Juno spacecraft detects FM radio signal from Jupiter moon
The Juno spacecraft orbiting Jupiter has found a FM radio sign coming from the moon Ganymede, a finding that denotes a first-time discovery from the moon, as per KTLA sister station KTVX in Salt Lake City, Utah.
“It’s not E.T.,” said Patrick Wiggins, one of NASA’s Ambassadors to Utah. “It’s more of a natural function.”
Juno was traversing the polar area of Jupiter — where attractive field lines associate with Ganymede — when it crossed the radio source. Scientifically, it is known as a “decametric radio emission.”
Here on Earth, we know it as Wi-Fi, and we use it consistently.
As per Britannica.com, Jupiter’s radio emissions were found in 1955, and in the course of the most recent 66 years, an ever increasing number of disclosures have been made about how the signals work.
“A member of the Salt Lake Astronomical society once built an amateur radio telescope that could detect the electromagnetic radiation from Jupiter,” Wiggins said.
Juno’s central goal is to study how the planet Jupiter shaped and how it advanced.
“Juno will observe Jupiter’s gravity and magnetic fields, atmospheric dynamics and composition, and evolution,” as indicated by NASA.
What caused the radio emissions from Jupiter’s moon? Electrons — not outsiders — caused the signs.
The electrons oscillate at a lower rate than they turn, making the electrons amplify radio waves quickly. The cycle is called cyclotron maser instability (CMI).
The electrons that create the radio sign can likewise cause auroras in the far-ultraviolet range, a phenomenon additionally saw by the camera on Juno.
The spacecraft saw the moon’s radio emission for just five seconds. It was flying by at 50 km for every second — a screaming 111,847 mph.