Check out these edit image images:
M82 and its Hydrogen Wallpaper
Image by sjrankin
NOAO image of the spiral galaxy M82, showing off its hydrogen filaments.
Saturn and Titan Wallpaper
Image by sjrankin
Hubble Space Telescope image of Saturn, her rings, some very bright moons, and a malevolently-glowing, orange Titan. Note that Saturn isn't a perfect sphere but is flatten at the poles. That's because Saturn spins so fast about its axis that it warps herself.
