FM Radio Signal Detected From Jupiter's Moon Ganymede

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Published on April 24, 2021 4:00:35 PM ● Video Link: https://www.youtube.com/watch?v=qu5kxlO6njs

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Nasa claimed that the Juno spacecraft has detected an FM radio signal coming from one of these giant moons. 
Where did the signal come from how did NASA find it? 
Follow me in this video to get to know more about the strange signal detected from Ganymede!
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Something recently happened that caught everyone’s attention: NASA’s Juno spacecraft is still out there wandering space and for the first time since it was launched. It detected an FM radio signal, coming from Jupiter’s moon Ganymede. This is pretty the same kind of signal that we would detect here on Earth. We use this signal almost every day and know it as wi-fi. I bet even you have wifi at home! 
So did we just pick up an alien radio station broadcast from Ganymede? Is there wifi on Ganymede?
To figure that out, we need to know more about this icy alien world. 
Ganymede is the largest moon in the entire solar system. 
If it was orbiting the sun, it would be a planet itself, since it is larger than Mercury!
Although Ganymede doesn’t have an atmosphere, it's the only known moon to have a powerful magnetosphere, which sometimes produces auroras that are affected by the moon’s underground saltwater oceans.
The rocking seen by the auroras gave researchers evidence that the underground oceans on Ganymede are possibly liquid and very salty. Far saltier than the Earth’s oceans. The FM signal that came from Ganymede originated from electrons in electromagnetic fields, a process causing the electrons to whirl and oscillate slower than their spin rate. 
The Juno spacecraft detected a 5-second radio burst in late 2020 when the moon crossed a polar region of Jupiter, where the gas giant’s magnetic field interacts with Ganymede. 
Patrick Wiggins, a NASA Utah ambassador, cautioned it's probably not aliens.
“It’s not E.T.,” Wiggins said. “It’s more of a natural function.”
The Juno spacecraft was moving across a region of Jupiter where magnetic field lines can connect with the Ganymede moon. That's when Juno picked up the radio source.
Juno was sent out to study how Jupiter formed and evolved over time.
Juno's primary goal is to reveal the story of Jupiter's formation and evolution. Using long-proven technologies on a spinning spacecraft placed in an elliptical polar orbit, Juno will observe Jupiter's gravity and magnetic fields, atmospheric dynamics and composition, and evolution. 
It was electrons, not extraterrestrials, responsible for the radio emissions from the moon.
Through a process called cyclotron maser instability, electrons oscillate at a lower rate than they spin which causes them to amplify radio waves rapidly.
Though a significant discovery, the orbiting spacecraft was only able to pick up the radio emissions for just five seconds. Juno hurtled at a blinding speed of 111,847 mph. That's fast enough to cross the entire United States coast to coast in just under two minutes.

But why are radio signals so important?

The researchers are interested in detecting radio emission from planets and other bodies because such information may help scientists decipher what's happening in the same worlds' magnetic fields. Those magnetic fields, in turn, influence conditions on the surface of the planet — Earth's magnetic field protects the atmosphere that makes the world one we can survive, for example. Such magnetic fields can also tell scientists about other qualities of a world, like its structure and history. 
So could there be life on Ganymede?
We said that Jupiter Moon's could host life in the form of extremophile organisms. 
The most known extremophile organism is the Tardigrade, also known as water bears or moss piglet.
As we can say on the Royal society of biology site:
Tardigrades are tiny animals (most less than 1mm) that live in water or the water film that surrounds sediment, mosses and lichens. There are about 1,000 known species, but more are described every year and DNA barcoding suggests that the true total may be much higher.
Because of their unique body plan, tardigrades form their own phylum, Tardigrada.
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Credits: Ron Miller
Credits: Mark A. Garlick / MarkGarlick.com
Credits: Nasa/Shutterstock/Storyblocks/Elon Musk/SpaceX/ESA/ESO
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