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So my grandchildren will be more than likely be belters. Got it.
ROCK AND STONE
For Rock and Stoooone!
Huh. You don't say? I could have told you that and I'm not a genius. Who knew off world mining would be less environmentally impactful to the earth. One issue though would be cost.
I think the point is that emission from space flight to and from the asteroid (with a sufficently economic size of payload and fuel) is starting to even out. If you take that into account it’s not so obviously less harmful to the environment. But I’m almost certain that it will be way more expensive for a long time.
Or figure out a space elevator which in theory would work but if it failed, it would be very bad.
Realistically, asteroid mining is centuries away, if it ever happens at all. Deep space is an incredibly hostile environment, which makes it non-conducive for the kind of tinkering and experimentation that usually leads to human technological progress.
The human body is incredibly picky. Everything has to be just right or the human simply dies of anything and everything. Things like gravity, radiation, temperature, pressure and so many other variables matter a lot.
Space exploration and asteroid mining are the kinds of jobs better left for robots.
Feels like we’d need a very clean way to launch and land enough robots to-from space to iterate for it to have much less environmental impact.
Like a space elevator basically.
You don’t need to land the vehicle with the cargo.
Just slow the cargo down in orbit, maybe slap some heat shielding made from space mined resources on it, and then let the cargo drop. The deorbit stage can stay in earth orbit and wait for the next piece of cargo to come in.
Realistically, once we start seriously mining in space, the only thing that needs to be launched from earth would be human consumables, like minerals for growing crops, preserved foods, and medications that require resources only found on earth.
Moving manufacturing up to space after the mining would seriously cut down on the cost of operations. There’s little reason to drop resources on earth, when you could sell things like refined metals, water, and fuel to other space based companies at a premium, just so they don’t need to launch it themselves.
How often do we mine asteroids on earth?
All the time, but they hit long ago.
I think the implication was that some genius decided to suggest the idea of dropping the asteroids on the surface before mining them the old-fashioned way. Because there's no way that could possibly go wrong. It's not like anybody ever makes math errors or anything.
Wait, that speed wasn’t given in feets per minute and the mass wasn’t in pounds? I guess we’ll find out if 1800 m/s is too fast for a smooth landing.
And all the mining waste are dumped in space, where people thought out of human's reach so it's safe to leave it there, until proven otherwise. I may be pessimistic, but if such technological advance made it will likely expand region of human activity and thus history repeats.
Space is big, really big. On average there are thousands of kilometers between asteroids. Between the larger ones I'm seeing estimates if 100,000 kilometers between them. Earth is 12756 kilometers in diameter.
If humanity gets to a point where it can support a population as large as you are suggesting, then we can probably deal with space junk in the asteroid belt. Also we can just go "over" it.
This is the best summary I could come up with:
For instance, a study by Ian Lange of the Colorado School of Mines considers the potential—and challenges—for a fledgling industry that might reach a significant scale in the next several decades, driven by the demand for critical metals used in electronics, solar and wind power, and electric car components, particularly batteries.
While other companies are exploring the controversial idea of scooping cobalt, nickel, and platinum from the seafloor, some asteroids could harbor the same minerals in abundance—and have no wildlife that could be harmed during their extraction.
Lange’s study, coauthored with a researcher at the International Monetary Fund, models the growth of space mining relative to Earth mining, depending on trends in the clean energy transition, mineral prices, space launch prices, and how much capital investment and R&D grow.
By their assessment, metallic asteroids contain more than a thousand times as much nickel as the Earth’s crust, in terms of grams per metric ton.
Electric vehicles and their batteries need about six times the minerals conventional cars do, and they require both nickel and cobalt in significant quantities.
The Democratic Republic of Congo accounts for 70 percent of cobalt production, for example, while nickel primarily comes from Indonesia and the Philippines, and Russia and South Africa have most of the global supply of platinum-group metals.
The original article contains 701 words, the summary contains 215 words. Saved 69%. I'm a bot and I'm open source!
No shit sherlock.
Dead space vibes.
They towed the boat out of the environment.
Into a different environment? Did the front stay on?
What could possibly go wrong adding a ton of mass to earth
Not too much. It's just a single ton. Unless it's a ton of antimatter
I've been curious about this subject (increasing or decreasing the planet's mass) & wanting a real fact based explanation. The fact that man has built structures that had a measureable impact to Earth's tilt indicate that there is a calcuable figure that represents the effect that the cumulative mass being removed from close to Earth's core/surface & shifted into orbit or pushed out of the planet's gravitational field has/will have. I've got no idea ehat the impact would be, but at some point reducing the mass of a spinning object has to result in changes. How many non-returning ships sent off-planet does it take to reduce the gravitational field of Earth? Does it impact Earth's orbit around the Sun? And inversely, how much off-planet mined materials brought here before ...idk - Earth's gravity is increased? Assuming the # is "real", shouldn't we be determining how much can be mined on the moon & brought here? Better now than waiting until the next environmental crisis headlines read "Moon weight loss has lead to extreme ellipse-ing of it's orbit: expect even more monumental tidal extremes!". Again, I don't know what the real impact would be, I made this last bit up for dramatic effect/illustrate my question.
This was exactly my point. It's silly to assume we can just bring endless resources to our planet and not eventually fuck up our gravity or rotation.
There isn't likely to be much material shipped down the gravity well. It's too expensive unless you can also build a space elevator, and maybe not even then. Maybe for some very high value metals, like platinum. Otherwise, the value of the metal has to be greater than the value of the heat shield that you're going to ablate away on entry.
Asteroid mining is very useful for building things in space. Not so much on Earth.
this post was submitted on 22 Oct 2023
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