The South African National Space Agency (Sansa) announced on Tuesday that moderate disturbances had been caused in the Earth’s magnetic field, creating moderate space communications disruptions, by a coronal mass ejection (CME) from the Sun. The CME occurred on October 9. Most CMEs miss the Earth, but when they do hit our planet, they generate magnetic storms when they interact with the Earth’s magnetic field. These storms are graded on a scale developed by the US National Oceanic and Atmospheric Administration, from G1 (a minor storm) to G5 (an extreme storm).
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