The signal was recorded for only five seconds as the device traveled at 50 kilometers per second through Jupiter’s polar region, where its magnetic field lines connect to Ganymede.
Local media highlighted that this phenomenon was caused by electrons oscillating at a slower rate than their rotation, causing the radio waves to be amplified very quickly.
The probe was launched on August 5, 2011 and entered the orbit of Jupiter on July 4, 2016 to study the formation and evolution of the planet. “Juno will monitor the gravity, magnetic fields of Jupiter, the dynamics, composition and evolution of the atmosphere,” they said from NASA.