The Martian Census: How Many People (or Aliens) Live on Mars?

Mars has been a subject of fascination for scientists and space enthusiasts for decades. One of the most burning questions about this red planet is whether there are any signs of life, including the existence of intelligent beings. In this blog post, we will explore the current state of knowledge about the population of Mars, from the perspective of scientific research and the imagination of science fiction writers.

Mars: A Brief Overview

Mars is the fourth planet from the sun, and it is often referred to as the “Red Planet” because of its reddish appearance. It is about half the size of Earth and has a much thinner atmosphere, with about 95% of it being composed of carbon dioxide. Mars has two small moons, Phobos and Deimos, which are believed to be captured asteroids.

The possibility of life on Mars has been a topic of interest for decades, and numerous missions have been sent to explore the planet’s surface, geology, and atmospheric conditions. While we have learned a lot about Mars, we are yet to discover concrete evidence of any life form on the planet.

The Current Human Population on Mars

As of now, there are no humans living on Mars. The planet is a barren wasteland with no breathable atmosphere, extreme temperatures, and high levels of radiation. The harsh conditions on Mars make it unsuitable for human habitation. The only presence of humanity on Mars is through the robotic missions conducted by various space agencies, including NASA and SpaceX.

The Possibility of Colonizing Mars

Despite the harsh conditions, scientists and researchers have been studying the possibility of colonizing Mars. They are exploring ways to make Mars a habitable planet for humans. This would involve terraforming the planet, making it more Earth-like in terms of temperature, atmosphere, and radiation levels. While this may sound like a daunting task, it is not impossible.

The Challenges of Colonizing Mars

Colonizing Mars comes with many challenges, some of which are:

1. Distance from Earth

Mars is 140 million miles away from Earth, which means that it takes months to travel there. This distance also poses a challenge for communication, making it difficult to get real-time updates from Mars.

2. Harsh Living Conditions

As mentioned earlier, Mars has extreme living conditions that make it unsuitable for humans. The planet has a thin atmosphere that cannot support life as we know it. The temperature on Mars can drop to -225°F (-143°C), which is way below freezing point. The planet’s high radiation levels also pose a significant health risk to humans.

3. Lack of Resources

Mars has limited resources, and everything that humans would need to survive would have to be transported from Earth. This would require a significant amount of resources and funding, which would be a significant challenge.

The Plan for Colonizing Mars

Despite the challenges, scientists and researchers have proposed a plan for colonizing Mars. This plan involves the following steps:

1. Exploration

The first step in colonizing Mars would be to explore the planet thoroughly. This would involve sending more robotic missions to Mars to study the planet’s terrain, geology, atmosphere, and other factors that are crucial for human habitation.

2. Building Infrastructure

Once enough information has been gathered, the next step would be to build infrastructure on Mars. This would include building habitats, growing crops, and establishing a sustainable source of energy. The infrastructure would have to be designed to withstand the harsh living conditions on Mars.

3. Terraforming

The final step would be to terraform Mars, making it more Earth-like in terms of temperature, atmosphere, and radiation levels. This would involve releasing greenhouse gases into the atmosphere to warm the planet and creating a magnetic field to protect against radiation.


In conclusion, there are currently no humans living on Mars, and the planet’s harsh living conditions make it unsuitable for human habitation. However, with the possibility of terraforming Mars, colonizing the planet is not impossible. While there are many challenges to overcome, the dream of making Mars a second home for humanity is within reach. With further advancements in technology and space exploration, who knows what the future holds for humanity’s future on Mars.


1. Can humans survive on Mars?

As of now, humans cannot survive on Mars due to the harsh living conditions, including extreme temperatures and high levels of radiation.

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