Through literature and film, people have expressed their urge to explore and colonize other planets. Many science fiction films, such as Star Wars, push our imagination by depicting a world where interplanetary travel is a commodity. As fun as it is to imagine our species living on other planets, reality must set in and remind us that creative works were not designed to be a goal for us to attain; for, over the years, we have also seen films retelling past events, even some of science fiction, that illustrate how fragile humans are when they exit the atmosphere. Some that come to mind are Apollo 13, First Man, The Martian, and Interstellar. Movies like these show us how limited we are when it comes to space travel, but have also, awakened our imagination and led many aerospace engineers and astrophysicists around the world to feed fuel to the ever-growing fire of a Martian colony. Unfortunately, we should restrict our ambition to merely visiting the Red Planet just as we did for the Moon. When we look at the number of factors opposing a human civilization on the Red Planet, it becomes clear that we shouldn’t attempt to achieve the infeasible act of colonizing Mars. These factors include financial issues, as well as dangerous psychological and physical effects of living on Mars; all of which will be discussed in depth throughout this article.
How We Get There and the Money Needed for It
Before diving into the science behind why we can’t live on Mars, we should look at the financial feasibility of colonizing Mars. Until January this year, one of the most popular players in the “Race to Mars” was the Dutch founded, semi non-profit company, known as Mars One, who planned on having the first crew of astronauts arrive to establish a permanent residence, in 2032 (Mars One). Their budget predicted 6 billion US dollars to have their first crew of only four astronauts land. They also predicted subsequent manned missions would cost 2 billion US dollars as well as other expenses to send regular shipments containing supplies for the colonizers. To put this into perspective, on average each Summer Olympic Games costs $5.2 billion US (Cost of Olympics). This budget has been heavily criticized and there is evidence suggesting that it will cost much more than the price of an Olympic Games to send people 54.6 km away and have them live there permanently. Due to the unrealistic nature of Mars One’s mission, their funding drew short earlier this year and the company has officially been declared bankrupt, lending evidence to the case against the colonization of Mars. If a company requiring such a low amount of financing cannot obtain the funds, then who can?
This brings us to NASA, a government funded agency that is a major player in the “Race to Mars.” Although the predicted budget of expenses for a mission to Mars varies, in 2018, NASA estimated that it would cost them “tens of billions” (Berger) to bring men to Mars, let alone live there, and many predict it may cost over $100 billion US. Again, to put the price into perspective, the cost of building a wall across the southern US boarder has been determined to be just over 10 billion and was not approved by Congress, more because of political reasons though. In 2015, the agency devised an unofficial plan of having human settlement on Mars that would be broken down into three phases. The first would be limited to more time spent in the ISS, which is short for, International Space Station, to provide further testing on living in space. The second is called the “Proving Ground,” which would test living and travelling in space using Earth resources, and the last, called, “Earth Independent,” would not involve resources from Earth, but would include the “harvesting of Martian resources for fuel, and building material” (Human Mission to Mars). All this would take place over many decades and would require lots of funding which the government is not prepared for, especially since there is no “need” to get to Mars like there was to get to the Moon in the sixties. Although Donald Trump’s budget for the 2020 fiscal year has increased from allotting 20.7 to 21.5 billion to NASA, only 109 million of that is aimed to be spent on future Mars activity. Before we can get to Mars, there are still significant milestones that must take place. For example, an unmanned Mars mission that returns with soil samples is vital, but costly. Just simply getting to Mars and landing on the planet should prove to be costly enough, so imagine how ridiculous the amount of money required to sufficiently fund all the various phases of the project would be.
Right now, the most affordable way of arriving to Mars appears to lie in the private sector, specifically, in SpaceX, who has engineer and entrepreneur, Elon Musk, at the helm. Musk believes that the most cost-effective way of colonizing Mars would be to recycle whatever rockets we use to get there. His goal is to establish a fueling station on the Moon so that transportation between Earth and the colony can be practical as well as affordable. Last year, he showed the world that it is possible to reuse rockets when the engine cores carrying the Falcon Heavy into space successfully landed on Earth. However, there is still much doubt in whether he will be able to repeat the process on foreign soil, where dust storms and different climates will make it much harder to land. And so, until further testing has been completed, the financial issues are still present.
Our Bodies Can’t Handle the Red Planet
Putting monetary constraints aside, the human body cannot physically function on Mars.
