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Green Plants for Mars Mission

An anonymous reader writes "NASA doesn't keep back that they are going to send a human expedition to Mars in a couple of decades. One of the obstacles for the longstanding 35-million-mile voyage is a food production. NASA researchers have focused on 20 plant species that NASA believes could be grown during a flight to Mars and after landing on the fourth planet from the Sun. By far not all of them are suitable for space expedition."

33 of 262 comments (clear)

  1. summary=story by Emugamer · · Score: 5, Insightful

    wow that is such a fluff piece, it says that the actual information will be released later on, it doesn't mention the species of plants looked at, it doesn't explain much other then they look at byproducts and that they want to help the crew survive... :) where is the geeky stuff?

    1. Re: summary=story by Black+Parrot · · Score: 5, Funny


      > wow that is such a fluff piece, it says that the actual information will be released later on, it doesn't mention the species of plants looked at

      They don't want to scare off tommorow's potential astronauts with a long list of vegetables.

      --
      Sheesh, evil *and* a jerk. -- Jade
    2. Re:summary=story by Anonymous Coward · · Score: 3, Informative

      parent is insightful. the linked article provides little information. all that i could find is an article mentioning radishes, green onions, and lettuce as possible candidate species.

      A-Day

    3. Re:summary=story by gobbo · · Score: 3, Interesting

      Interesting to note in that story that they mention low-pressure growing environments to reduce structural stresses. If you've ever been up to super-high altitude places like the Andes or Himalayan valleys, you'll see some massive vegetables, because of the strong sun and carefully managed micro-climates. I wonder what the pressure threshold is for typical vegetables to thrive.

    4. Re:summary=story by demachina · · Score: 4, Insightful

      An empty fluff piece is kind of a metaphor for NASA's manned space program these days. They spend lots of money on make work programs, research lots of things, many trivial like this, none of which seem to involve bending metal, putting humans into space or sending them back to the moon or on to mars. Its really turned in to a high tech welfare system and jobs program. They've become so obsessed with making space flight safe they won't fly until its safe. Since they can't make it safe they don't fly but they keep spending money just as they were and waste time and money on the ground like this.

      I really wish they'd just shut it down and give all the money to Burt Rutan in no strings attached grants.

      The Discover channel has been running a great multi part documentary on Burt's team, "Black Sky: The Race For Space". The thing that really impresses you is the fact they still have lots of emotion about their endeavors and are clearly a no nonsense, seat of the pants, group of engineers and pilots doing thing they believe in, and doing it on a shoestring.

      Burt has lots of CAD drawings and sketches for his concept of an entire private space program including orbital vehicles, space stations and vehicles to get out of LEO. He really reminds me a lot of Kelly Johnson the genius behind the Lockheed Skunk Works, the SR-71 etc.

      If he had a fraction of the money NASA is wasting year in year out on its manned space program, and not even launching anything, he could build a space program that would capture people's, especially young people's, imagination again like Apollo did.

      --
      @de_machina
  2. Canabis could be ... by Anonymous Coward · · Score: 5, Funny

    a good candidate for the mission. I guess travaling that far can be boring .

    1. Re:Canabis could be ... by Salsaman · · Score: 3, Insightful
      Actually, hemp (the plant) would probably be a good choice. It produces more biomass (i.e usable, processable, stuff) for the same amount of sunlight than any other plant, and thus will readily produce oxygen from carbon dioxide. The oil is very high in many nutrients and can be burned for fuel, and the processed fibers can be used for construction (if compressed) and for clothing.

      The only problem is society's taboo with this particular plant. If that could be overcome, then I would imagine hemp, seaweed and algae would be good choices to take as plants.

  3. Spam spam spam spam! by shawnywany · · Score: 3, Funny

    Spam... Comes in a small can, and tastes great. As a good long-term food source, it's great--just ask me. The poor university student. :(

  4. Food Source by cyber_rigger · · Score: 5, Funny

    Why can't we just eat at the Starbucks that will be there by the time we get there.

    1. Re:Food Source by Joe+the+Lesser · · Score: 5, Funny

      Your right, it would be like NASA to buy a 7 dollar cup of coffee.

      --
      "I only speak the truth"
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    2. Re:Food Source by JollyFinn · · Score: 3, Funny

      What is this starbucks everyone seems to be talking about, restaurant? Coffeeshop?
      I'm from Finland, I think I've never seen one.

