From Space to Earth - World - Screen Saver Description:

Protect your monitor with satellite-eye views of different parts of our Planet. See pictures of a sandstorm in the Sahara, the Caspian Sea, the Aral Lake, China, Tibet and more.
This 32-bit screen-saver engine rotates photos of different locations on earth as seen on clear days from the earth's orbit. Over a dozen visual effects can appear between images. Plus, each of the photos can be displayed as your desktop wallpaper. Customize the program to your liking with several appearance and behavior options, all accessed from a clean, tabbed window. This demo contains eight photos, each of which also may be used as wallpaper. You can also choose any of the images as your desktop wallpaper, and can choose how often to cycle the wallpaper (in hours, days or weeks, or never)