In his essay “Escaping Earth: Human Spaceflight as Religion” published in the journal Astropolitics, historian Roger Launius argues that enthusiasm for space can be viewed as a religion. He focuses mainly on comparisons with the outer trappings of religion, many of which are apt, but in one place he reaches the heart of the issue. “Like those espousing the immortality of the human soul among the world’s great religions… statements of humanity’s salvation through spaceflight are fundamentally statements of faith predicated on no knowledge whatsoever.”

I think Launius may be somewhat too pessimistic in his assertion that we have no knowledge whatsoever about our ability to develop technology that will
enablehumans live in the hostile environment of space, but that is beside the point. It’s true that we have no assurance that the colonization of space will ensure the long-term survival of humankind. “Absent the discovery of an Earthlike habitable exoplanet to which humanity might migrate,” Launius continues, “this salvation ideology seems problematic, a statement of faith rather than knowledge or reason.” And the accessibility of such an exoplanet is questionable, since by current knowledge it will not be possible to cross interstellar space rapidly enough to achieve much migration.

It is indeed faith that underlies the conviction that traveling beyond our home world will prevent the extinction of the human race. But Launius’ presentation of this fact seems to imply that it lessens the significance of such a conviction, as if beliefs supported by mere faith were not to be taken seriously. That is far from the case, as the history of human civilization clearly shows. Most major advances have been made by people who had faith in what they envisioned before they were able to produce evidence; that was what made them keep working toward it. Having faith in the future, whether a personal future or that of one’s successors, has always been what inspires human action.

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