The space agency says Jupiter has 79 moons53 of which names are and 26 of whom don’t contain. The Moon in question is named Ganymede, and Juno fled on June 7th. “At the time of Junos next to Ganymede during the missions 34th trip around Jupiter the spacecraft was within 645 miles (1,038 kilometers) of the moons surface,” says the NASA, “and traveled with a relative velocity of 41,600 mph (67,000 kph). Juno uses an instrument called Waves to measure radiation and plasma waves in Jupiter’s magnetosphere. Thus, NASA can better understand the interactions between magnetic fields, atmosphere and magnetospheres of the planet. This is how NASA used the flight data from a flyby. “This soundtrack is simply wild enough to make you feel like you were riding along as Juno sails past Ganymede for the first time since two decades,” said Scott Bolton, an investigation officer. As always, the noise is repercussion of the abrupt change around the middle of the recording, where the frequency is not the same as the way the magnetosphere moves into a different region. NASA says the “detailed analysis and model of the Waves data are ongoing.”