Our Sun

Via NASA:

A mid-level flare, an M6.5, erupted from the sun on April 2, 2014, peaking at 10:05 a.m. EDT. This video from NASA’s Solar Dynamics Observatory shows the flare in a blend of two wavelengths of extreme ultraviolet light: 304 Angstroms and 171 Angstroms, colourised in yellow and red, respectively.