      --
      Emacs is good operating system, but it has one flaw: Its text editor could be better.
  5. Re:Where's the device that speeds and slows the by chris+mazuc · · Score: 5, Informative

    Actually, smoking in such a limited atmosphere might overload the air handlers. Brownies would probably be a much better idea.

    --
    E pluribus unum
  6. Re:What is the point of going to mars? by norkakn · · Score: 4, Insightful

    I vote that we fix SS, healthcare for all, edcation for all AND mars.

    We just have to stop bombing so many people to pay for it.

  7. Re:What is the point of going to mars? by patdabiker · · Score: 3, Insightful

    Yes, abandon all work towards the future until we can handle the present. Society has gotten to where we are today by continually looking towards the future. Plus, solutions NASA develops frequently benefit the general public in unexpected ways.

  8. I can see it now... by ardustry · · Score: 5, Funny

    ...fifty years from now, we find that the only plants that would grow on Mars are ragweed and poison ivy.

  9. Re:Efficient? by Ohreally_factor · · Score: 4, Interesting

    First of all, I highly doubt they're going to use "dirt". Hydroponic growth medium of some sort I might imagine.

    Second of all, the plants serve a dual purpose: food and oxygen replenishment. Cans don't change carbon dioxide into oxygen. They can't.

    Third, space needed depends on the plant. Maybe they'll use algae, which is a plant.

    --
    It's not offtopic, dumbass. It's orthogonal.
  10. Closed System test run by spineboy · · Score: 3, Interesting
    It seems pretty obvious to me that they will need to do a several month long completely closed dry run. Plants can make some pretty funky compounds - they engage in chemical warfare with eachother - that's where we get the starting base compound for our chemotherapy drugs, and other medicines.

    Anyway, it'll be kind of a drag being locked up on earth for a few months in a small closed environment - but I wouldn't trust relying on plants any other way.

    --
    ..........FULL STOP.
    1. Re:Closed System test run by RAMMS+EIN · · Score: 5, Interesting

      Actually, they've tried to do a closed system test run. The project was called Biosphere 2 (Biosphere 1 being nature).

      From what I recall (the Wikipedia article doesn't seem to mention this), The project was either a great failure or a great success, depending on how you look at it. It was a great success, because life thrived in it. The failure was in the fact that the system wasn't balanced very well, and the lifeforms that thrived were the likes of cockcroaches; not the humans that were intended to do scientific experiments there.

      --
      Please correct me if I got my facts wrong.
    2. Re:Closed System test run by Richard_at_work · · Score: 3, Informative

      Biosphere 2 was a technical failure. THey had to pump extra oxygen into the system after it was discovered that the extinction rate within the dome was a lot higher than expected. Something like 70% of all species put into the system to begin with died out within the life of the experiment.

    3. Re:Closed System test run by gobbo · · Score: 3, Interesting

      I've often wondered why efforts like this don't design a habitat inside cylindrical tanks of water. Portions of the tank system could be used for aquatic food sources like fish, and part of the reclamation/purification cycle. All of it would serve as reservoir, and potentially an emergency fuel source. Done properly, it could also help with radiation shielding.

  11. the list by r00t · · Score: 5, Informative

    zucchini
    garlic
    kudzu
    black beans
    trumpet vine
    sweet potato
    bamboo
    red beans
    spider plant
    black-eye beans
    redwood
    dill
    onion
    mustard
    catnip
    fava beans
    stinging nettle
    cabbage
    thistle
    dandilion

    1. Re:the list by gobbo · · Score: 4, Interesting

      Interesting, and as a gardener with farmers and nutritionists for friends, believable. Where did you obtain this list? (uncited, so not really informative, mods)

      Sweet potato is a large plant, lots of beta carotene. A few of these plants are very heavy feeders, but rapid growers. Nettle is a nutritional secret: you can almost live on the stuff alone. Spider plant is a heavy breather. Not many people know that kudzu is good for you, or that dandelion used to be a cultivated staple in european gardens--you use the whole plant.

      Catnip, redwood, trumpet vine, and thistle are headscratchers, though. Medicine, wood, and mulch?

    2. Re:the list by gobbo · · Score: 4, Informative
      If that list is bona fide, I'm surprised soy beans aren't on it.

      I'm not. Fava is also a short bushing bean--so it fits the same stacking profile for access to light--and just as versatile with less processing required. Soy is good for large harvesting machines, which has something to do with its ubiquity--it's tied to a large industrial system. Simply boiled fava beans taste better than soy prepared the same way. They have similar nutritious characteristics. Less processing=better nutrition, better energy consumption. Give me a fava plant in the garden over soy any day.

