Exploration and pioneering have inspired and shaped civilizations since the dawn of history. Such endeavours are distinguishing characteristics of an advancing civilization. As people explore, they discover, innovate, prosper, lead— and become great. In the Stories of Tomorrow project and in this course, we have selected as the main topic a major challenge for the humankind: The journey to Mars. Space missions, both robotic and human, expand the knowledge of our planet, our solar system, and the universe, leading to the expansion of humankind itself from the Earth to the Moon, Mars, and beyond.