>I’ve seen a number of different theoretical approaches to solving the magnetic field issue that are all capable of being developed by our current level of technology;

what kind of resources would it take? will the Earth be depleted of what we need by the time we are able to transport ppl and equipment to Mars? I wish I would be alive when this (hopefully eventually) happen!

Tried it for the first time this week, funny enough.

I also hate posting to reddit on my phone.

Unfuck planet Earth before you even think of Mars.

We don’t deserve another planet, we’d only ruin it again.

Doomguy: angry unf

But the rate it loses atmosphere is not that fast.

Not a perfect source, but someone on Reddit mentioned it to be around 200k years, so it could be topped up once a while.

I have an idea for terraforming both Mars AND Venus. Or atleast transform the atmospheres to be survivable for human using only respirator, without need for pressurized suit.

Premesis:

1. Venus has too much gas (CO2). Too high pressure and greenhouse effect.
2. Mars has too little gas. Too low atmosperic pressure, ang greenhouse effect.
3. There is 90× as much gas in Venus that is needed in Mars. Altough maybe only just enough nitrogen for one planet for earth like atmosphere.
4. Venus is closer to the sun, while Mars is furher away.
5. Solar sail can be used to propel stuff away from the sun.

tecnological requirements:

1. Space elevator; (perhaps with graphene cables)
2. orbital manufacturing, using mainly CO2, sulphuric acid and sunlight;
3. functional solar sail (not absolutely nesessary as Venus has enough excess gas to be used as propellant).

Steps to carry out the step 1. Build a space elevator in Venus.

step 2. Build a manufactacturing facility on top of the space elevator that runs with material sourced from the atmophere of Venus, and solar energy.

step 2.5. Use the facility to build more space elevators and orbital manufacturing facilities.

step 3. Build a massive fleet of solar sail freighters that will carry needed amounth of Venus atmosphere to Mars in solid state.

step 4. Pump atmosphere to pressurized shaded containers in the orbit, for cooling below freezing tempersture.

step 5. Send packaged athmospere towards Venus on Solar sail freighters. Part of the cargo can be used as propellant if needed, or if solar sail isn't feasible.

step 5. Reusing the freighters The freighters could be reusable by using combination of gravitational slingshot around Mars and ejection of the cargo at high velocity to gain needed thrust to get back to Venus (slow orbital speed around sun). Don't know if solar sail could be used to actually "sail" croswind, as to slow down the orbital speed around the sun. If it works, then the sail could be used to manouver the return flight. If not, it would be retracted and only deployed to adjust speed to regain orbit with Venus.

step. 6 repeat untill Mars has enough atmosphic pressure and greenhouse gasses.

step 7. perhaps create a small organic moon of the rest of the excess gas around Venus and mars for later use and topping up the atmosphere when needed.

An other idea to trap CO2 from atmosphere of Venus:

We could create billions of tons of artificial diamonds out of the atmospheric CO2 on Venus. Diamonds would not corrode from sulphuric acid rain that Venus currently experiences. Later there might be ways to trap CO2 with syntethic photosyntesis to decrease atmospheric pressure.

From the moment I understood the weakness of my flesh, it disgusted me. I craved the strength and certainty of steel. I aspired to the purity of the Blessed Machine. Your kind cling to your flesh, as though it will not decay and fail you. One day the crude biomass you call the temple will wither, and you will beg my kind to save you. But I am already saved, for the Machine is immortal… Even in death I serve the Omnissiah.

It’s not that it gets too close to the sun - it’s that it lacks a magnetic field to shield its atmosphere from the solar winds.

Earth’s magnetic field is generated by convection currents in its molten iron core - this is suggestive that the core of Mars has either cooled significantly, or has an incorrect elemental composition.

I’ve seen a number of different theoretical approaches to solving the magnetic field issue that are all capable of being developed by our current level of technology; I suspect there will be significantly more solutions with the level of technology we’ll be at when terraforming Mars becomes a serious consideration.

As for generating an atmosphere - that is a (relatively) straightforward process that doesn’t involve much more than towing some ice from the asteroid belt (to get water) and seeding the water with Cyanobacteria and some kind of heat source.

At our current level of technology it’s not science fiction. It’s simply not economically viable.

Until that magnetosphere gets going again Mara is in for a bad time

Not to put too fine a point on it, but Mars is the fourth planet -- further from the sun than Earth.

There's science to part of your statement, but it's not about proximity to the sun, it's about not having a magnetosphere

Mother nature will not place a 1 Tesla electromagnet at L1. We can do that.

No, that's an orange growing mold

Bloodydamn

It's corn. What's not to like.

Did earth lose its water rights

It's not fully terraformed until we have poluted the hell of that planet.

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sad that i will never see this happening, only major thing what will happen in my lifetime is probably the planned mars flight what will happen in 2035's ish.

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by 2100 it can already be really common tourism to fly to mars. Fucking boring life fuck my life.

Calm down vegeta

Took 10s of millions of years to lose it, we can regenerate faster than that

This.

It gets too close to the sun, Mars had an atmosphere, but it was stripped of it because of the sun and solar radiation.

What do we honestly think we can do that mother nature couldn’t?

A unilateral wet dream. The lack of magnetosphere alone proves it is a waste of time and resources. I don’t mind sending Phony Stark there on a one way trip there though.

What about just not Marsaforming Earth ?