FM signals from Jupiter’s moon!

Special Desk

For the first time FM radio signals have been detected from Jupiter’s moon Ganymede. The National Aeronautics and Space Administration (NASA) has detected the signals.

The US space agency however clarified that it is a natural function and not a sign of extraterrestrial life that is the existence of aliens. Signals from Ganymede originated from electrons due to electromagnetic fields. The process causes electrons within to whirl and oscillate much slower than their spin rate.

As a result, all electromagnetic and radio waves get amplified and are picked up by spacecraft hovering in space. These electrons also create auroras in the ultraviolet spectrum. NASA will extend two of its planetary discovery missions including its Juno which detected the cyclotron maser instability from Ganymede in the first place.

Electrons spiralling in Jupiter’s magnetic field are thought to be the cause of the radio noise we hear, NASA explained in its statement.

Like Earth, Ganymede has a liquid iron core that generates a magnetic field, though Ganymede’s field is embedded within Jupiter’s magnetic field. That sets up an interesting dynamic with telltale visuals – twin bands of glowing aurora around Ganymede’s northern and southern polar regions. As Jupiter rotates, its magnetic field shifts, causing Ganymede’s aurora to rock.

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Ganymede boasts a lot of water, perhaps 25 times the volume of Earth’s oceans. Its oceans are estimated to be about 500 miles (800 km) deep. Ganymede is one of five moons in the solar system thought to have oceans hidden below icy surfaces. Two other moons, Europa and Callisto, orbit the big gas planet Jupiter. The moons Titan and Enceladus circle the ringed gas planet Saturn.