2014年10月17日 Science 
 
                      COVER Ultraviolet view of a coronal mass ejection on the Sun on 9 May 2014. Images from the Interface Region Imaging Spectrograph                        (IRIS) (inset) and from the Solar Dynamics Observatory's Atmospheric Imaging Assembly (background) show the violent eruption                        of hot plaa into space. NASA launched IRIS in June 2013 to study the complex interface between the Sun's surface and outer                        atmosphere. See pages 
305 and 
315 and 
sciencemag.org/special/iris                        Images: IRIS and SDO/AIA, Lockheed Martin Solar & Astrophysics Laboratory, NASA/Goddard Space Flight Center 
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