If Mars has been found to have had water?
156605
There are polar caps on Mars that vary with the season. These are composed of ice, and dry ice (solid CO2). The Martian atmosphere is about 3% water vapor, which is the most water vapor that it can hold at its temperature and pressure, so it has a high relative humidity. We believe that Mars has permafrost under the surface. There appear to be runoff channels from water in some places on the Martian surface. \n\nIf there ever was a civilization on Mars, they did not leave much in the way of clues or ruins, or at least they have not been found yet, and I suspect they will not be.
105872
Actually Rolling Stones Magazine just wrote an article on tthis.  I'd go to your library and read it because it was really interesting.  According to the magazine, the Bush administration is trying to send a shuttle to Mars to do some necessary research on the planet to figure out if it is sustainable.  As far as water goes (someone mentioned it before me) they are saying that the astronauts will have some sort of device that turns urine into drinkable water. \n\nThere also saying that it will take 6 months to get to Mars.  Also, if they were to launch several people into space, they wouldn't be able to do it all at once.  Rather, they would launch separate parts and connect in outerspace.\n \nThe article said that they want to send to astronauts out around 2020 to do the initial investigation.\nCheck out the article...its really good.
117863
First, there have been proof of river beds and the like being found when space probes landed there.  Second, there are ice caps seen at the poles, and that's a sign of water as well.  But as for standing water, water that EXISTS right now, there is no sign or proof.  So it may have been there in the past, but not right now...
348137
if theres not i would be extreme surprised.  the universe is so huge that it would be ridiculos to assume or think there isnt.  even though we have only explored probably less then 1% of the universe we have still found planets that we think would be able to suport human life (remember not all life would have to be carbon based like us either) so even if there isnt a planet that we could live on some other type of creature might think its paradise.  the answer to your question is yes there is most likely life other then ours out there somewhere. although it would depend on what you mean by "life" if you mean intelligent life i still think yes there probably is although they have found fossils of bacteria on mars so technically that means there was at one point there was life in our solar system other then earth.
994713
MARS... quite possible
715462
Mars could, since there is carbon there and it's got its own protective layer the only thing left is water.... there is some evidence that mars has got water in it so we could take that risk\n\nanyway if the time comes then we'll probarbly have some way of sombining the hydrogen to the oxygen- making water!
838432
They decided that the evidence was inconclusive - it was possible that it was, but it turned out that it was possible that the sample could have been contaminated or compromised at some stage, or that geological or mineral activity could conceivably have created the same features seen - it seems probable that this is the case. \nSo they can't ever decide whether the rock is actually a fossil of Martian life, but they are absolutely certain that it is not PROOF of Martian life - a disappointing but rigorously scientific conclusion.
590204
Mars would be barren, but it has all kinds of features...\n\n*grabs blue moons to black holes, his sourse of power*\n\nAh!  Here we are!\n\nThe enormous Valles Marineris canyon system runs across half the planet.  Its like the grand canyon almost: a valley that was once beleived to have water flowing through it.\n\nOlympus Mons is the tallest known mountain, classified as a volcano.  It is about 3 times taller than mount everest!!!  However, its 20x wider than it is tall, so it is a fairly gentle walk\n\nId estimate the dry ice caps, made of carbon dioxide, would catch some attention.\n\nDemeos and phobos are so close to the planet, you can see them revolving around the planet 3 times a day.  Its a interesting sight!
915751
It would post probably be sunlight.......some plant organisms may survive without water for long periods of time, such as ones in the desert....... but sunlight is required for green plants to make food  which unlike for humans......... food is the bigger priority than water
148940
I think it would only be possible if there was also lots of water on the planet as well as good solar radiation being close to a star and carbon dioxide. Also it would be helpful if there was nitrogen in the soil since plants absorb nutrients from the soil. There would also need to be rainfall on the planet, but if there wasn't irrigation and watering by caretakers could be sufficient.\n\nAnd what about terraforming? Mars has an atmosphere and I beieve carbon dioxide. Could plants grow on Mars? We'd have to transport millions of gallons of water in our ships and keep the water from sinking deep into the planet. Why would we want to do that? It could cost a trillion dollars. The moon has no atmosphere I'm not sure it could be terraformed. Just a thought.
1101394
They found fossilised bacteria on mars a few years ago, while bacteria may not be intelligent combine that with the fact that the surface of mars look like it once contained water and they think that is may once have been habital. But apart from all that I don't think any scientist actually 'believe' theres any other life out there.
21421
Technically it'd be water. Though i bet on pride :)
643686
It would make water (H2O).
240991
Maybe Atlantis would appear again. Damn u know all these riddles. \nI think there will be alot of water
720417
No, not quite as old as Earth, and definitely not as old as the universe. Water first occurred on Earth not long after it cooled enough for a water-bearing atmosphere to form. That atmosphere and its water content came mainly from volcanic outgassing some 3.5- to 4-billion years ago. Some of Earth's water does escape into space but, as you point out, what we have today is pretty close to what was around billions of years ago. Recycling works!
351260
The discovery of dry riverbeds on Mars means that there was once flowing water on Mars, which is VERY interesting. Not only for knowledge of the past conditions on Mars but because that water may till be there. Recent measurements say there is a lot of frozen water just below the surface.
283632
There is no evidence to show conclusively that life ever existed on Mars, and the lack of evidence strongly suggests there never was life there.  If even bacteria lived there some trace would show up in the fossil record, and so far the probes have found no evidence of this.\n\nIt doesn't mean that there isn't life somewhere on the planet, or that life existed there once upon a time, but it's highly likely that there never all that much life on the planet.  Life tends to spread -- for example, no matter where we look on the Earth, we find some evidence of life, even if only bacteria, even in the frozen arctic or the middle of the sahara desert.\n\nAt the present time humans cannot live on Mars without an artificial environment.  The air pressure is far too low and the atmosphere has far too little oxygen.  The temperature extremes are far worse than even in the Antarctic.  \n\nWhile it is possible to build a "Marsbase" of some kind the difficulty lies in getting all that material over to Mars from Earth and then down from Mars orbit.  It's one thing to drop a probe through the atmosphere and bounce it hopefully somewhere within a 100-mile radius of its intended landing site; it's quite another to have a steady drop of material that all has to land in the same place.\n\nNaturally the builders could make use of local materials.  The main problem is the lack of water, which only seems to exist on the surface at the poles.  Therefore the base would probably have to be located at or near the polar areas of Mars, so that ice could be harvested and used to produce oxygen.