Swarm reveals magnetic waves across Earth’s outer core


Using information from ESA’s Swarm satellite mission, scientists have discovered a completely new type of magnetic wave that sweeps across the outermost part of Earth’s outer core every seven years. This fascinating finding opens a new window into a world we can never see. This mysterious wave oscillates every seven years and propagates westward at up to 1500 kilometres a year.

Read full story: https://www.esa.int/Applications/Observing_the_Earth/FutureEO/Swarm/Swarm_unveils_magnetic_waves_deep_down

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  1. Si je comprends bien, la langue officielle de l'Europe est l'anglais? Non, il y a 24 langues officielles reconnues dans l'Union européenne. L'anglais est l'une des langues de deux pays seulement (Irlande et Malte) alors que le français l'est de trois (France, Belgique, Luxembourg) et l'allemand de quatre (Allemagne, Autriche, Belgique, Luxembourg)… Pourquoi les vidéos de l'Agence spatiale européenne ne sont-elles pas traduites? Merci.

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