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"Europa, which holds twice as much water as all of Earth's oceans combined, is primed to support life." (NASA)

The satellite of Jupiter called "Europe" is one of the places in the solar system where most likely we can establish a permanent human colony.
Credits: Image by NASA http://www.nasa.gov/
The moon Europa has plenty of water rich in oxygen, which allows not only the lives of simple organisms, but also more complex forms of life.

The main ingredients for life are water, heat and organic compounds derived from comets and meteorites. Europe meets the three conditions. Under a thin crust of 5 km of ice, Europa has oceans of about 50 km deep.

It is interesting to note that the moon Europa has almost no impact of meteorites on the surface (the classic craters of the terrestrial moon). This is because the ice is very thin in Europe and it continually regenerates. The channels visible on the surface of Europa are the result of a process in which successively the ice shell is broken, liquid water flows and freezes again.

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