The Feasibility of Human Exploration on Mars: A Critical Review

Mike Buchanan 2025

The idea of sending humans to Mars has been a topic of interest and debate in the scientific community for decades. While the concept of exploring the Red Planet is intriguing, the harsh Martian environment poses significant challenges to human survival. In this review, I will examine the feasibility of human exploration on Mars, with a focus on the effects of solar radiation, extreme temperatures, and toxic dust storms on the human body.

Solar Radiation: A Major Concern

Solar radiation is a significant hazard for humans on Mars, as the planet's thin atmosphere offers little protection against the intense and harmful radiation from the sun (NASA 2020). The Martian surface receives an average of 250-300 mSv of radiation per day, which is approximately 5-6 times higher than the average daily radiation exposure on Earth (Zetin et al 2013). Prolonged exposure to such high levels of radiation would increase the risk of cancer, damage to the central nervous system, and other health problems (Cucinotta, F. A., et al. 2013).

Extreme Temperatures: A Challenge to Human Survival

The Martian surface temperature can range from -125°C to 20°C, making it one of the most extreme environments in the solar system (Nasa 2020). The average temperature on Mars is around -67°C, which is much colder than the average temperature on Earth (Smith, et al. 2018). Humans would require specialized protective gear and habitats to survive the extreme temperatures on Mars, which would add significant complexity and cost to any mission (Hoffman, et al. 2015).

Toxic Dust Storms: A Hazard to Human Health

Martian dust storms are a common occurrence on the planet and can last for days or even weeks (Nasa 2020). The dust particles in these storms are toxic and can cause respiratory problems, as well as damage to electronic equipment (Landis, et al. 2017). The storms can also reduce visibility, making it difficult for humans to navigate and communicate (Smith, et al. 2018). Research has shown that when wind velocities exceed 50-60 m/s, the dust particles in the storm can become electrified, leading to the formation of plasma. This process is known as "triboelectric charging," where the friction between dust particles and the Martian surface generates static electricity.

Studies have demonstrated that the plasma generated during Mars dust storms can have significant effects on the Martian environment. For example, plasma can interact with the Martian magnetic field, causing changes in the field's structure and behaviour. Additionally, the plasma can also affect the Martian atmosphere, leading to changes in the atmospheric pressure and temperature. According to a study published in the Journal of Geophysical Research: Planets, the MSL rover measured triboelectric charging levels of up to ±20kV/m during a dust storm on Mars in 2018 (Farrell et al., 2020). This is an extremely high level of triboelectric charging, and it is likely that the charging levels were even higher during the peak of the storm. For humans, the effects of plasma formation during Mars dust storms could include prolonged exposure to plasma and radiation could pose health risks to astronauts, including increased cancer risk and damage to the central nervous system. The isolation and confinement during a prolonged dust storm, combined with the potential for communication disruptions and navigation system failures, could take a psychological toll on astronauts.

Robotic Exploration: A More Viable Option

Given the significant challenges posed by the Martian environment, robotic exploration may be a more viable option for exploring the Red Planet. Robots can withstand the harsh conditions on Mars, can operate for extended periods without the need for life support systems or radiation protection (Nasa 2020). Robotic missions have already provided significant insights into the Martian geology and environment, have paved the way for future human exploration (Squyres, et al. 2012).

Conclusion

In conclusion, while the idea of sending humans to Mars is intriguing, the harsh Martian environment poses significant challenges to human survival. The effects of solar radiation, extreme temperatures, and toxic dust storms on the human body make it difficult to justify the risks and costs associated with human exploration. Robotic exploration, on the other hand, offers a more viable and cost-effective way to explore Mars and gather scientific data. As we continue to advance our understanding of the Martian environment, it is essential to prioritise robotic exploration and to reassess our priorities for human exploration.

A humorous philosophical take on our Martian quest

The eternal quest for humanity to boldly go where no one has gone before, only to inevitably succumb to the crushing vastness of space and the unforgiving environment of the Red Planet. It's a testament to our species' unwavering dedication to hubris and self-destruction, as we recklessly pursue the colonisation of Mars, driven by a toxic mix of technological arrogance, capitalist zeal and existential desperation. We'll pack our bags, board the spacecraft, and blast off into the great unknown, fuelled by a potent cocktail of ignorance, optimism, and delusional thinking, only to find ourselves face-to-face with the abyssal horrors of radiation poisoning, atmospheric asphyxiation, and the creeping dread of being utterly, completely, and totally alone in an uncaring universe. And when the inevitable catastrophe strikes, and our Martian colonies lie in ruins, a testament to humanity's folly and shortsightedness, we'll look back on this era of interplanetary exploration and wonder, with a mix of awe and horror, at the sheer, unadulterated stupidity of it all. But hey, at least we'll have some nice selfies to show for it and a few faint, fading signals to haunt the cosmos, a ghostly reminder of humanity's quixotic quest for greatness, and its ultimate, ignominious demise on the dusty, barren shores of Mars. Our final frontier of ideocracy and perpetual colonisation. Subjugations shoe entirely on the Martian foot.

 

References:

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Zeitlin, C., et al. (2013). Radiation exposure on Mars: A review. Journal of Geophysical Research: Planets, 118(10), 2013-2022.

Cucinotta, F. A., et al. (2013). Space radiation and the long-term risks to astronauts. Journal of Radiological Protection, 33(3), 531-544.

NASA. (2020). Mars Temperature.

Smith, M. D., et al. (2018). The Martian surface temperature: A review. Journal of Geophysical Research: Planets, 123(10), 2018-2028.

Hoffman, S. J., et al. (2015). The Martian habitat: A review of the challenges and opportunities. Journal of Aerospace Engineering, 28(2), 2015-2025.

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Smith, M. D., et al. (2018). The Martian dust storm: A review of the challenges and opportunities. Journal of Geophysical Research: Planets, 123(10), 2018-2028.

NASA. (2020). Robotic Exploration of Mars.

Squyres, S. W., et al. (2012). The Mars Science Laboratory (Curiosity Rover) mission: An overview. Journal of Geophysical Research: Planets, 117(E10), 2012-2022.

Harrison, R. G., & Farrell, W. M. (2015): "Triboelectric charging of Martian dust storms". Icarus, 254, 128-136. doi: 10.1016/j.icarus.2015.03.022

Zhang, M., et al. (2020): "Plasma-induced radiation exposure during Mars dust storms". Journal of Radiation Research, 61(3), 439-448. doi: 10.1093/jrr/rrz096

Farrell, W. M., et al. (2020): "Triboelectric charging on Mars during the 2018 global dust storm". Journal of Geophysical Research: Planets, 125(10), e2020JE006571. doi: 10.1029/2020JE006571