Internal structure of Mars,cutaway computer illustration. Mars is a rocky planet with a partially molten core of iron and iron sulphides (central sphere). Overlying the core is a thick mantle (orange),which underlies the crust (upper layer). The crust of Mars is around 100 kilometres thick,compared to the 10 to 70 kilometre-thick crust of Earth. The lack of a completely molten region around the core means that Mars does not generate a uniform strong magnetic field,which would have protected the planet's atmosphere from the solar wind. It is thought the atmosphere on Mars was stripped away after the core cooled | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Lunau, Claus |
Bildgröße: | 5906 px × 5906 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |