"Once the size is large enough to hold 1 Atm of air pressure at
ground level you could feasibly start unlocking oxides in the soil to
make it livable"
Why that? Who says Mars can not hold 1 bar? Venus is Earth sized and
holds 90 bars!!
So Mars' Mass = 1/10 Venus' Mass => Atmosphere = 90/10 = 9 bar.
On 31 Jan., 17:40, mad_casual <ademloo...@gmail.com> wrote:
> Venus is a much more desirable candidate for many reasons:
> Mass- Mars isn't big enough to support an atmosphere fit for human
> habitation. You could float habitats on Venus' atmosphere.
> Productive Energy (thermal and non-ionizing radiation)- Mars' surface
> is relatively devoid of non-destructive energy. Venus has too much,
> even simple heat pumps would effectively convert atmospheric energy to
> other forms.
> Destructive Energy (ionizing radiation)- Mars is awash in it. Venus'
> atmosphere has a magnetosphere that affords a level of shielding.
> Chemistry- Mars has lower water, carbon, and nitrogen in any form on
> its surface or in its atmosphere than Earth. Venus has more of all of
> the above, typically boiled in acid and at 90 atm of pressure such
> that they are unusable to biological systems.
> Value- Fixing Venus teaches us lots about "fixing" Earth. Fixing Venus
> will be all about collecting energy rather than just expending it.
>
> IMO, put an outpost on the Moon, colonize Mars, terraform Venus.
> Anything else is making a purse out of a pig's ear. On that note; the
> human body is supremely adapted to this planet and for relatively
> short periods of time at that. Bending atmospheres to fit our lungs,
> putting chairs in spacecraft to fit our rear ends, and blasting
> surgeons and/or medicine around the Solar System is, to me, somewhere
> between naive fantasy and religion.
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