Mining Suns For Terraforming?

In my story, I have a fairly advanced human race who is at the point they want to start terraforming planets. Of course, all of the materials necessary have to come from somewhere, and the proposed solution is simple. In solar systems devoid of life and livable planets, mine the sun for use in atmospheres and planets for increasing the mass of other ones.

One thing I noted would be that the sun is made up of mostly hydrogen and helium, so while a sun would provide a good amount of hydrogen, it wouldn't work very well for other atmospheric components (as in more fusion would be required to produce a reasonable amount of oxygen or carbon).

My question is how technologically advanced would a civilization have to be to do this? What would be some of the difficulties facing this method? If this isn't really feasible, is there another way to find atmospheric components and water for terraforming?

posted almost 8 years ago

Xandar The Zenon‭

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