Why are billionaires obsessed with going to space?

B ranson, Bezos, Musk: why are these billionaires, with all their worldly riches, fixated on space travel? The Tesla founder, Elon Musk, argues that in becoming “multiplanetary”, humans might gain “failsafe” protection from the risks of extinction or planetary collapse, while Amazon’s Jeff Bezos speaks of “saving the Earth”. If civilisation perishes on one planet, these billionaires seem to think we have a backup elsewhere.

Bezos, Musk and Richard Branson seem animated by a lofty goal: securing the future of humanity by going into space. Many have dismissed this as billionaire bravado that pays little attention to real, down-to-earth problems such as environmental collapse. Worse, others say it echoes rapacious, historic land grabs. But “going to space” and “saving the human race” are ideas that have long captivated people on Earth. Their shared history shows why we remain captivated by this prospect, regardless of who, right now, are its cheerleaders.

For centuries, the west worked on the assumption that the universe was full of life and intelligence. The alternative – that humans were essentially alone, an oasis of intelligence surrounded by lifeless, barren void – was too difficult to accept. Many presumed other planets were populated with creatures essentially identical to us. Because of this, no one acknowledged that the end of the Earth would simultaneously spell the end of human life. And there was no reason to imagine humanity migrating to other planets to bring life to a non-living universe. Writers imagined making trips to visit other celestial bodies and their humanoid occupants, but not permanently settling these spaces.

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