The Europa is the moon of the Jupiter, to that the scientists directed their attention. Recently, it was confirmed that the ice crust of the satellite's surface was in motion, and that the major shift that occurred effectively destroyed its surface. High-resolution images produced topographic data indicating that the Europa's ice surface has massive cracks that are as deep as two hundred meters.
These cracks are found throughout all known landscapes and are associated with deformation following a process called polar wandering. It is one of the latest developments in the Europe.
They suggest that the mobile ice shell of the Jupiter's moon may have gradually thickened. One of the latest geological events led to the fact that the consequences of geological events that had not happened before were recorded on the Europe's surface.
The cracks show that the satellite's ice sheet has turned 70 degrees in places over the past several million years. It means that the geological history of the surface of the moon of the Jupiter needs to be revised.
Now the poles of the satellite are not located where they were before. The experts from the Space Research Association conducted a research and found that large-scale circular models of the Europe on a global scale were formed during a significant reorientation of its icy outer shell relative to its rotation. In fact, the axis of the Europe entered the process of polar wandering.
Such phenomenon is possible only in one case: if the ice shell freely exists separately from the solid core of the space object. The scientists believe that cracks associated with polar wandering on the Europe cross all landscapes. It means that true polar wandering is very young, and that the shell of ice and all objects formed on it have moved more than 70 degrees latitude from their original formation.