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ah-tzib-of-alaska t1_j8rltr5 wrote

Reply to comment by Pornelius_McSucc in Terraforming a magnetosphere possible? by Pornelius_McSucc

That’s a great point and I should have included that as follows:

If you want similar to Earth levels of atmospheric pressure on mars you’ll need much more atmosphere than you have on Earth. In other words, you’ll need a lot more physical barrier between you and the radiation. AGAIN, if you can make the atmosphere you need the magnetosphere is a non issue.

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Pornelius_McSucc OP t1_j8rmksq wrote

Would that much atmosphere being packed onto small Mars possibly create an issue where exponentially more of it is lost at x rate?

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ah-tzib-of-alaska t1_j8rnof0 wrote

oh yes for sure; more than it is now. But it’s already getting less than half the amount of radiation / solar winds force than Earth is. BUT this is is still a non issue; if you can increase mars atmosphere to 3x Earths atmosphere for the same pressure than the loss rate even if it’s 30x what Earth loses is going to be a non issue. You already creating trillions of times of atmosphere than what you’re losing. So after atmo creation you just exude some 1/trillionth of the amount of atmo you already just created. SO ANY useful amount of atmosphere creation makes the magnetic shield a non issue of the goal is humans breathing.

Earth loses 90 tones a year. So if Mars loses 900 tones it’s still going to be a non issue because Earths atmo is like 5.5 quadrillion tones. And if you want 1 bar on earth you’ll need 3x that. And you want to worry about a 100 tones a year after we just made 16.5 quadrillion tones?

Hell if Mars loses 8100 tones a year it’ll be a nonissue.

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