The ocean is located very deep on Jupiter's satellite

In the future, if human robots want to find liquid water on Europa, a satellite of Jupiter, they will have to dig very deep.

Klara Kalousova, a scientist at the University of Nantes in France and Charles University in Czech, and colleagues recently completed a study of Europa, Livescience reported.

New research shows the ocean lies way
Europa surface at least 25km. (Photo: Livescience)

The team used mathematical models to calculate the properties of water and ice in a variety of conditions. They found that differences in viscosity and density, among other factors, could cause water near the surface of Europa to flow to the ice very quickly to create a giant ocean. So water cannot lie right on the surface of Europa.

"It is possible that an ocean of water exists on Europa, but it is quite deep below the surface - about 25 to 50 km. The water only appeared on Europa a few tens of thousands of years ago - equivalent to a blink of an eye compared to the calendar using 4.5 billion years of the solar system ", Kalousova said.

Many scientists believe that Europa, about 3,100 kilometers in diameter, contains an ocean of groundwater beneath its ice cover. Although the Europa surface is very cold, the material beneath the crust still produces heat thanks to Jupiter's gravitational pull.

The country used to create life on Earth. So Europa is the ideal goal for future attempts to find extraterrestrial life and solar system.

However, scientists have not yet figured out how difficult it is to launch a spaceship to Europa to search for an underground ocean, because they do not know what depth the ocean is at the surface. Some researchers guess water exists a few kilometers below the surface, but Kalousova claims the water is deeper than that.

Astronomers claim that Europa is not the only natural satellite that contains water in the solar system. Callisto and Ganymede, Jupiter's other satellites, and Saturn's Enceladus satellites may also contain water.