<p><BR/>Replying to:<BR/><DIV CLASS='Discussion_PostQuote'>I don't see it as an either or choice. I see the colonisation of space as the goal of the human race, and experimenting with reasonable scale experiments of human bases in certain traditionally inhospitable locations on earth as a very important step towards that goal. More important than rocket research for example.Three examples of inhospitable locations are: deserts, very cold regions, and the ocean floor.A city in the desert (perhaps some sort of las vegas) that for example domed and recycled all its water would be a very interesting experiment. Getting rid of heat is harder than keeping it in though and I dont think deserts are similar to any locations in the solar system that we would value.Very cold and inaccessable locations could be interesting. Build large enclosed greenhouses. Get as close to zero impact as we can. There is a lot of overlap between the goals of zero impact and the goals of efficient long term lifesupport. I also think these could be great tourist attractions. Although that would limit some of the scientific value there would still be much worthwhile learnt in managing such a city.Cities underwater would be interesting for two reasons: (1) it is an environment separated from the outside by airlocks and where air is not free, and (2) I think that if we colonise the solar system the majority of us will be living deep under the ice in oases of water kept liquid by our own waste heat. In these locations we have earthlike temperatures and pressures, robust protection from radiation and depressurisation, and large bodies of water for cooling and within which to grow food. <br />Posted by kelvinzero</DIV></p><p>The only real problem is not getting off of the planet and colonizing Mars and the Moon, which we do have the capability to do. Is is because of the human male and female ego of not watning any one to be "higher" then they are. It boils down to selfish childish notions that in a capitalistic society someone who has more and is of "higher" status then someone else would not like the attention they receive that makes them money to be drawn away to an age of space exploration where there are numerous potentials for profits. But because it would cost to much to design a craft that would be able to mine the rings around the planets in this solar system and would not create fast cash for them to live like kings and queens in their own delusionaly wrought story is the main reason. A second reason is "it sounds to much like work." This is also another problem, humanity has grown fat and lazy in the exploration field. Without continued exploration, ideas will continue to seem "new' but will be just another version of the same old product drawn differently and packaged with different lighting.<br /></p>