  12. Plants that failed by Dark+Lord+Seth · · Score: 4, Funny
    • Palm tree: No palmtree-sized spaceships available yet. Adding 10 foot high skylight to craft inadvisable.
    • Marijuana: Used up before launch by ground crew, causing crew to riot.
    • Sugar cane: Last sugar rush of crewman Johnson cost us 3 million USD.
    • Juniper berries: Crewman Richards managed to build a distillery out of a first aid kit, never mind what he can do with a spaceship.
    • Experimental mold: Last batch got killed by the maid.
    • Experimental mold mk2: Last batch killed the maid.
    • Money trees: Waged war with Financing, lost the money trees.
  13. Being stoned is pretty boring too by Anonymous Coward · · Score: 4, Funny

    Besides, where would they put the 2 tonnes of Cheetos required for the trip?

  14. Nah, NASA would buy... by lxt · · Score: 3, Funny

    ...a 1 cent coffee, and a $6.99 paper cup :)

  15. Survival of the Fittest by airship · · Score: 5, Interesting

    Why not just fill a capsule with seeds from every plant on earth and have it crash into Mars about 20 years before we go there? Anything that can grow, will grow, and we'll find out what works without a bunch of expensive and potentially futile research. Like they say in Jurassic Park, "Nature will find a way". :)

    --
    Serving your airship needs since 1995.
  16. Sadly, I think that you are getting your wish by WindBourne · · Score: 3, Insightful

    Look, every society that looks inwards ends up decaying. There are no solutions for all of societies ills. It is the reason why Communism will never work. Mankind is its own worse enemy. By looking outwards and expanding to the stars, we will increase economically as well as improve our own conditions. Think about when America prospered. Our greatest times where probably during the late 50's until late 60's. A big part of that was doing things such NASA, but in the right way. Now, NASA is just a tool that is being bantered about by politicians to be used to improve their own voting records, but not necessarily the USA.

    Bush's ideas of not shooting for Mars, but going to the moon, all but guarentees that we will have enormous costs for a long time. The moon has no real resources. But even if Kerry gets in, I think that we are still in trouble. Our best chance at this is the X-Prize being moved into y-prize and z-prize, etc. With Paul Allens interest in the future, he is funding a number of space related things as well. I suspect that he will be able to get some commercially viable companies on to new ground. Literally. In fact, if the private Russia trip really is shooting for Mars happens, I think that it probably has Allen's backing.

    --
    I prefer the "u" in honour as it seems to be missing these days.
  17. Martha Stewart by shubert1966 · · Score: 3, Funny

    The list posted above cannot possibly be correct. Maybe they should get Martha Stewart on this one. She's good with recipes and used to living in confined spaces.

    --
    Stuff that matters.
  18. actually... by zogger · · Score: 4, Interesting

    ...some of the simpler plants like algae (blue green) and chlorella and some of the yeasts are a good choice. Rapid growth cycles, easy to grow, extremely nutritious and because they come in tiny single cell size they are highly digestible. Probably the best bet for a closed cycle system, to get the most calories for the effort.

    Too add to the list down below, I'll throw in a few I know are very nutritious and fast growers,and also able to take some extreme environmental conditions, efficient in other words

    lambs quarters

    purslane

    kale

    bunching onions

    along the same lines, chives

    sweet clover

    There's some other fast growers and tougher plant candidates but they are nastier tasting, like some of the lichens. If they had enough light and a salt water/mineral mix tank, dulse might be a good choice as well.

    Left out things that would be too hard to grow in an enclosed small place, there's quite a few really. In normal cultured gardening, there are just hundreds of candidates probably, it really *is* a variable that would be determined on space available and how much water is available, light available, and that is about it. Modern vegetables are pretty good at being *food*, most of them have been very successfully bred over the generations to be fast growers, etc, they just need a *lot* of water and root and foliar space, and a lot of them are not edible until they achieve a large size, or are not practical because of length of time for seed to seed. I would assume that is what is the big drawback to what the selections might be. For example, corn is tasty, but only medium nutritious, takes a huge amount of resources and space, and even the fastest corn is still weighing in at about two months growing time. Off the list. The radishes though, heck ya, about perfect. I think their primary criteria would have to be a fast generational cycle and having most of the plant be edible. And they could always do just sprouts, dried grains and seeds are fairly compact and already being mostly dehydrated they are efficient to launch weight wise, and after sprouting they have activated enzymes which make them a lot more nutritous than the mature plant. It's a small window with sprouts, usually about until they get their first real leaves, as opposed to the bud leaves.

