“No I mean the imagery of deep space, black holes, remnants of the big bang...”
Oh, I see, just the publicly released filtered and ‘retouched’ ones then... well, that’s something prety to look at I suppose... meaningless however.
You work at JPL?
More composite imagery can be found on the MIT - Chandra website:
http://chandra.harvard.edu/photo/category/blackholes.html