土星壁纸
by NASA/JPL-Caltech/Space Science Institute/Lunar and Planetary Institute
NASA Image Library · 公有领域（Public Domain）
关于这张图
This set of global, color mosaics of Saturn moon Dione taken by NASA Cassini spacecraft during its first ten years exploring the Saturn system; obvious feature on the maps is the difference in color and brightness between the two hemispheres.
