*STRONG SOLAR FLARE: * The magnetic field of sunspot AR1719 erupted on April 11th at 0716 UT, producing an M6-class <http://spaceweather.com/glossary/flareclasses.html?PHPSESSID=vecujk5e8qlpadde8ksqkjd161> solar flare. NASA's Solar Dynamics Observatory recorded the explosion's extreme ultraviolet flash: