A coronal mass ejection (CME) is a significant ejection of plasma mass from the Sun's corona into the heliosphere. CMEs are often associated with solar flares and other forms of solar activity, but a broadly accepted theoretical understanding of these relationships has not been established.

Coronal Mass Ejections (CMEs) are large expulsions of plasma and magnetic field from the Sun’s corona. They can eject billions of tons of coronal material and carry an embedded magnetic field (frozen in flux) that is stronger than the background solar wind interplanetary magnetic field …

Coronal Mass Ejections disrupt the flow of the solar wind and produce disturbances that strike the Earth with sometimes catastrophic results. The Large Angle and Spectrometric Coronagraph (LASCO) on the Solar and Heliospheric Observatory (SOHO) has observed a …

Jun 24, 2022 · Coronal mass ejections (CMEs) are colossal expulsions of plasma and magnetic field from the sun's corona. Explore CMEs in more detail here in our guide.

Mar 6, 2015 · The outer solar atmosphere, the corona, is structured by strong magnetic fields. Where these fields are closed, often above sunspot groups, the confined solar atmosphere can suddenly and violently release bubbles of gas and magnetic fields called coronal mass ejections.

6 days ago · The outburst, known as a coronal mass ejection (CME), erupted from the sun on Jan. 21 and is forecast to strike Earth's magnetic field late Friday night (Jan. 24) or early Saturday morning (Jan ...

Jan 3, 2025 · Coronal mass ejection (CME), large eruption of magnetized plasma from the Sun’s outer atmosphere, or corona, that propagates outward into interplanetary space. The CME is one of the main transient features of the Sun.

Coronal Mass Ejections, or CMEs, are explosive bursts of solar plasma and magnetic field that fly away from the Sun at thousands of kilometers an hour. CMEs are frequently (but not always) associated with solar flares.

Sep 25, 2017 · Coronal mass ejections (CMEs) are huge explosions of magnetic field and plasma from the Sun's corona. When CMEs impact the Earth’s magnetosphere, they are responsible for geomagnetic storms and enhanced aurora.

– The ejection of a large-scale, organized coronal structure from the corona that escapes into the heliosphere • A typical CME has – Width of ~45°, mass of ~1015 gr, speed of ~500 km/s, and a fluxrope structure • Things to remember – The emission is optically thin, the structure along the line of sight is unknown