1)   Beautiful Earth - Desktop Wallpaper Background - Screen Saver 4.2.2
Beautiful Earth - Desktop Wallpaper Background and Screen Saver --- Beautiful Earth shows how the Earth looks like from the space at this very moment.

 2)   KyoSoft Earth Screensaver 1.1.26
Earth Screensaver includes a stunningly rendered image of the earth together with smooth animation of the different phases and is fully configurable, including colour (ability to apply a colour filter), size, and starting phase.