All eyes are on Mars. NASA's new lander, InSight, has touched down on the red planet, and in two years Mars 2020 rover will depart Cape Canaveral bound for the red planet. The ultimate challenge is to enable crewed missions to Mars by the 2030s - the next giant leap for mankind. In Mars: A Journey of Discovery, NASA historian and award-winning space writer Rod Pyle takes us through previously uncharted territory to experience the unravelling of the mysteries of Mars first-han