This is an incredibly small minded perspective. Difficult challenges require new technologies, new processes and new ways of thinking. More specifically, technologies developed through the race to land on the moon (and space flight generally) are integral to almost every aspect of 'your' life and define what most of us consider human flourishing.
These companies are just trying to shoot rockets further then each other. They're not science pr research companies. We're not learning more about space and the universe thanks to the them.
But these companies (well, at least SpaceX) have their focus on making orbit cheap and sustainable, and pushing towards Mars colonization and asteroid mining. Those are engineering and logistics problems more than science problems, but I think they're very important.
Those are all ways to squander the Earth's limited resources while sounding forward thinking. Colonizing Mars will likely never happen, there is simply no upside: huge challenges, with no interesting resources. The Earth has plenty of space, we're limited by resources, and there are no interesting resources on Mars. I wouldn't be surprised to find out that we'll have a colony outside the solar system before a colony on Mars.
Asteroid mining is more plausible, but still extremely unlikely given our current technology. There are massive hurdles, and few things that would massively improve life on Earth - it's much more interesting from a profit perspective than a future of humanity perspective.
Musk's motivation, which he has expressed repeatedly, is to make humanity resilient to an event that makes Earth uninhabitable.
Whatever that event might be (asteroid impact, nuclear war, environmental catastrophe, plague, whatever), I think the idea of having a second site of human habitation is not an unreasonable goal.
Which is not, as has sometimes been stated, "giving up on Earth and the rich moving to Mars" -- it's just an insurance policy.
The resources expended to achieve this are tiny. It's not a lot of money, and the consumables are ... literally drops in the ocean.
That's not to say that there aren't other problems that could be addressed using that money, but it's not really a question of either/or: humanity could very easily do both, should it choose to do so. It's just that Musk chooses to focus on this problem, and its solution. We're all certainly free to make a different choice ...
Mars is already uninhabitable, so what would we gain from moving to Mars? The Earth is not going to become as bad as Mars with any possible disaster smaller than a planetary collision.
Also, a Mars colony that could survive indefinitely if the Earth is wiped out is almost certainly impossible, given the extreme conditions on Mars' surface. We don't even know if there is enough water ice on Mars today to sustain a human city, nevermind the huge network of cities that would be required to produce all high tech products on Mars. Also, with no fossil fuels, it's very unlikely that you could launch rockets from a Mars colony entirely cut off from the Earth.
Then, you'll also be missing nitrogen, and probably a lot of other nutrients. Oxygen will be in short supply, as will Helium. And remember, every time you leak water or other gases into the atmosphere, you've likely lost them forever, since there is no closed cycle of water on Mars, and solar winds are constantly stripping away Mars' atmosphere.
Also, the cost of building a self sustaining colony on Mars is well above the GDP of the world many times over. It would be many times easier to establish a second global trade network on Earth, completely isolated from any existing trade hub. Imagine building chip fabs and growing enough crops for food and bioplastics in Antarctica, and now remeber that on Mars it's much colder, there is virtually no air, and you have to dig tunnels everwhere, since any sort of prolonged exposure to the surface would irradiate you. Oh, and make sure you do this without any dependence on fossil fuels, except perhaps a few tons every few months.
> Also, a Mars colony that could survive indefinitely if the Earth is wiped out is almost certainly impossible, given the extreme conditions on Mars' surface.
Let's say you have a Martian colony of 100,000 people. It is self-sufficient in basic goods but still relies on imports from Earth for many advanced goods. Something terrible happens, and imports from Earth are no longer possible. Those 100,000 people have a choice – find a way to make do with what they have, or die. I don't think we should underestimate human ingenuity in such circumstances. They'll lose access to a lot of highly advanced goods – for example, they probably won't have their own leading-edge semiconductor fabs – but they may be able to survive without them, using more basic goods to take their place.
> Then, you'll also be missing nitrogen
The atmosphere of Mars is around 2.8% nitrogen. There are likely to also be nitrate minerals in the Martian soil and rock.
> Oxygen will be in short supply
Mars' atmosphere is 95% CO2. You can extract oxygen from CO2 by electrolysis. The MOXIE experiment on Perseverance has demonstrated this.
> and solar winds are constantly stripping away Mars' atmosphere
On human timescales (decades to millennia), Martian atmosphere lost to space isn't significant.
> Also, the cost of building a self sustaining colony on Mars is well above the GDP of the world many times over
I think Musk is going to try to establish a settlement on Mars, initially with tens of people, then hundreds, then thousands. And becoming fully self-sustaining is going to be their long-term goal. But I don't think actual full self-sustaining status is going to be achieved for several centuries.
Humans surviving long term off of Earth, I think, is still just a pipe dream and pure sci-fi. I agree with the idea, I think it is something humanity should attempt, but it is atleast 100 years too soon to even attempt.
It is like trying to build a space station in the 18th or 19th century.
