SOHO
1st May 2015, 20:10
An elongated solar filament that extended almost half the Sun's visible hemisphere erupted into space (Apr. 28-29, 2015) in a large burst of bright plasma.
More... (http://soho.nascom.nasa.gov/pickoftheweek/old/01may2015/)
More... (http://soho.nascom.nasa.gov/pickoftheweek/old/01may2015/)