What would be the best resorce to get water on Mars?
968424
divert a huge Ice Comet into the planet?\n\nOr truck a metric butt-ton of hydrogen and oxygen there (frozen of course to bring the most amount in the smallest space) and burn the hydrogen with the oxygen to create seas of nice H20
954398
you could do a project of 'rain harvesting'\nconstruct a house,surrounded by a small canal -shaped tank which can hold water when it rains use this water (after purification)for various odd uses.\nit works if you use small plastic tubes as canals\n    OR\n a sugarcane industry is a very good idea(i got a prize for this.)\nbut you need to make crusher,purifier,separator,and drier made of steel or iron.
213682
The main problem with mars is not thelack of air, but the local gravity's inability to hold much air on the planet- as such you need a heavy gas to be able to be held by the gravity longer. One idea would be to send rockets full of old cfc containers on a collision course to mars, the release of the cfc's would cause a partial runaway greenhouse effect thht would begin to warm the planet over decades.\nAlso, ice comets can be used on aerobraking orbitals to slowly melt in the atmosphere, thus watering the planet and warming the air by the aerobraking.\nThe temperature differentials are due to the very thin atmosphere and would become less extreme with a thicker blanket of air.\nAnother option would be to genetically modify algae and lichen to live in the high UV and co2 rich atmosphere and crack the co2 into oxygen, while leaving the carbon as a slurry-type layer that can be refined for use in building materials\nThere is lots of potential - all that really remains is to define the technology level and then go for it -  imagination is a wonderful thing - we need to use more of it
685026
u also need to create a biosphere,,self contained sealed enviroment that has oxygen producing plants and also plants for food,and a filtering system for water. and a waste mangement system all self contained. and a communications system back to earth.
828326
scientists believe there may be life on Mars because Mars have water in its atmosphere. It may only be a small amount, but could provide life to certain living organisms that need very little water
641831
Mars is not hot. It's pretty cold. The average surface temperature is -8°C. In best conditions, it takes about a month to get there. The trip would be on a spaceship and you'd be PARTYING!
242248
Evaporation from the sea. Dig shallow pools and with bis leaves collect the moist. You can also get salt this way. Also collect the water from the rain.
1143471
In my astronomy 310 class we discussed missions to Mars, and my professor explained that it COULD be done in a couple years - if there was public interest in it. Since there isn't, and since probes to Mars have been relatively unexciting other than telling us that it used to have water on it before it all evaporated, not many people are too interested in going to a super-hot, rusty, dead planet.
567867
Rent a big bus, drive them to Mars, drop them off and \ncome back.  There will be plenty more to take their place...
208038
You can use R.O. (Reverse Osmosis) filters.\nThe last filter diameter should be smaller than 0.0001 micron so that stuffs like sugar, herbicide, pesticide,\nsalt, sugar, metal ion cannot get through. \nYou will get purist and healthy water.
446824
You would need an enormous source of hydrogen, to make the reaction self sustained. That would mean a lot of water and electricity.\n\nMy idea to solve for excess CO2 would be to genetically modify algae so that they can live on Mars or Venus.
1069293
Flying a balloon on Mars is not easy. The ground-level atmosphere is (I believe) 1/140 times as dense as ours, and even with 1/3 of the gravity, it may be equivalent to flying a balloon at 25,000 meters on Earth or at 80,000 feet. It can be done, but takes a big balloon. With the fierce storms of Mars, one also wonders how long such a balloon would last. \n    About the lifting power--it equals to the weight of the displaced atmosphere, minus the weight of the gas inside the balloon, required to keep it inflated. Whether that is hydrogen or helium should make little difference, because either gas weighs much less than the air (or on Mars, carbon dioxide) which is displaces. Hydrogen should be available on Mars, if only a little water can be extracted there, which seems likely. Hydrogen was of course used in all the Zeppelins in WW-I and with proper caution is quite usable. \n\n    Oxygen and nitrogen are rather heavy, cutting the lifting power by a factor of about 4: considering how marginal any balloon is on Mars, they are clearly unsuitable.. \n\n    Scientific high-altitude ballooners on Earth prefer helium because of the way its temperature changes as the balloon rises and the gas inside expands, but on Mars a balloon probably won't rise far. Rubber balloons launched to probe the weather are filled with hydrogen, which is much cheaper: they rise quickly and explode at their maximum altitude, but by then all required data have been transmitted by radio.
1109029
sending a probe to mars\n\nadvanced techniques in heart surgery
433514
Possibly, but i believe venus is a better candidate.  The higher gravity of venus (very earthlike) would allow it to sustain an atmosphere like ours if we can solve 2 other problems...more solar radiation, and a retrograde day that is months long.\n\nThe L.O.V.E. project (Life On Venus Enhancement) I made this up when i was a kid:  solution 1 - put lightweight, but very large reflectors into orbit around venus, on the day side they will block light in a 24 hour pattern, on the night side they will provide sunlight in the same pattern.\n\nsolution 2 - release into orbit around venus a cloud of particles to reduce the solar radiation and also use the reflectors/shades described above.\n\nAs the temperatures approach earthlike conditions, introduce water (capture a comet probably, or change it's orbit subtly to get it to venus.)\n\nIt's possible there is substantial water on venus tied up in some chemical situation or another, we don't know enough about it.\n\nand btw, for the other answers claiming mars is too hot, um, no?
307624
i think the best water aborsbing material is silica gel
713689
Yes, we have the technology to do this now.  What's holding us back is the cost, not the tech.\n\nThe trip would be about six months each way using the engines we have now and gravity assists where possible.  The most likely scenario would be to first launch a series of un-manned "provision" ships to land on Mars or perhaps orbit it -- these would contain food, water, and fuel.  Once we had verified that they were safely at their destination, we would launch the manned ship -- which would carry enough provisions for a one-way trip, and upon arrival at Mars re-stock from the earlier unmanned ships and then return to Earth.  \nWe *could* fully provision a ship for a round-trip, but doing so makes the manned craft much larger and expensive, and lacks the backup of additional supplies existing at the destination.\n\nAll of this is already on NASA's drawing boards, though whether it will ever happen or not is completely a matter of $$ :)
985052
Tap water.\nSoap breaks down the surface tension.