Walking on Mars, page 1
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Topic started on 7-1-2008 @ 03:34 AM by Ben Miller
The official story of the atmosphere on Mars is that there is only .13% oxygen and 95.32% nitrogen.

www.daviddarling.info...

It seems that this atmosphere is excellent growing conditions for plants but seriously deadly for humans.

All in all though I would think the space suits with the rebreathers that are commonly used in space walks would suffice.

Does anyone have any theories contradicitng the official story of the atmosphere?
Is there any other dangers that need to be addressed for humans to walk on Mars?
Would planting fast growing vegetation/landcover "fix" this atmosphere and how long could it take? (of course the lack of water problem would have to e solved for this bold plan to work)
Have they done any seismographing of the surface to detect water below ground? (that could be drilled for)

Your thoughts are welcomed


reply posted on 7-1-2008 @ 09:51 AM by borek
I'm not an expert in this subject, here's my 2 cents...

Originally posted by Ben Miller
The official story of the atmosphere on Mars is that there is only .13% oxygen and 95.32% nitrogen.


95.32% of carbon dioxyde, you mean.

It seems that this atmosphere is excellent growing conditions for plants but seriously deadly for humans.


Well, it's not that simple. Don't forget that most plants still need oxygen to breath, in addition to need CO2 for photosynthesis. So I guess, in order to change Mars' atmosphere to support life, at first we would have to use organisms like primitive algae, before introducing more complex plants. I'm not biologist, but I guess those primitive organisms would still need liquid water...?

But there are several other variables to consider: I think, before anything else, we would need to increase dramatically the temperatures in Mars, possible with greenhouse effect. There's also the problem of solar radiation, which is much more intense in Mars. There's been debate on the sustentability and effects of life under intense radiation.

All in all though I would think the space suits with the rebreathers that are commonly used in space walks would suffice.


In principle, yes. Only problem I see with the suits is that the astronauts would be exposed to solar radiation during a lot more time than they have been currently. I don't really know if additional changes on the suits are being planned for a trip to Mars, but NASA is likely considering all this.

Does anyone have any theories contradicitng the official story of the atmosphere?


I don't, but a lot of people here might have.

Is there any other dangers that need to be addressed for humans to walk on Mars?


I think the biggest challenge is the effects of a long term presence in the Mars environment, considering radiation, low gravity and low pressure. And these things are much more difficult and even impossible to change - even if the atmosphere is breathable.


Would planting fast growing vegetation/landcover "fix" this atmosphere and how long could it take? (of course the lack of water problem would have to e solved for this bold plan to work)


As I said, I think at first we would need to increse surface temperature. And this could take a lot of time. It's difficult to predict with what we know (we don't even know for sure the effects of greenhouse in Earth itself, hehe), but I'd guess at least tens of thousans of years?

Have they done any seismographing of the surface to detect water below ground? (that could be drilled for)


I know there's been studies on this, but as far as I know, "earhquakes" detected on Mars haven't revealed water. But considering things like sensibility and less sismic activity in Mars, I'm not sure we would find water, if there's any, with the seismographs we sent there so far.


reply posted on 7-1-2008 @ 10:02 AM by Ben Miller
reply to post by borek

Correct, it is Co2, I was typing two lines behind what I was thinking.
thank you for catching that. I guess the best way would be to establish a dome type of base and then begin excavating for an underground base.
seems like alot of effort and for what? Why colonize Mars? I keep asking myself but can't seem to come up with anything, except for a second home in case this one starts to go downhill. But it would have to go a long way downhill just to get where Mars is now.



reply posted on 7-1-2008 @ 11:50 AM by Fromabove
reply to post by Fromabove



On the gas thing, yes there are other small body "roids" that contain enormous amounts of liquid oxygen that could be transprted there and aloowed to enter the Martain atmosphere. See, I don't believe that Mars had a severe trajedy or that it "lost" it's atmosphere. I believe it is mostly condensed and absorbed into the crust due to the core cooling down. Or quite possibly, it didn't colect enough from the solar systen itself. So it could be done intentionally I would think.


reply posted on 20-2-2008 @ 01:06 PM by Nailer
reply to post by Ben Miller



Just have the USAF release some chemtrails and cause the rain as they are such good weather makers.LOL


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