Martians

This episode investigates the possibility of life on the planet Mars. Does it exist and/or did it ever exist on the Red Planet? The show not only discusses the possibility of intelligent life on Mars but on that of plants and other forms of life. The changes that have taken place to the planet over the eons and the possibility that the same fate could await Earth. Footage from various observatories of the planet are shown and scientists discuss the past and future exploration of our neighbor in space.