Why are so many people obsessed with colonizing Mars?
Even if we can melt it's ice and make it warmer it's going to be losing atmosphere due to weak magnetosphere. And it's gravity is unhealthy for humans.
You dumb faggots realize we have pressurized suits that negate the weaker gravity? Do you seriously think NASA and SpaceX are just doing this shit without putting any thought into it? god dammit i hate people like you.
Wouldn't it just be easier to build an orbital space habitat with earths gravity in orbit?
Wouldn't this be possible now, with existing technology and pave the way towards further space exploration?
WE can fully mitigate the negative bone density effects of microgravity with the right exercise. It would be much easier to deal with lower gravity. It might even have some positive health effects.
Not over the longer term. After several generations spent on Mars "Martians" would become a legit sub-branch of the human evolutionary tree.
Unable to return to Earth and survive in the harsh gravity there, they would develop their own religion and wage war with those on Earth.
What about the lagrange points? The station could double as a space observatory of the highest order as well as providing a unique niche space manufacturing industry, utilising the low gravity environment and near vacuum of space.
Escaping atmosphere isn't that much of a problem. The atmosphere is mostly CO2 which means plenty of oxygen to extract. Actually, finding sufficient amounts of neutral gas (nitrogen) becomes a bit of a problem.
Terraformation of Mars is impractical due to the low gravity, but sustainable, expandable habitats should be doable. Something to support population of several thousand people indefinitely.
Gravity isn't a problem - return to Earth after prolonged stay is. The organism adapts to the decreased gravity by losing unnecessary muscle and bone mass, and it's capable of functioning like that just fine with no time limit. It's the recovery to 1g that becomes the problem.
Power, oxygen, minerals, metals, oxygen and carbon dioxide - that's all available there. The rest can be grown or manufactured once the base is bootstraped.
Now, why? Because we (probably) can, isn't good enough?
>Wouldn't it just be easier to build an orbital space habitat with earths gravity in orbit?
I mean it would be possible but you would have to constantly run re-supply missions. I'm assuming a Mars base would achieve a certain level of self-sufficiency.
You're thinking on too small a scale. This would be something pretty big and largely self sufficient. A stepping stone from which to begin real utilization of space without constantly having to pander to Earths atmosphere and escape so much of its gravity.
Well I mean again, you could, but if you had a mars base you could utilize local materials for building expansion and whatnot, possibly even extracting some water for use by the settlers.
Consider all humanity has done on earth in the last 3000 years.
Mars' atmosphere would take 1000 times longer that to start boiling off.
You can get a lot of shit done in that time. I doubt human civilization would even last that long.
Let's not forgot that earth itself has an expiration date too.
Nice reference but I thought I was being original. Guess it's hard to do nowdays.
Honestly I just feel really bad for those future mutants. Stuck on a shithole planet and not ever able to go where all the fun is at.
You bore a huge cylinder through the polar axis of the planet and construct a giant electronic artificial dynamo to give the planet a magnetosphere. You power it with Thorium reactors supplied by local mines.
>You dumb faggots realize we have pressurized suits that negate the weaker gravity?
every single fucking thing that would help us is too fucking expensive. i suggest we just fucking freeze the economy for the duration of a large scale space project, y'know? just forget fucking money, hire a shitload of engineers and physicists, put them in one place, hand out foodstamps to them fuckers and bribe the farmers who make the food to make it for free with free tickets onboard whatever thing we're building
I haven't touched electrodynamics since college, but I don't think you'd actually have to build a literal metal rod through the whole planet. I think if you simply had a pole and antipole linked with just enough material to hold the current and you'd have a magnetic field. You'd only need to construct giant linked surface complexes at the north and south poles. They might even be able to be linked on the surface rather than through it.
The power involved IS another matter. I think it's a relatively simple calculation to determine the watts necessary for the required field, and then to see how many power plants you'd actually need.
A self-sustaining "citizen ISS" could definitely work in the future -- we recently grew vegetables on the ISS. Kale, I believe. Astronauts ate it, and there's all kinds of botanical science happening up there.
Biggest problemo for an orbital space habitat would be bone density, muscle loss, bodily fluids, pressure on the eyes, mental stress, etc..
We can BARELY mitigate the negative effects of microgravity with exercise. Exercise takes a good chunk of an astronaut's time on the ISS, and they still tend to come back to Earth rather unwieldy.
Why not just colonise Venus instead?
Its about the same size as Earth.
Dump shit loads of microorganisms into its atmosphere and wait a few million years for them to gobble up all that shit.
Hey Presto! A new Earth!
Just take a sun shade when u go outside.
> farm in a zero gravity environment?
Probably would be much cheaper and easier to just have a structure on the end of a wire spinning around a captured space rock to start with.
>Dump shit loads of microorganisms into its atmosphere and wait a few million years for them to gobble up all that shit.
You're a moron.
Is everyone in this fucking thread retarded? Or is it just me?
Well ideally you'd start off on a much smaller scale and develop a space manufacturing industry to construct it out of materials harvested from space.
Also, while I hate to mention it, a space elevator on the moon or the surface of Mars would be feasible, unlike building one from the surface of Earth. But honestly the moon is a better bet than Mars for this I imagine.
A space elevator could move pieces into orbit which had been mined and manufactured on the surface of the body.
You know Venus isn't totally ridiculous, its gravity being similar to ours makes it plausible, we would just have to build structures which orbit the planet or sit off the surface rather than ones that sit on the surface.