Browsing: Coronal Mass Ejections

Coronal Mass Ejections (CMEs) are large expulsions of plasma and magnetic field from the Sun’s corona, the outermost part of the solar atmosphere. These solar phenomena can eject billions of tons of coronal material and carry an embedded magnetic field stronger than the background solar wind interplanetary magnetic field. CMEs are often associated with solar flares and sunspot activity, but they can also occur independently. When directed towards Earth, CMEs can interact with the Earth’s magnetic field, potentially leading to geomagnetic storms. Such storms can disrupt satellite operations, telecommunications, and power grids on Earth, as well as produce spectacular auroras. Monitoring and understanding CMEs are critical for predicting solar-terrestrial interactions and protecting technology and infrastructure in space and on Earth.