Three-part coronal mass ejection

Three-part coronal mass ejection

. A coronal mass ejection (top bright loop) rises above a dark cavity, followed by a rising prominence (central bright oval). An occulting disk of a coronagraph has blocked the intense sunlight from the photosphere, revealing the surrounding faint corona, and the white circle denotes the edge of the photosphere.  This image was taken with the Large Angle Spectrometric COronagraph, abbreviated LASCO, on the SOlar and Heliospheric Observatory, or SOHO for short.  (Courtesy of the SOHO LASCO consortium and NASA.  SOHO is a project of international collaboration between ESA and NASA.)

Copyright 2010, Professor Kenneth R. Lang, Tufts University