Why Coronal mass ejection still gets people talking.

A coronal mass ejection (CME) is a significant ejection of plasma mass from the Sun's corona into the heliosphere.

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.