What's wrong with trying now? (By "now" I mean, "in the next 20 years".) So long as nobody gets killed, if it fails, at least we can say we've tried. Trying now may bring forward the date at which it is actually feasible compared to putting off trying.
Even if people die–and they may–if they make a free and fully informed choice to sign up to something which may risk their lives, and they end up dying as a result – wasn't it their right to take that risk? There are a lot of people out there, who will view being one of the first humans to attempt to live on another planet something worth risking death for.
> The Earth has plenty of space, we're limited by resources, and there are no interesting resources on Mars
There are new discoveries on Earth even today, after hundreds of thousands year of mankind history. What make you think we have known all we need to know about Mars?
> I wouldn't be surprised to find out that we'll have a colony outside the solar system before a colony on Mars.
Mars is a 8 month journey. Alpha Centauri, the nearest star, is a 296,000 year journey using the current propulsion technology. We'll have colonized every single colonizable planets in the Solar System before then.
> it's much more interesting from a profit perspective than a future of humanity perspective.
Future of humanity depends on advance in science. Space exploration has always been a major force that drives science forward, asteroid mining included. So many examples to list, but just to pick one:
> Mars is a 8 month journey. Alpha Centauri, the nearest star, is a 296,000 year journey using the current propulsion technology. We'll have colonized every single colonizable planets in the Solar System before then.
Sure, but there is nothing on Mars. We have no reason to colonize places that lack even the basic resources necessary for life, or some precious resources that are scarce on Earth. At least with a different star system, you can imagine that in some far flung future we may need to escape the expansion of the Sun (though assuming humanity survives for some billions of years is indeed unlikely).
> Future of humanity depends on advance in science. Space exploration has always been a major force that drives science forward, asteroid mining included. So many examples to list, but just to pick one:
I'm not sure what the article was supposed to show, is spectroscopy a technology invented as part of the space program?
It's true that a product of the spave program are advanced materials and other factors that can be re-used on the Earth. But this is more a question of the vast resources which were invested in the space race, which could as well have been invested in Earth programs and would have likely yielded similar results.
Teh most valuable results of the space programs have been communications satellites and things like the hubble space telescope - which has done far more for scientific space exploration than the entire Apollo program, as have the Voyager probes, Mars rover etc.
Manned space exploration may still serve an inspirational purpose, though. I absolutely admit that the social and inspirational impact of seeing a human on the Moon/Mars/in outer space is hard to beat.
> Sure, but there is nothing on Mars. We have no reason to colonize places that lack even the basic resources necessary for life, or some precious resources that are scarce on Earth
You don't know what Mars can offer. Not without extensive exploration that can only be done effectively with human presence. We still don't fully understand Earth.
Human once couldn't survive on the desert. We might still not if we never explored it in the first place. Technologies or knowledge we take for granted today may never exist either. The same will happen with Mars. I don't know what the future hold thousands years from now. We may have terraformed it, human body may have adapted to Mars environment, or we may have found it indeed not suitable. We'll however have permanent presence on Mars, and we'll make major leap in science and technologies thanks to Mars exploration.
> I'm not sure what the article was supposed to show, is spectroscopy a technology invented as part of the space program?
You wondered the role of space exploration in the future of humanity. I reckon that our future lies in the advance of science. Spectroscopy would be much less developed without its application in astronomy.
> Teh most valuable results of the space programs have been communications satellites and things like the hubble space telescope - which has done far more for scientific space exploration than the entire Apollo program, as have the Voyager probes, Mars rover etc.
I'm not sure what points you're trying to make it here? some programs have more short term return than others? We are doing both, right? not only that, investment for something like communication satellite dwarf that for outer space programs.
What is the benefit of living on Mars, rather than a space based habitat that can attach to and mine asteroids or small moons for extra resources? Living in a "large" gravity well seems like all negatives to me in terms of expansion and resource extraction.
To be fair, living in 0g is even less plausible than living in 0.3g long term. In particular, there is a good chance that animals can't reproduce in 0g - those that have been tried have definitely been unable (including insects and chicken - there is still a chance mammals could).
How is star link moving the world forward. A small amount of rural people get faster internet is not a big deal. Satellite based internet already exists, it's not ground breaking. It's also at the expense of polluting the orobit around the earth. It's also just profit motivated, the intent isn't to make the world better, just sell more crap to more people
No. There is a potential user base of millions of people that have no access whatsoever to broadband.
And you can’t be serious in trying to compare starlink with the awful current geostationary satellite Internet offering.
Reusable rockets with massive cargo capacity is just one example. SpaceX equipped rockets will soon be able to carry around 100 tons of cargo to any place on earth in less than an hour; massive implications for disaster response.
Your whole perspective is a bit jarring. At any point in history - on the precipice of technological innovation - someone could have said 'Why go further, what's the point?' And that's just it, your limited ability to see the positive implications shouldn't define where progress goes. If we stopped at the horse-drawn carriage we would have missed the fire truck. If we stopped at Arpanet we would have missed every unforeseen positive associated with the internet today.
What spin off tech have we gotten from them?