What's happening to our Sun? Another Coronal Mass Ejection [ http://www.windows.ucar.edu/tour/link=/sun/cmes.html&edu=high ] (CME)! The Sun-orbiting SOHO spacecraft [ http://sohowww.nascom.nasa.gov/about/about.html ] has imaged many erupting filaments lifting off [ http://antwrp.gsfc.nasa.gov/apod/ap990923.html ] the active solar surface and blasting enormous bubbles of magnetic plasma [ http://antwrp.gsfc.nasa.gov/apod/ap980515.html ] into space. Direct light from the sun is blocked in the inner part of the above image [ http://sohowww.nascom.nasa.gov/gallery/images/c2eitcomp.html ], taken in 2002, and replaced by a simultaneous image of the Sun in ultraviolet light [ http://imagers.gsfc.nasa.gov/ems/uv.html ]. The field of view extends over two million kilometers from the solar surface. While hints of these explosive events [ http://www-istp.gsfc.nasa.gov/istp/outreach/cmeposter/hurricane.html ], called coronal mass ejections [ http://science.nasa.gov/ssl/pad/solar/cmes.htm ] or CMEs, were discovered by spacecraft in the early 70s, this dramatic image [ http://sohowww.nascom.nasa.gov/gallery/images/c2eitcomp.html ] is part of a detailed record of this CME's development from the presently operating SOHO [ http://en.wikipedia.org/wiki/Solar_and_Heliospheric_Observatory ] spacecraft. Near the minimum of the solar activity cycle [ http://en.wikipedia.org/wiki/Sun_spot_cycle ] CMEs occur about once a week, but near solar maximum rates of two or more per day are typical [ http://antwrp.gsfc.nasa.gov/apod/ap990316.html ]. Strong CMEs may profoundly influence space weather [ http://www.spaceweather.com/ ]. Those directed toward our planet can have serious effects [ http://www.sec.noaa.gov/ ].