It’s not hard to get to the moon. It’s just expensive. When we landed on the moon in ~~1968~~ 1969, NASA’s budget was around 8% of all federal spending. By today’s standards that would be around $400B. We could easily get to the moon again if we spent that again. What’s hard is the private sector trying to do it on 1/1000 the budget.
Edit: fat fingered a digit. Ya’ll are over thinking this
Basically none of the relevant physics or technology changed much in those 50 years, so it’s just as hard now as it was then
The US didn’t maintain the capability, so it must be mostly reinvented from scratch to do it again – the plans either don’t exist or reference parts and materials that are no longer made, at least in those exact versions; people left, aged or passed away
Money, almost every reason things are done, not done, or done a certain way boils down to money.
In this case, they don’t have the funding that they had 50 years ago. It would be trivial (comparatively) to go to the moon if some agency had unlimited budget. But the question is why. Why do we need to go there? What would we gain that we don’t already know? How many billions of dollars are we willing to spend to ‘just do it again’?
While some technologies have developed exponentially in the last 50 years, like computers, other technologies like rockets have not had much improvement.
Not all technological development is exponential like computers.
One key difference is that computers are small and mass produced. So each small improvement to cost or power is improving millions of computers. Which leads to more money in finding improvements.
Rockets are made in much smaller quantities and have a high risk of failing destroying valuable satellites or killing their passengers. So any improvement, also has the risk of causing catastrophic failure. A single failure could cost over a hundred million dollars. So rocket manufacturers haven’t taken many risks to improve the rockets or even save on costs.
Latest Answers