This CME image from Oct. 7, 2012, captured by two instruments on STEREO, shows the eruption from its base out into space.
This CME image from Oct. 7, 2012, captured by two instruments on NASA’s Solar Terrestrial Relations Observatory, or STEREO, shows the eruption from its base out into space. The base of the CME near the sun is seen in extreme ultraviolet light emitted directly from the solar material; the growing loop is seen in visible light. Credit: NASA/STEREO