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#1 2017-04-01 12:34:48

Oldfart1939
Member
Registered: 2016-11-26
Posts: 691

Is Terraforming Mars a Pipe Dream?

Some new results have been published from the MAVEN satellite studies about Mars' atmosphere--pas and present. The conclusions reached in this paper are --discomforting for those of us wanting to colonize Mars.

http://www.spaceflightinsider.com/missi … tists-say/

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#2 2017-04-01 15:04:36

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 9,851

Re: Is Terraforming Mars a Pipe Dream?

Maven has been a good first step to identifing the loss rate to which man knows that some of that is due to the very weak gravity that mars has, that a lack of radiational protecting belts are all just factors for why were are where we are at for Mars' current conditions.

We have talked about what it would take to create a new megospher for mars and several methods to get it started. The containment of what mars atmosphere is in need of being slowed for loss and for making possible to contain any future build up of one to which man might create.

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#3 2017-04-01 16:22:44

louis
Member
From: UK
Registered: 2008-03-24
Posts: 2,246

Re: Is Terraforming Mars a Pipe Dream?

A pipe dream? No way.  The atmosphere would have been lost over millions of years. We can replace it from material on the Mars surface in thousands (definitely) but probably hundreds of years. In other words we can keep pace with the loss for as long as it takes before we come up with even better solutions (e.g. creating an artificial Mars magnetosphere). 


Oldfart1939 wrote:

Some new results have been published from the MAVEN satellite studies about Mars' atmosphere--pas and present. The conclusions reached in this paper are --discomforting for those of us wanting to colonize Mars.

http://www.spaceflightinsider.com/missi … tists-say/


Let's Go to Mars...Google on: Fast Track to Mars blogspot.com

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#4 2017-04-01 16:37:11

Oldfart1939
Member
Registered: 2016-11-26
Posts: 691

Re: Is Terraforming Mars a Pipe Dream?

My question for these researchers is: do they have any clues to the present intensity of Solar wind as opposed to that earlier in the Sun's lifetime?

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#5 2017-04-01 19:31:43

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 9,851

Re: Is Terraforming Mars a Pipe Dream?

There is more than just a solar wind level from young sun to current to know and consider as the planet has not stayed where it was when it was born, the magnetic field strength has also deminished over time as well.

Starting in closer to the sun would be a higher level of wind on a young planet would still be devistating if the field strength was not intense.... Now if mars started farther out say somewhere near the asteriod belt even with the current magnetic field, mars would hold onto its atmosphere for a very long time as the effect of the solar wind drops with distance.

Maven has given us the current loss rate and some of the remant magnetic strengths and locations but thats about all we have.

I myself have wonder if mars did start in closer could it have been a moon for venus since venus has the retrograde rotation.. or was it part of the asteriod belt possible planetiod which got smacked early on in developement and form what we see as mars....and finally is mars the remains of what hit earth to form the moon leaving mars to slow down afterwards settling into its current orbit....

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#6 2017-04-02 04:02:50

elderflower
Member
Registered: 2016-06-19
Posts: 400

Re: Is Terraforming Mars a Pipe Dream?

I think Venus probably lost whatever rotation it started with due to solar tidal braking. It s retrograde rotation is very slow, but means that it keeps the same face directed towards the Earth/Moon whilst it passes between them and the Sun. I think this is probably maintained by tidal effects also.

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