Sound of electromagnetic energy moving between Saturn, Enceladus - Physorg

NASA news Cassini space probe

This is the first time that waves that travel on magnetic fields on lines directly connecting Saturn with Enceladus have been detected. NASA described it as resembling an electrical circuit, with energy flowing back and forth.

These particular intense plasma waves were detected during Cassini's one of the closest encounters to Saturn and picked up by spacecraft's Radio Plasma Wave Science (RPWS) instrument.

Plasma waves in the audible frequency range are electromagnetic, and that's exactly what they got Cassini. Scientists found was that not only was the plasma interaction remarkably powerful, but that the signals could be sped up from a duration of 16 minutes to 28.5 seconds and converted into an audio file.

Plasma is called "the fourth state of matter" and it is not the gas, liquid or solid.

To capture the sounds of plasma waves between Saturn and its satellites, Cassini used his tool recipesmenus waves.

Ali Sulaiman, planetary scientist at the University of Iowa said, 'Enceladus is this little generator going around Saturn, and we know it is a continuous source of energy.

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Sulaiman is lead author of two papers on this discovery.

NASA says Saturn and Enceladus react differently to each other than Earth to our moon because Enceladus is inside Saturn's magnetic field. Enceladus is submerged in Saturn's magnetic field and is topographically dynamic, a radiating crest of water vapor that winds up ionized and fills the earth around Saturn.

They have taken these interactions, which were captured by the Cassini spacecraft during its two-decade long visit to the planet and its moons, and released them to the public on YouTube in a format that allows everyone to listen. Comparable associations happen amongst Saturn and its rings, as they are additionally extremely powerful.

NASA said the plasma waves were detected on September 2, 2017, about two weeks before Cassini ended its mission with a bang by deliberately crashing into Saturn. The RPWS instrument was built by the University of Iowa, working with team members from the USA and several European countries.

The Cassini-Huygens mission is a cooperative project of NASA, ESA (European Space Agency) and the Italian Space Agency.

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