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 …

Oct 12, 2024 · The anticipated coronal mass ejection (CME) arrived at Earth at 11:15am EDT at nearly 1.5 million miles per hour. The CME strength and structure are being closely scrutinized for potential geomagnetic storm intensity, but, G3 levels are now expected due to the magnitude and potential of the CME, therefore G3 or greater warning has been issued.

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 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 …

Jan 23, 2025 · 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 ...

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.

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.

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.

Coronal Mass Ejections News & Articles See All News. Article. 3 Min Read. A New Space Instrument Captures Its First Solar Eruption. Article. 5 Min Read. MMS: Five Years, Four Spacecraft, Thousands of Inspired Students. Article. 3 Min Read. CME Week: How NASA Watches CMEs. Article.