The next frontier in space exploration is Mars, the red planet- and human habitation of Mars isn't much farther off. In October 2015, NASA declared Mars "an achievable goal". Now the National Geographic Channel goes fast-forward as humans land on and learn to live on Mars. Following on the visionary Kaufman's Mars Up Close, this companion to the Nat Geo series shows the science behind the mission and challenges awaiting those brave individuals. Contributions from key scientists, engineers, advocates and astronauts punctuates a compelling narrative on the most amazing next step in human history, likely to occur in our lifetimes.