STEREO, NASA's satellite sent up to the heavens to examine the surface of the Sun, has captured the first ever images of a collision between a comet and a solar "hurricane". The force of the solar storm, a coronal mass ejection (CME), was so great that it tore the plasma tail from the comet.
More (including a piccie): http://www.theregister.co.uk/2007/10/02/solar_storm_comet/