Well, I don't know who you all are, but take a qualified answer from a physicist and a farm kid. You aren't going to grow any food on the moon. Mars, that's a maybe, but a seriously doubtful maybe.
Moon -- agree. No atmosphere, would have to import all of the soil(?). I'm not sure about the daylight so I'll assume your right.
However, once initially imported could it be sustained (assuming you could get around the daylight issue, if there is one) with minimal amount of further imports?
As for Mars, I haven't heard of any reason why we couldn't grow vegetation on the planet. Most of the atmosphere is CO2. Its atmosphere is too thin, but plants do not need as much atmospheric pressure to survive as we do. Inflate a plastic hemisphere with a fraction of the pressure humans would require and they'd be fine. Water is existent (frozen). As far as soil is concerned, according to:
http://www.amazon.com/exec/obidos/tg/detai...=books&n=507846 pg196, the nutrients lacking in martian soil for plants are potassium, molybdenum, boron is unknown, and Nitrogen is an unknown (at the time of the writing, 1997). There is nitrogen in the air though so I don't see it as a show stopper. According to the table on the page Martian soil is much richer in all of the other nutrients needed for plants.
It's been since sophmore year of high school since I've read up on any of it so take it as you will.
I see Mars as more compelling than the Moon (although it certainly does have its uses), but I was converted to being all go for space since I read that book I linked above, The Case for Mars, and another book Entering Space, both by Robert Zubrin when I was a sophmore in high school. It's actually why I am an aerospace major at university. The only way to open up space is to get the private sector involved, and to do that we need affordable launch capabilities as well as some possible profit to be made in space. So my dream at the moment would be to provide the former. To make launch affordable, and if you can't think of any way to make money by utilizing space then you can just stay grounded.

QUOTE (Carbonflux+)
I think the best hoax would be to have a sat. find a huge mineral deposit on the moon.
GOLD!!! heh...
I think you're on to something! Millions of tonnes of PLATINUM just sitting there on the Moon! A large asteroid must have impacted and deposited it!
Good Elf
22nd September 2005 - 11:58 AM
Hi All,
Going to the Moon would be great. Really... I would not hope for anything better. All that wasted money going on Wars - those of you should be speaking about that instead of coming down on Moon Missions ($360 Million a day). But I do not think that George Bush cares what is being said as long as it provides the right level of "domestic" distraction. He has "problems" and he has no solutions. The important words to listen to is "no extra funding"... not one cent. It is supposed to be paid for using current budgets and current technology. Well I dunno.... George W. Bush will no longer be President when this program is supposed to start. Well I doubt if it will ever "get off the ground" since there seems to be little justification for it other than a one off "stunt". Next year all will be forgotten... there is no "space race" to the Moon anymore and the US has gotten itself into deep do-do with their British and Australian mates eh!
Decades ago when they quickly "trashed" all twenty four remaining Moon Rockets so that it would be "impossible" to go to back to the Moon again, there was a promise then to return by 1985... then 1990... then 2005 now it's 2018.... Pick a number any number less than 200.
Lets be realistic... without any "pressing" reason the US is not going to the Moon for one very good reason... the administration that starts this venture has to pick up the tab and some other administration... not necessarily their own Party... will reap the benefits. This is "politically" unacceptable and with current economic and political rationalist philosophy that will be the end of it. Unless "new" technology is discovered that allows a Moon Mission
within two terms of Office "arrives", forget it. This is Peter Pan stuff... "All this has happened before and all this will happen again... this time it is happening to "Generation-X"."

Sorry but Cheers
555Joshua
22nd September 2005 - 07:29 PM
You can grow food indoors you stupid b'stards. It's called green houses. NASA is already able to grow stuff in outerspace.
Carbonflux
22nd September 2005 - 09:49 PM
My Dad worked for a bunch of defense contractors in the 50-60s, he told me there was a plan floating around where a low yeld nuke using an element with a short ( ms long ) half-life would be set off undergrond, this would create a hollow space which would be pressurised and lit...etc...
There were complex plans for growing food in this space.
Its my understanding that some of the underground nuke test sites are now salt mines, etc.
Best Regards
LunExCo
29th September 2005 - 06:24 AM
2018? Could it be any farther away? For Christ's sake, NASA needs to get a little more serious. 2010.
LunExCo
29th September 2005 - 06:26 AM
Honestly, 2018 is so far away that NASA is going to get trumped by some private conglomerate who will land people on the moon several years before that, and start planting flags and claiming property. 2018?! No wonder people dn't want to pay for it. Many of theem will be dead before they can even see it. Move it up to 2010 and people would say, wow! NASA's back! 2018? Whatever. Zzzzzzzzzzzzzz.
Guest
29th September 2005 - 06:44 AM
QUOTE (Carbonflux+Sep 21 2005, 03:25 AM)
I agree with the basic point, we should do what is quickest and get a foot-hold the rest will come.
Didn't we do that in 1969? The rest hasn't come yet!
cwes99_03
3rd October 2005 - 07:44 PM
You go build your green-house. When you need the water, nutrients and everything else that gets removed everytime you harvest you will understand. If you don't understand the food production process then maybe you should can the attitude and take someone's advice when they have more incite and knowledge than you. The plants grown in space are not for human consumption. Most of them are aquatic plants, grown in zero-g with little or no soil, and the amount of energy spent by the whole process means that the plants are started on earth and grown for considerable amounts of time before being sent up in space for a whole three days to see how they handle the stress. 555Joshua, every forum you comment on you make such stupid and assinine points.
spacejunkie
14th October 2005 - 05:54 PM
First let me say that I am NOT advocating anything that 555Joshua has said on this tread. However you are incorrect about past greenhouse experiments in space...
http://brp.arc.nasa.gov/GBL/Habitats/bps.htmlI do agree with your assessment of the current need to replenish fundamental resources from earth. This is exactly why NASA et all are looking for and finding natural resources on extraterrestrial bodies. Obviously the idea here is that eventually the space born resources will be utilized on future missions as required. Try not to sound so smug in the future unless you actually have a good handle on what you are trying to communicate. If space advocates can't at least respect each other then the whole movement is doomed. We are few and far between and every believer counts.
All my best,
The Spacejunkie
555Joshua
9th November 2005 - 03:18 PM
QUOTE (cwes99_03+Oct 3 2005, 02:44 PM)
You go build your green-house. When you need the water, nutrients and everything else that gets removed everytime you harvest you will understand. If you don't understand the food production process then maybe you should can the attitude and take someone's advice when they have more incite and knowledge than you. The plants grown in space are not for human consumption. Most of them are aquatic plants, grown in zero-g with little or no soil, and the amount of energy spent by the whole process means that the plants are started on earth and grown for considerable amounts of time before being sent up in space for a whole three days to see how they handle the stress. 555Joshua, every forum you comment on you make such stupid and assinine points.
It's a work in progress. There will be a time when we figure out how to grow plants in space from seed. There will be a unit which prevents water loss by capturing the vaper.
FYI, I have a pretty good Idea of the farming process. I just so happen to live on a farm. I know it needs firtilizer, light and water to keep the plants alive. Not to mention the different gravity on the moon, but since scientists don't have a moon base, they can't learn anything about the way plants react to the moon. Thus, they cannot move forward.
I think I have made my point clear.
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