Before completing its resplendent mission, the Cassini apparatus carried out the Grand Final. This name received 22 final orbits, during which the station made a series of "dives" in the gap between the inner edge of the rings of Saturn and the outer layers of its atmosphere. In a recent issue of the magazine Sciense six articles were published with a detailed analysis of the data collected during the Grand Final. They literally make a new look at Saturn and its famous rings.
"Cassini" found a shower of ice and organic matter in the atmosphere of Saturn. organic through

During the last orbits, Cassini analyzed the composition of matter in the interval between the rings and the atmosphere of Saturn. The device was able to confirm the theory that appeared in the 1980s that the material from the rings gradually settles on the gas giant. But the data collected by the station still seriously surprised scientists. In addition to the expected water ice and silicates, Cassini also found traces of organic matter — methane, ammonia, carbon, nitrogen, butane, propane, and carbon dioxide.The chemical composition of this mixture is significantly different from the organics found on Enceladus and Titan. Consequently, in the Saturn system there are at least three different “stores” of organic substances.
"Cassini" found a shower of ice and organic matter in the atmosphere of Saturn. organic through

But this is not the most interesting. The data collected by Cassini made it possible to estimate the sedimentation rate of material from the rings of Saturn. It is much more than scientists thought, and is about 10 tons per second. This raises a number of new questions for researchers.
"Cassini" found a shower of ice and organic matter in the atmosphere of Saturn. organic through

If the measured “Cassini” speed is constant, then at this rate, Ring D will completely disappear in just a few tens of thousands of years, Ring C - within a few million years. So, the rings of Saturn are much younger than previously thought. If this is a temporary phenomenon, then what caused it? And what is the source of the replenishment of the substance of the rings? Whatever the answers to these questions, it is obvious that the lifetime of such ring systems can be much shorter than previously thought.
"Cassini" found a shower of ice and organic matter in the atmosphere of Saturn. organic through

It is also worth noting that the average particle size in the gap between the rings of Saturn and its atmosphere turned out to be much smaller than previously thought. They are more like haze.According to scientists, there must be some sort of "grinding" of particles. Thanks to him, Cassini was able to travel safely through this region.
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Another very interesting discovery is connected with the magnetic field of Saturn. The Cassini measurements showed that the magnetic axis of the planet was deflected less than 0.0095 ° from the axis of its rotation (for comparison, this indicator on Earth is 11 °). These data are fundamentally contrary to modern models of the formation of a planetary dynamo. According to the current theory, the axis of the magnetic field should be tilted with respect to the common axis of rotation of a celestial body, so that plasma, molten metal, or metallic hydrogen can be generated in its core, producing these fields. In the absence of inclination, the field cannot exist. And, nevertheless, Saturn possesses it. Consequently, this theory also needs serious revision.

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