See beautiful and stunning images of every shuttle in NASA's Space Shuttle fleet. See shuttles lift off, carry out their mission in orbit, land, and return home aboard the 747 shuttle carrier. Includes 44 images. These images are used with permission of NASA which does not in any way endorse this screensaver.System requirements: Windows 95/98/NT,2000. Resolution of 800x600 or greater is strongly recommended. 16-bit color or greater is also strongly recommended.The screensaver comes with a Screen Saver Control utility which makes it easy to select, configure, and launch any installed screensaver with a click to its System Tray icon.