Posted by Muhammad523 3 hours ago
Which of the 180ish elements would possibly be found on a foreign body in enough scale that couldn't possibly be found, made, or replaced by cheaper means here on earth?
Space mining doesn't make sense! We can't even justify exploiting all known resources here on earth itself because they aren't profitable, how do you work those numbers when, instead of literal slave labor, you have to pay the energy cost of going up and then back down for every kilo of matter?
If it's often not worth it to mine literal gold here on earth because it can't be profitably extracted, the core limit on gold mines as an investment and business venture, why would it be profitable to, for example, mine that gold on Mars and try to bring it home?
That cancelled program became famous for leaving behind an already bought launcher that now will fly mass simulator
Flying to Mars and then flying back is incredibly complicated and much more expensive. Rather than sending an exploratory rover or a satellite, you have to basically send an entire launch vehicle when we've never launched anything into orbit from Mars before. And it has to operate essentially autonomously (for the launch).
Even missions to get samples from comets and asteroids are far less complicated because you're not dropping into a gravity well with just enough atmosphere to cover all your stuff in dust but not enough for atmospheric braking. Mars has the exact wrong amount of atmosphere.
Obviously samples returned from Mars would be better but it diminishes the value when we already have samples here. So the huge price tag and incredible engineering complexity becomes harder to justify.
[1]: https://www.nhm.ac.uk/discover/martian-meteorites-rare-visit...
We have Mars rocks at home.
> Obviously samples returned from Mars would be better
The Mars rocks at home.
I was holding my breath for Nancy Grace Roman Space Telescope which amazingly wasn't cancelled but they did cancel its successor, the Habitable Worlds Observatory Space Telescope which would be able to spot earth-sized exo-planets
even though Congress already funded it, because somehow the executive is allowed to illegally pocket veto Congress over and over again past two years
it's all Heritage Foundation and Russell Vought, he has no use for science and education