What kinds of buildings would there be on a mission to Mars? Would we use an inflateable building or take natural shelter inside of a hole/cave and put up a barrier in the front to seal out everything else?
123954
The biggest issue will be protection from cosmic rays and inflatable buildings are not likely to provide that.\n\nThe following Scientific American article from March 2006 on "Shielding Space Travelers" talks about the cosmic rays.\nhttp://www.sciam.com/article.cfm?chanID=sa006&colID=1&articleID=000D6A37-E75F-13F5-A75F83414B7FFE9F\n\nIn it, they note that a common misconception is that Earth's magnetic field provides most of the shielding from cosmic rays for life on Earth.  Instead, it is Earth's atmosphere that provides the majority of protection.\n\nGiven that Mars' atmosphere is only 1/10 that of Earth's and Mars lacks an apprecial magnetic field, cosmic radiation would be rather problematic for any settlements on Mars.  So most buildings will probably be best constructed underground.\n\nAnd, of course, you'd also need shelter to protect you from the occasionable dust storm, contain a breathable atmosphere, and maintain a warm, hospitable environment.
87867
One problem, insurmountable so far, is how to protect astronauts from cosmic radiation on long journeys. People on earth are protected from cosmic rays by the atmosphere, but in space, prohibitively heavy protection would be needed even on so short a journey as to Mars. The problem remains unsolved.
204206
The polar ice caps on Mars aren't water ice.  They are carbon dioxide ice (also known as dry ice).\n\nThe site selection for where they land the probes are based on a number of parameters, including the amount of open area and interesting geological formations in the region that they'd like to take a closer look at.\n\nIn the Rover's case, one of the parameters was spectrographic and IR telemetry readings that suggested the presence of some compounds that normally form in water, and physical features that appeared to be created by water erosion, so that was determined to be an ideal place to look for the presence of water on or below the surface.
359610
IF... and that's a HUGE IF... there are structures or pyramids on Mars, the only explanation would be that some sort of civilization erected those structures.\n\nIn other words, ALIENS.
144781
If Mars still has a molten core and there are small vents in deep caves, there could possibly be a 'biosphere' or place that life can live. It would look like cave bugs probably. Im assuming there wasnt enough time for things to learn how to fly and that pools of liquid large enough to support populations of fish-things arent around. Who knows? Maybe its little fuzzy slime-molds that move like inch-worms?
378379
We could terraform Mars and probably Venus and make them liveable if we really wanted to.  And, we could set up colonies and humans could live there and raise families.  However, if you're talking about mass emigration, e.g. the relocation of humans to another planet, that's a completely different question.  \n\nThink about this.  The largest ocean vessels we can build today are the Nimitz-class aircraft carriers.  They carry a crew of 5000.  Without the aircraft and supplies, they could carry 10,000 to 12,000.  \n\nLet's assume that we could build a space craft capable of moving 10,000 people from Earth to Mars and that we have 1000 of them.   And, let's assume that it takes a month to make the round trip.\n\n1,000 ships x 10,000 people x 12 months = 120 million people per year.\n\nThere are 6.6 billion people on Earth.\n\n6.6 billion / 120 million = 55 years\n\nSo, it would take 55 years to move our population to Mars.  It just isn't feasible to move humans elsewhere on an emergency basis as you suggested.  Think how much fighting there would be to get on one the ships.\n\nWe would need a number of very advanced technological breakthroughs to make it happen.  Examples: room-temperature superconductors, propellant-less (gravitic?) propulsion.\n\nIf you are on Earth when the giant comet or asteroid hits, you're just doomed.  Colonies on other planets would be our insurance policy against loss of our species, but not the loss of our individual lives.
4088
You could use a catalyst to turn CO2 into a oxygenate.\n\nPlants would be the most efficient and cheapest way possible as far as I know. But plants won't just grow on mars, you would need to make the conditions suitable for plant life to survive. I think they were talking about man-made global warming to increase the atmosphere and warm it up for possible teraforming. \n\nAlso, there is water on mars already and why would you want it to rain carbon?
295580
>>> Once the earth is over populated..\n\nThe Earth is never going to be overpopulated. The population is already stabilising and will begin to decline with your lifetime.\n\n>>>>>Are there evidences which can proove that\n>>>> humans can live on mars?\n\nNot a chance ATM. People can only barely live in Antarctica, and that is a place with fairly breathable atmosphere, mild temperatures and resupply possible for 6 months of every year. But life in Antarctica is still a struggle.\n\nMars makes Antarctica look like the Bahamas. Even the warmer parts of Mars are colder in mid-summer than an Antarctic winter. The atmosphere is unbreathable and we couldn't afford to re-supply more than once every three or four years. The absolute best we could hope for a few years for an exploration/research team to stay there.\n\n\n>>>>Research shws that theres life signal on mars..\n\nNo, it doesn't. Some very hopeful people and some people chasing funding have tried to spin it that way. There is absolutely no evidence that Mars has ever had life.\n\n>>>>if there is life on mars then human also \n>>> possible to live on mars.\n\nNo, it doesn't work that way. There is life at the bottom of the ocean too, and life in the interior mountains of Antarctica, and life 5 miles below the ground in solid rock. Humans can not possibly live in any of those places.\n\nThe simple presence of life does not mean that humans can survive in a location.
61981
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.
601218
It most likely will never melt, as Mars is far from the Sun. If it does, it might not last long, as it has no atmoshpere and a weak gravitational pull.
591423
Sounds like you already know the answer to your own question...:)  Bottom line:  there is considerable evidence that there was once at least simple life on Mars.  There is some evidence that there may be simple life there now.  There isn't conclusive evidence of either of those things...so if we want to know, we need to keep exploring!
374358
Rotation around an asteroid would be pretty tricky, since their mass is low. \n\nCeres would be the best place to start. It kinda has gravity. (And actually, I'd just build my base on there, and not deal with a toroidal structure). The gravity is low enough so that "blast offs" would use very little fuel, but you would still have the stability of a rock. \n\nIf you chose to build the space station in that quadrant, you'd have a firm base on Ceres. (Phobos or Demos wouldn't be bad either --- but Mars is too much of a gravity well.)\n\nThe simple fact is that you will have to assemble it in space, no matter where you fabricate the elements of the structure. Good luck, and keep me informed on your progress. I always wanted to run a pub on Ceres...
40465
You are reffering to the Mars Exploration Rovers.  There is also a probe on it's way to Mars to see if it had any long standing bodies of water.
279846
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!
455464
I think you pose a very insightful and valid question. I've wondered this same thing myself and dreamed about the day we can created a structure like the one you describe.\n\nHowever, to create a rotating torus large enough to mimic earth's gravity would be unfeasable with the enormous cost right now to build in space. Plus, the way the space station is built puts almost no stress on the station. If the station were rotating it would have to constantly withstand the forces of "gravity".
2640
You could make a cloud chamber. It's a chamber that's saturated with alcohol vapor so when a cosmic ray or radioactive particle enters the chamber it leaves a trail of mist like when a plane leaves a vapor trail. It does use dry ice and isopropyl alcohol though. It's kind of complicated but would be worth it in the end. You might even win depending on the competition.
611089
According to current accepted beliefs, there is no people in Mars, although there has been fossils of single celled organism.\n\nWe should stick to this, until we found any further information about living things in Mars.