Published: Thu, July 12, 2018
Science | By Michele Flores

NASA spacecraft recorded odd sounds from Saturn as it dive-bombed planet

NASA spacecraft recorded odd sounds from Saturn as it dive-bombed planet

New research from NASA's Cassini spacecraft's up-close Grand Finale orbits shows a surprisingly powerful and dynamic interaction of plasma waves moving from Saturn to its rings and its moon Enceladus. "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".

It is known that in space there is no real sound and radio waves may not sound.

Enceladus is the most remarkable satellite of Saturn among the other 62 and is also touted to be one of the most probable sites of extraterrestrial life.

During the movement along the lines of the magnetic field, free electrons and ions in fractions of plasma are accelerated and radiate electromagnetic waves, which are called plasma. This comes from data that Cassini collected based on the ice that it regularly spews into Saturn's rings.

Researchers converted the recording of plasma waves into a "whooshing" audio file that we can hear - in the same way a radio translates 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. Now NASA has compressed the audio time to 28.5 seconds, and decreased the wave frequency by a factor of 5, and you can conveniently tune in on your computer.

Former Catalan leader can be extradited on corruption charges, German court rules
A German court chose to allow former Catalonian leader Carles Puigdemont's extradition to Spain for misuse of public funds. Puigdemont hailed the decision as a victory, tweeting "we have defeated the central lie of the (Spanish) state".

Trump arrives in 'hot spot' Britain, questioning May's Brexit plan
Mr Trump is hardly likely to catch a glimpse of the six metre giant orange inflatable blimp that depicts him as a screaming baby. Trump next heads to Windsor Castle later Friday for tea with the queen, as protesters stage a mass demonstration in London .

You need to see this incredible footage from NYUAD
However, this ice sheet is becoming small due to increased melting and warming temperatures in the region mean more loss of ice. It's a tabular iceberg, long and flat; in the video, you can also see tall, thin pinnacle icebergs crack off and flip over.

It is common knowledge that sound can not travel through a vacuum, so how did NASA get a sound file?

Much like air or water, plasma (the fourth state of matter) generates waves to carry energy. The perceptions appear out of the blue that the waves travel on magnetic field lines interfacing Saturn straightforwardly to Enceladus.

Ali Sulaiman from the University of Iowa who is an expert on the study of the planets explains the phenomenon this way: "Enceladus acts as a small generator of electromagnetic waves".

One bonus of the last days of the Cassini mission was that the orbiter's Radio Plasma Wave Science (RPWS) instrument picked up these radio signals on September 27, 2017, which were relayed back to Earth for analysis before the probe burned up in Saturn's atmosphere.

The study was first published by the American Geophysical Union.

Like this: