WHY NOW?
In a prolific flurry of activity between 1969 and 1972, NASA landed 12 astronauts on the Moon. Starting with Neil Armstrong's famous first steps, they explored the lunar surface, left experiments there for us to improve our knowledge and returned Moon rocks so we could learn about our neighbour's history and origins.
Yet achieving those historic feats did not come cheap. The total cost of the Apollo programme in today's money was $280bn, according to a recent estimate by The Planetary Society. That's more than the GDP of 78 per cent of the world's nations.
Adjusting the value to take into account changes to the USA's own GDP since the 1970s puts that figure at more like $641bn.
Ultimately, that money came from taxpayers, who were increasingly reluctant to sanction spending on something that had already been done six times. Schools and hospitals tend to be closer to people's hearts.
Fast-forward to today and we're in the midst of another space race, with a sizeable armada of spacecraft heading to the Moon in the years ahead. So what's changed?
First, taxpayers are no longer footing the entire bill. The last decade has seen an explosion in the number of private space companies, led by famous names like Elon Musk's SpaceX. By developing reusable rockets, they've driven down the cost of getting to space considerably. NASA already uses SpaceX technology to deliver astronauts and supplies to the International Space Station and they've inked deals to collaborate on sending landers to the Moon, too.
Denne historien er fra April 2022-utgaven av BBC Science Focus.
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Denne historien er fra April 2022-utgaven av BBC Science Focus.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
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