i saw this image in a doco and thought id chase it down on the net, it was the first id seen of the space telescopes doing false colour using optical, xray and infrared photography.
theres a lot more images on the site of other objects also
http://chandra.harvard.edu/photo/2007/sombrero/
if you havent seen many images from Chandra or Spitzer i'd take a good look around the site, incredible images and you see the objects a little differently
http://chandra.harvard.edu/photo/2007/ngc4258/