It is noteworthy that Wikipedia gives as cost for the Artemis program a total sum of US$93+ billion (2012–2025).
It is a bit difficult to compare, because NASA shuffles around cost, and the plan is that Artemis will do way more (moon base) than Apollo. But Apollo seems to have been not only a technological marvel, but exceptionally well managed?
Regarding Manhattan project it has this mythical quality (the name alone is cool), but the Russians had the a-bomb only 4 years later and smaller countries (South Africa) are able to achieve it too.
It is a bit difficult to compare, because NASA shuffles around cost, and the plan is that Artemis will do way more (moon base) than Apollo. But Apollo seems to have been not only a technological marvel, but exceptionally well managed?
Regarding Manhattan project it has this mythical quality (the name alone is cool), but the Russians had the a-bomb only 4 years later and smaller countries (South Africa) are able to achieve it too.