On Jan. 28, 2014, NASA's Interface Region Imaging Spectrograph, or IRIS, witnessed its strongest solar flare since it launched in the summer of 2013. Solar flares are bursts of X-rays and light that stream out into space, but scientists don't yet know the fine details of what sets them off.
Fuente : http://www.eurekalert.org/pub_releases/2014-02/nsf...
Fuente : http://www.eurekalert.org/pub_releases/2014-02/nsf...