Solar Eruption (image) American Physical Society Caption An erupting "prominence" is observed using photons at wavelength 304 Å. A prominence typically outlines the trailing part of a larger CME flux rope structure. The striated plasma filaments are organized by magnetic fields into strands of a "rope." In this snapshot, the apex is at about 300,000 km above the solar surface, a distance equal to about 24 Earths placed side by side. Image obtained at 07:19 UT, Sept. 14, 1999, by the EIT instrument on the SOHO spacecraft. Both SOHO and STEREO are cooperative missions between the European Space Agency (ESA) and NASA. Credit European Space Agency (ESA) and NASA Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.