The first major issue is that Mars, unlike Earth, has no protection against radiation. In space, there are many cosmic rays made of high energy atomic particles that shoot all over the place from exploding celestial bodies. These rays can cause all sorts of health effects, such as severely impaired vision, damaged DNA, damaged nervous system, and even cancer (Kim, Gene, et al.). On Earth, we are immune to the radiation because our atmosphere absorbs the majority of the rays, additionally, Earth’s magnetic field deflects most of the radiation. Mars on the other hand, no longer has a major global magnetic field and its atmosphere is too thin to repel radiation. Furthermore, a voyage to and from Mars alone would result in a radiation exposure of 0.66 Sv which is near the maximum 2 Sv radiation some astronauts attain while on six-month trips at the ISS (Spaceflight Radiation Carc.). Since the risk of cancer can begin to rise at 0.05 Sv, it would be highly dangerous for the human body to remain on a planet with next to no radiation protection for a long period of time. Although scientists have come up with ways to partially protect against the extreme radiation, there are still many unknowns when being exposed to such high levels of radiation that we have yet to uncover (Scott).
The next issue to examine is Mars’ atmospheric composition, which is approximately 95% carbon dioxide, 3% nitrogen, 1.6% argon, and less than 0.4% oxygen. This is very problematic because it results in a very thin atmosphere. With a thin atmosphere, the temperature fluctuates quite a bit. “Between day and night, it can vary within 70°C” (Colonization of Mars), making it hard to set up a colony using materials resistant to both climates. Additionally, the low levels of oxygen make it so that we wouldn’t be able to breathe freely outside. This would require for every habitat to be air tight and perfectly sealed, which will be difficult to maintain since there are very powerful dust storms on Mars. Lastly, the low atmospheric pressure would cause our heads to explode and our eyes to bulge out like in 1990’s, Total Recall, where Arnold Schwarzenegger’s character dies within seconds of exposure to Martian air.
Another major problem with living on Mars is the effects of a lower force of gravity. Because Mars is smaller than Earth, its force of gravity is about 38% of what we experience on Earth. Prolonged living in such an environment would result in osteoporosis (bones become brittle), muscle atrophy (weakening muscles from lack of movement) and dangerous effects to the cardiovascular system (Marwaha). These effects will prove to be challenging to deal with on Mars, but also, if they were too return to Earth, their bodies wouldn’t survive because they would have adapted to Martian conditions. When astronauts return from the ISS after several months in space, they have difficulty walking and require aid upon landing, so that effect would be intensified by a much larger degree after living on Mars.
One of the simplest factors affecting the possibility of colonizing Mars, is the fact that Martian soil is toxic. Because many UV rays hit the ground of Mars, the large quantity of perchlorates in the soil become highly reactive. Perchlorates are very toxic and able to elevate blood pressure, cause lung lesions, and shut down the thyroid gland (Blair); all devastating effects on a living being, especially on Mars, where medical help would be very limited. The perchlorates would be unavoidable because the dust would get everywhere and would eventually come into contact with us even within the confines of our habitats.
What Living on Mars Really Entails
In addition to physical effects on the human body, the social and psychological issues associated with living within an isolated habitat are very dangerous for humans. As a species, we are used to living in large spaces with a plethora of things to do and places to visit. Studies have been performed in the past that have examined the effects of sharing a confined environment with people, most notably in Antarctica (Lackey). Living in encapsulated habitats on Mars entails a similar social setting as it does in Antarctica and has led many to compare the two living conditions in a psychological context. The conditions involve interacting with the same set of people for a long period of time without the ability to interact with the outside world or take a break from those around them. The idea proposed by Mars One to have people on the Red Planet for the rest of their lives just simply wouldn’t work; people would get upset, cranky and eventually end up hurting each other. This was best seen recently, in Antarctica, when a pair of Russians scientists had to end their research early because one of them had stabbed his colleague after he had spoiled the ending of the stabber’s book. Seeing that Martian living conditions would be just as restrictive if not more restrictive than those in Antarctica, it is likely that the colonists’ moral would be very low, which would inevitably lead to a miserable and unpleasant life, making the goal of having a colony on Mars next to pointless.
Humanity’s Future with Mars
After looking at financial, physical, and psychological factors concerning the feasibility of colonizing Mars, it is clear that our society is far from making it happen any time soon. As it stands, there are many obstacles that need to be overcome for us to even consider going to Mars. Just as it took humans years to land on the Moon, it will take us years before we land on Mars. It will be difficult to land on Mars, but it will eventually happen; unfortunately, the establishment of a civilization on Mars is likely to never happen, regardless of how much Elon Musk claims we are meant to be an interplanetary species. His goal of having a fueling station on the Moon, and a colony on Mars may never become a reality, but it is still important that we continue aspiring to “explore strange new worlds” as Captain Kirk says in the opening monologue of every Star Trek episode. We should look to the Moon landing as inspiration to revolutionize our ambition to discover what lies out there. Even though we never established a base on the Moon, lots of valuable information regarding the universe was obtained from the moon landing missions. This should give us enough of an incentive to try our best to reach our neighboring planet. Perhaps if we were to shift the goal from colonizing Mars, to simply visiting and exploring Mars, we’d be able to get there faster.
Works Cited
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