    Personally, I think they should make an executive decision that YES INDEEDY (that's my official vote anyway) we as humans are going to colonise mars, and that will entail dragging our crops with us, so they should just go ahead and start terraforming now by introducing the simpler plants in the hopes they might adapt. I know that is controversial, but that's the only thing rational if you are serious about colonization at any time in the future. No sense wasting time then if you choose "yes". Robot probes could be the advanced gardeners, even if all they did was set up greenhouses and get a few of the simpler crops up and growing before the humans showed up.

    When previous historical explorers traveled, they took the means to self perpetuate their food supply, they took seeds and livestock with them. They didn't know what would be "out there" so they couldn't take a chance on a very long and hazardous journey and then get stuck with no food eventually. they did the only thing logical at the time, they traveled with a "farm in a box". If they had had the ability to send that "farm in a box" stuff FIRST, ahead of their voyages,they would have done so. We can do that now with the next stage of human exploration, so, IMO, we probably should.

    Yes, aware of the risks of "contamination". I don't consider it contamination, I consider it rational cultivation. I don't want Mars and exploration to be limited to a few academic hands off pursuits,look but no touch action in other words, I want it eventually open for joe human to go there and live if he chooses to. Open source colonization, not closed source propietary.

    That will obviously mean then that we will be haulin

  19. Re:I wonder... by gobbo · · Score: 3, Insightful
    You can eat it too. Also, all the generations and careful breeding practices would make it ideal for indoor hydroponic growing in spaceships/domes etc. But does it produce worthwhile atmospheric regulation per foot compared to the candidates they are now studying?

    Guess you've never seen or smelled it growing over time. It is a very fast growing plant (especially the far northern varieties) that rather obviously affects the air, far more than any other greenhouse plant I've seen, not just in pungent aroma. (Hey, I used to live in BC, and know plenty of farmers of various specialties, including industrial hemp, ahem.)

    The seed is very high in proteins, tasty and nutty--you can buy these at some health food stores as nut butters etc. (local restrictions may apply!). The varieties grown as food/air/fibre crops are not THC laden and some are very short, like their sister varieties grown for stealth hydroponic operations. So despite political opposition to the plant, and the resulting unlikeliness of adequate research on its atmospheric regulation abilities, it isn't such a far-fetched idea.

  20. Re:Plants on Mars itself? by heli0 · · Score: 3, Informative
    http://archives.cnn.com/2001/TECH/space/06/04/mars .jellyplants/

    Terrestrial scientists planning to sprout genetically altered weeds on Mars hope to take part in a $300 million mission to the red planet that could pave the way for human colonization.

    "It will be a symbolic step of life from Earth, leaving Earth, and growing somewhere else," said Chris McKay, a NASA scientist involved in Mars missions.

    "I have no doubt that we can get plants to survive on Mars," said Rob Ferl, a University of Florida scientist who is trying to reserve a spot for the experiment on the proposed 2007 mission.

    A common weed along roadsides and trails, the Arabidopsis plant was selected for the project because of its short life cycle, about 5 weeks, its diminutive size, about 7 inches, and because its entire genetic structure has been mapped and sequenced.

    If the lowly weed succeeds in its lofty task, the researchers hope it sparks more scientific interest in the possibility of "terraforming" Mars, or engineering its ecosystems to make them more suitable for Earth life.

    Such tinkering would likely be required to produce oxygen, food and water for human transplants, as the cost of sending such essentials from Earth would be prohibitive.

    "I have no doubt what we can get plants to survive on Mars. When we do, we will have shown that Earth-evolved life is capable of thriving in distant worlds, and we will have set the stage for human colonization," Ferl said.
    --
    Whenever the offence inspires less horror than the punishment, the rigour of penal law is obliged to give way...
  21. Re:Private Jets? Rock stars? by C60 · · Score: 3, Interesting
    According to the princeton review...

    # of people in profession: 200
    Average hours per week: 65
    Average starting salary: $60,000
    Average salary after 5 years: N/A
    Average salary after 10 to 15 years: N/A

    In my experience "N/A" usually means "An embarassingly large amount"

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