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Atmosphères et magnetosphères des planètes géantes

Les planètes ne sont pas que des grosses sphères de roche, de glace ou de gaz. Leur zone d'influence se prolonge bien au-delà de leur haute atmosphère, à travers leur attraction gravifique et leur champ magnétique.

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Earth Magnetosphere and Upper atmosphere

When an atom or a molecule collides with another particle, it can gain internal energy which will be lost by the emission of light.

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Atmospheres of Venus and Mars

The terrestrial planets possess several common characteristics (e.g. their mass, diameter, density or their distance to the sun), but they also differ in many respects.

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Earth atmosphere and carbon cycle

Biogeochemical cycles play an important role in the evolution of Earth's climate. This especially holds for the carbon cycle.

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