Internal structure of Mars, animation

Videonummer 12661426
Internal structure of Mars, animation. 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.
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Credit: Science Photo Library / Lunau, Claus
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Länge: 12 Sekunden
Seitenverhältnis: 16:9
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