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In Solar System’s Symphony, Earth’s Magnetic Field Drops the Beat

12 Feb 2019, 13:56 UTC
In Solar System’s Symphony, Earth’s Magnetic Field Drops the Beat E. Masongsong/UCLA, M. Archer/QMUL, H. Hietala/UTU

Space isn’t silent. In fact, an entire orchestra of instruments fills our near-Earth environment with eerie sounds. Scientists have long known about space phenomena involving electromagnetic waves travelling around Earth that resonate like string instruments and whistle like wind instruments. Now, new research published in Nature Communications has added a percussive member to the cosmic ensemble: a giant drum, triggered by plasma jets striking the boundary of the protective magnetic bubble surrounding our planet.

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