Hubble telescope's recent image of M83 is really quite amazing. I found the full resolution file in put it into the Gigapan viewer. Wow.
http://www.gigapan.com/gigapans/d186...2ad1d9afadd2e4
Pan and zoom, and be sure to go to full screen, number of emission regions blow me away.
Enjoy the Ride!
Oh, and then afterward, watch
http://www.youtube.com/watch?v=p86BPM1GV8M