As our world begins to grow and develop, our dependency for land and resources is increasing. We are coming close to consuming all of the earth’s surface and fossil fuels and now need to expand beyond the boundaries of this planet, into outer space where we can establish settlements and salvage resources.
Taking the time and money to invest in a program and develop settlements in outer space contains many benefits that will help our world, along with the people in it. According to “Space Settlements of Tomorrow”, “The world’s population is doubling every thirty-five years, our own planet is becoming over-crowded and suffering increasingly from the effects of pollution and its renewable energy resources will eventually run out.” Fortunately for us we have possible means to solve this crisis. These means consist of expanding our living boundaries beyond our Earth and into space and onto other planets. Mars is a perfect example because it contains resources that are able to support life forms such as humans. Hydrogen, oxygen and water are a few examples resources that Mars holds for us to use and live off of. Although, they are not usually found in a usable form. Water, for example, is an abundant resource found all over the surface of Mars in the form of ice and permafrost. In fact, it is so abundant that if Mars were smooth and all ice and permafrost melted into liquid water, the entire planet would be covered with an ocean over 100 meters deep (Zubrin). Unfortunately, the water is frozen, meaning that settlers would have to melt it before it could be used for growing plants or drinking water.
Not all of our reasons for expanding into space are due to over population. Another motive is because humans are draining the naturally resources found on our planet Earth. We are a growing species, and need these resources to support this growth. In order to do so, we need to explore other planets to find hot spots that can be mined for valuable resources, which we can use to form a trade between the colony and Earth. Places like the Moon and the main asteroid belt hold large amounts of the element Helium-3, which can be refined and possibly used as an alternative energy resource in thermonuclear reactors. Considering our situation here on Earth with rapidly increasing gasoline prices, the concept of an alternative energy source completely separated from crude oil is incredibly appealing. Along with this idea of finding an alternative energy source, comes inventions and trade. For instance, certain alloy can be produced in space because some metals do not mix successfully in the presence of gravity (Space Settlements of Tomorrow). There have been some alloys and special types of glasses that have already been produced that are not accessible on earth. By trading with Earth, space colonies can profit from these kinds of inventions because of supply and demand.
As we can see, taking the time to explore and harness the different parts of our solar system contains many benefits and rewards for us as humans. Of course, it is not that easy. There are many difficulties that hinder the process of getting up into and maintaining life in outer space. During the previous Apollo missions to the moon, NASA encountered a problem that they were unprepared for. This problem was Moon dust. Unfortunately for NASA, there was no way to avoid it at the time. This jagged, incredibly clingy substance that covered the entire surface of the Moon could be compared to powdered glass (Christe). “Quickly jams spacesuit joints, clogs air filters and chokes radiators, causing the batteries of moon rovers to overheat”. Essentially, Moon dust was like a plague that swept over all the equipment and eventually working its way into the lungs of the astronauts. Simple dangers like this, which have the potential to endanger an entire mission, could come in many different forms. Making the planning of the trip incredibly difficult as well as putting fear in the minds of the astronauts.
Companies like Hilton have wished for and even designed, a tourist hotel for individuals who have the desire to vacation on the moon. Unfortunately, ideas such as this have not been completed due to expensive, inefficient and unreliable sources of transportation (Thornton). This hotel would be big enough to fit 100 guests in a glass dome with pressurized rooms. In order to maintain this hotel, keeping it supplied with food and oxygen, an incredibly large amount of launches would be needed. But with our current form of transportation being SSTO (Single Stage To Orbit) vehicles, the amount of mass that is required to be lifted compared to the amount of force needed to lift it is too high to be done frequently.