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International astronomers claim to have enough evidence to determine the surface of the moon Ganaymede, Jupiter's largest satellite, with a giant sea of ​​saltwater.

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Scientists found saltwater on the moon Ganaymede

According to the US Aeronautics Agency (NASA), experts used the Hubble Space Telescope to detect traces of surface water under the lunar surface of Ganaymede. This is the only moon in the solar system that has its own magnetic field.

Thanks to magnetic fields, on the surface Ganaymede appears purple aurora in the north and the south pole of this moon. However, the magnetic field of the moon Ganaymede is impacted by Jupiter's magnetic field, causing the extreme on Ganaymede to be teleported.

Aurora on the lunar surface of Ganaymede as described by NASA - (Photo: NASA)

Through studying the motion of aurora on Ganaymede , scientists determined that under the surface of this moon there must be a giant saltwater ocean. This ocean reduces the effect of the Jupiter magnetic field on Ganaymede.

Professor Joachim Saur of Cologne University, who led the study of the moon Ganaymede, said the Ganaymede ocean is 10 times deeper than the oceans on earth.

In fact, scientists have suspected Moon Ganaymede had an ocean many years ago. But this is the first time they have gathered a confirmation of this suspicion.

' An ocean deep beneath the icy surface of Ganaymede opens up the possibility of life outside the earth' - NASA expert confirms.

Expert Jim Green, NASA's planetary science director, described the finding, suggesting that the solar system is 'wet place'. Prior to Ganaymede, scientists also identified a series of moons with surface oceans such as Europa, Caliso (the satellite of Jupiter), Enceladus, Titan and Mimas (Saturn's satellites), Triton (satellite of Hai Vuong Tinh).

As expected, Europe will launch Juice spacecraft to orbit of the moon Ganaymede to study in the 2030s.