Mars 3D Space Survey Screensaver... Discover the secrets of mysterious Mars planet, the fourth planet from the Sun in the Solar System. Does Mars have life? This is the major scientific question facing the world today. Blast off on a Mars adventure of your own right now. Launch this screensaver and transfer yourself to the Mars orbit. Watch spectacular views of the Red Planet along with its satellites, Phobos and Deimos. Try to find your own answer to the big question about Mars!