Useful Links - Pictures

LROC 681 Gigapixel Lunar Northen Polar Mosaic: http://lroc.sese.asu.edu/gigapan/

NASA APOD (A picture of the day): http://apod.nasa.gov/apod/astropix.html

ESO - Top 100 Images: http://www.eso.org/public/images/archive/top100/

Hubble - Top 100 Images: http://www.spacetelescope.org/images/archive/top100/