Mars On Earth: Fragile Life In the Arctic

Mars, 2012: A lean landing craft touches down on Mars, at a site judged to have the best chances for finding some trace of water. Guided by scientists on Earth, the robot works its way into a crevasse that looks like it might once have hosted an active hot spring. The landing craft begins to sample dirt and scratch rocks to collect anything that might hold signs of life. It dumps that material into a chamber and then begins to search the material for molecular DNA