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Holes in sun’s atmosphere can help predict space weather on Earth

Coronal holes are cooler, darker regions in the Sun’s upper atmosphere, the corona, from which high-velocity solar wind gushes into space. A new study has now found that the magnetic properties of these holes can be used to predict the severity of geomagnetic storms hitting Earth.

Geomagnetic storms occur when they erupt solar windStreams of magnetized particles from the corona interact with The Earth’s magnetic field and penetrate the atmosphere of the planet. Some geomagnetic storms are the result of coronal mass ejections (CMEs), powerful eruptions of plasma from the corona that usually originate sunspots.

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