ESA has published photos of Mars showing hemispheric dichotomy
The territory shown is interesting in that it represents a clear boundary between the two different hemispheres of Mars. Most of the Northern Hemisphere and about a third of the entire surface of the planet lies three to six kilometers lower than the remaining two thirds. This phenomenon is called the dichotomy of the hemispheres.
The northern low-lying areas have a small number of craters, they are flat and smooth, which indirectly indicates a long-term renewal of the surface. At the same time, the southern hemisphere was dug with craters, which could appear as a result of the last meteorite bombardment and volcanic activity. The area of Nili Fossae is located just on the border of these two areas and represents a cluster of grabens – sections of the crust lowered relative to the surrounding plane along steep tectonic faults.
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Nili Fossae on the border of two areas (north – upper side) / © ESA |
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| Displaying elevation differences on the border (north – right side) / © ESA |
On November 26, the InSight spacecraft, which is designed to study the internal features of the Red Planet, will land on Mars. NASA has prepared five communication channels to track the descent module. You can read about how the landing is planned.
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