Sure it can be done. There's a very scientifically thorough documentary called "The Core" where they show how it's done. :-)

What we have to do is build a huge octahedron shape(made of carbon) and launch it in the desired orbit. Define 2 magnetic poles on it and start building a spherical shape around it. The elements that r needed to sustain life will be brought from earth and asteroids.

It is now their Starship goal from Shotwell.

https://www.nextbigfuture.com/2022/06/spacex-president-targets-producing-one-starship-rocket-per-day.html

Also look into low gravity making building a thick atmosphere unsustainable too.

There are potential (astronomically expensive and currently technically very improbable) and probably only partial solutions to the lack of magnetosphere, but the gravity problem has no solution that I'm aware of. This is assuming you want an atmosphere as well as radiation shielding.

Nothing wrong in having two earth's!

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Well yeah, building a planet using resources in our solar system is kind of useless in the first place.

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The technology for each is mostly the same, or at least with high overlap. Maybe we can do two things at once. Not saying we focus equal amounts, but it would be nice to run experiments on not earth if we're worried.

Last I checked like 95% the mass of the moons of Saturn are within Titan. You’re not really getting any benefit slamming the smaller moons, aside from destroying their own wonders and create a slightly bigger moon that’s just about as useless and probably way more boring.

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Cresting false moons or trying to restart a planets tectonic convection process is feasible in this scenario?

If we have this ability than near to light travel or building mega structures absolutely is possible. In addition to elevating to we have likely evolved to a level 2 civilization

It would be a lot easer to just transform an existing planet than create a new one.

As is with the "admitted" technology all we could do is hollow out asteroids which is a great idea i believe.

She hates it when I construct biospheres

We could probably take a couple of moons out of Saturn and smash them together.

But it would make more sense to just settle them, or deconstruct them and turn them into orbital structures.

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Lots of folks answering with all the reasons this wouldn't work. Whether or not it's plausible, I think it's a good idea to engage with the hypothetical. What would it take? If it's not realistic, what's in the way? Hypothetically, what would getting around that problem look like?

If you haven't, I'd recommend checking out the "what if" section of xkcd. The author tackles questions like this and gets to some really interesting conclusions.

Furthermore, Carthage must be destroyed.

Trillions, and good luck doing this all without your mother finding out.

Not with the resources on Earth, but the ones in the belt yes..... If you stick enough rocky material together it will form into a sphere, and there is more than enough (but we would probably have to destroy ceres)

Oye Beltalowda sasa ke?

Does making a planet make any sense? No, with that kind of technology, it would be easier to just terraform Venus and Mars. Or mine the Jovian system and turn it into space stations.

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Maybe, but if we were capable of doing such a thing, surely we could just make an existing planet liveable with a lot less effort.

Billions, and good luck dealing with the constant shifting of tectonic plates. Nothing will end up where you want it

>Only if they live on Magrathea.

I was not expecting this reference.

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