sun quake - as seen on The Universe via the History Channel. a solar flare basically after firing drops back down to the suns surface with such force as to cause an quake with walls 2 miles high. cool.

http://www.youtube.com/watch?v=-z-BWGIni3w

and the Real Perspective on the Solar System

http://www.youtube.com/watch?v=z6yHKE9dg0g

This solar flares are huge most of them can engulf the whole Earth.