I once visited a web site which displayed/compared different kind of 'views' on the same galaxy:
- gamma radiation (only grey and black... not much to see here = boring)
- visible light (a little bit better but... still more or less boring)
- electro-magnetic combined with something else (awesome colors = WOW!!*)
*picture something like this Antennae Galaxies image:
NASA / Hubble: comparison images of galaxies?
Now I can't find that site anymore...
Who knows where to find something like that?