FORT WAYNE, Ind. (WFFT) — The NASA spacecraft Juno recently discovered an FM radio signal emanating from Ganymede, which is a moon of Jupiter.
According to NASA, the spacecraft was traveling across Jupiter’s polar region when it picked up the radio source which is known as “decametric radio emissions” or what we call on Earth, Wi-Fi.
The frequency was picked up for just five seconds but it was enough time for scientists to confirm the source of activity.
The FM radio signal is not an indication of extraterrestrial life and it actually occurred naturally, by electrons.
Electrons oscillate and the wave depends on the kind of atom and the amount of energy.
This is not the first time scientists have made a groundbreaking discovery on Ganymede.
In 2015, the famous Hubble Space Telescope discovered an underground ocean.
Three years later, the Galileo Probe spacecraft observed powerful “chorus waves”.
In essence, chorus waves are electromagnetic waves that can be converted to sound.
The Juno spacecraft launched on August 5, 2011 and it entered the orbit of Jupiter on July 4, 2016.
According to NASA, the goal was to reveal the story of Jupiter’s formation and evolution.
It has observed Jupiter’s gravity and magnetic fields along with its atmospheric dynamics and composition.
Believe it or not, scientists have known about radio waves on Jupiter since the mid-1950.
It was not know until now that Ganymede was emanating an FM signal