At the time when Europe, the United States and the majority of the space powers are preparing the nextstages of the exploration of space, it becomes increasingly obvious that to the scientific and technical, economicand political preparations must be joined a philosophical and ethical reflexion. On which human motivationsthese exploration programs do or can rest? Why investing in an enterprise, certainly so human, but also soexpensive and risky? If the decision to explore, to leave its usual borders can only be the fact of people and ofhuman society conscious of their identity, it can to also give the opportunity to offer them a value, a sometimeslost or forgotten sense to them. More than ever, the future of human has a cosmic savour.
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