NASA's superb beautiful wallpaper

Speaking of NASA is a universe, there are various wallpapers made based on data obtained by such observations of the universe. For normal people who are already bored with normal wallpaper. You can peek at the mystery of the universe.
JPL.NASA.GOV: Stars and Galaxies Wallpapers
http://www.jpl.nasa.gov/wallpaper/stargal.cfm

Since it is complete from 800 × 600 to 1600 × 1200, it is also recommended for people with high resolution desktops that can not use common wallpapers.