Listen: Sound of electromagnetic energy moving between saturn, enceladus

Sounds of Saturn: Hear Radio Emissions of the Planet and Its Moon Enceladus.

NASA’s Cassini spacecraft’s Grand Finale orbits found a powerful interaction of plasma waves moving from Saturn to its rings and its moon Enceladus. Credits: NASA/JPL-Caltech
NASA’s Cassini spacecraft’s Grand Finale orbits found a powerful interaction of plasma waves moving from Saturn to its rings and its moon Enceladus. Credits: NASA/JPL-Caltech

A new research by NASA‘s Cassini spacecraft’s up-close Grand Finale orbits demonstrates a shockingly intense and dynamic collaboration of plasma waves moving from Saturn to its rings and its moon Enceladus. The perceptions appear out of the blue that the waves travel on magnetic field lines interfacing Saturn straightforwardly to Enceladus. The field lines resemble an electrical circuit between the two bodies, with vitality streaming forward and backward.

Specialists changed over the recording of plasma waves into a “whooshing” sound file that we can hear – similarly a radio makes an interpretation of electromagnetic waves into music. At the end of the day, Cassini recognized electromagnetic waves in the sound recurrence extend – and on the ground, we can open up and play those signs through a speaker. The account time was compacted from 16 minutes to 28.5 seconds.

Much like air or water, plasma (the fourth state of matter) generates waves to carry energy. The Radio Plasma Wave Science (RPWS) instrument onboard NASA’s Cassini spacecraft recorded intense plasma waves during one of its closest encounters to Saturn.

Ali Sulaiman, a planetary scientist at the University of Iowa, Iowa City, and a member of the RPWS team said, “Enceladus is this little generator going around Saturn, and we know it is a continuous source of energy. Now we find that Saturn responds by launching signals in the form of plasma waves, through the circuit of magnetic field lines connecting it to Enceladus hundreds of thousands of miles away.”

The communication between Saturn and Enceladus is not the same as the relationship of Earth and its Moon. 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. Our own Moon does not collaborate similarly with Earth. Comparable associations happen amongst Saturn and its rings, as they are additionally extremely powerful.

The recording was captured Sept. 2, 2017, two weeks before Cassini was deliberately plunged into the atmosphere of Saturn. The recording was converted by the RPWS team at the University of Iowa, led by physicist and RPWS Principal Investigator Bill Kurth.

The GRL research is available on the American Geophysical Union’s website:

https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2018GL078130

https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2018GL077875