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this post was submitted on 01 Jun 2025
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Hmm. What's hard about that?
Drill and blast seems like it should work as normal, or just a bucket if it's the rubble heap kind. Getting noble metals like gold out of a solution is pretty easy with electrowinning.
Zero G?
What about those things require any g?
Asteroid miners are going to have more in common with spiders than anything else; find a tasty roid, wrap it up in cling wrap and set off bombs inside of it until it's a bag of gravel, then get the whole mess spinning and just let go of the stuff you don't want to keep. Hell when you're done you can re-harvest the angular momentum to propel you over to the next roid and start the process over again.
So easy, why hasn't anyone done it already????
Easy? Who said easy? I didn't say easy, I just explained a way it could be accomplished while conserving as much energy as possible.
I mean, most space travel ideas haven't been done, even ones that are many decades old. Shit's expensive and risky, both as an investment and an activity.
For the same reason most other things involving space haven't been done yet. We as a species suck at prioritising stuff and allocating resources
Why would that be a problem? The drilling platform would have to be tethered to the rock, but that's doable and I'm pretty sure they drill all the time on the ISS. Actually, didn't we drill into a comet or asteroid for samples sometime recently? The explosives would require no modification at all.
That would be the start of a solution.
Barbed harpoons were the approach with the comet. Putting a band around the whole thing could also work for a small body. If you're going for gold, the asteroid is also going to be paramagnetic if I'm not mistaken, so you can just electromagnet on.
It's slightly more problematic than on Earth, but I'm basically going to need some citations if I'm ever going to believe it's sticking to the chosen landing site that's the hardest part. A lot of proposals sidestep on-site processing, even, and rely on delivering a whole small body to Earth.
Maybe not to Earth (unless you wanna crash economies), but a LaGrange point would be suitable – as well as a place for something spinning so the hairless monkeys could have a semblance of gravity.
If you have human miners, anyway.
Creating a debris field in orbit? You want this thing fully enclosed before you start messing with it in ways that cause it to break up.
I suppose in a very low orbit you could consider messy options if it will all burn up in a few months. But doesn't seem ideal.