Mars Calling: Manifest Destiny or Grand Illusion?

Few subjects have sparked the imagination and inspired more outlandish speculation than the planet Mars. Now, as our understanding of the red planet continues to evolve, we are able to contrast the reality of life on Mars against our imagined flights of fantasy. The differences and similarities are striking. What is the probability that humans can one day occupy this...

from Top Documentary Films https://ift.tt/2vegcUG