As the technology advances day by day, it makes our life very easier. We can cover long distances in a few hours, we can be in touch with our loved ones 24x7. We have accessed the information of the whole world in our hands within just one click.

Our rockets have reached on other planets and searching place for life on a new home. We have cured many fatal diseases. Now we are working on almost every humans dream i.e., longevity or immortality (which is not possible in the very near future) with healthy life.

But there are still some questions arise. What is really possible and what can we achieve. We are looking for answers …

Yes, we are looking for life on other planets and satellites in our solar system as well as in the galaxy. We have also an eye on some very distant planets in other galaxies too. We are almost ready to conquer those planets and start making human colonies. Yes, we will be ready to expand human civilizations to the next level in near future.

All the above expectations of humans are on papers now, if we say this will be in the near future, then it will be our space fantasy because we are not that much advance to fully conquer other planets right now. Currently we are on Civilization type 0 according to Kardashev scale. Our main source of energy is still biomass and fossil fuel. We are not that much rich in clean energy to achieve type 1 civilization.

The Kardashev scale is a method of measuring a civilization’s level of technological advancement, based on the amount of energy a civilization is able to use for communication, proposed by Russian astrophysicist Nikolai Kardashev. The scale has three designated categories:

A Type I civilization

also called a planetary civilization—can use and store all of the energy which reaches its planet from its parent star.

A Type II civilization

also called a stellar civilization—can harness the total energy of its planet’s parent star (the most popular hypothetical concept being the Dyson sphere—a device which would encompass the entire star and transfer its energy to the planet(s)).

A Type III civilization

also called a galactic civilization—can control energy on the scale of its entire host galaxy.

Source

I think if we successfully establish colonies on Mars, still it will take many decades or centuries to make it home. There will many difficulties to set up life support properly. First priority to create oxygen to breathe and find drinkable water. Oxygen will be our main concern because there is 97.95% Carbon dioxide and 0.146% Oxygen in the atmosphere.

We have visited in space but are we ready for trip to very distant journey to other planets and what will be our experience? As sources says we will send humans to Mars in the near future and will return to home safely. But still, it will take a lot time to colonize the Mars. Humans will be device dependent and will be under their research facility for the whole time and will go out in their space suits. You can imagine what will be life there. It will be completely different from earth. For many decades, only scientist will visit there to do many researches to make it habitable for humans.

We have to plant trees or create machines to convert CO2 to Oxygen, but both cases are difficult. To grow plants or trees, we need water. And to run machines to convert the CO2 into Oxygen, we need large amounts of energy.

The good thing is, this reddish planet is rich in iron-oxide, which gives it a reddish color. We need large machines to extract oxygen from its land.

We also have found water on Mars, but not in the same proportion and type like on earth. We know that once the mars used to be warm and wet, have rivers and lakes, but now it is cold desert and we have found a huge amount of liquid water lake beneath the southern pole.

Conclusion: I think it will take many years for colonization of the Mars, but it will be a huge accomplishment of the human species to colonize a planet other than earth. We have some experience of space colonization in a space station. But in a few intervals, scientists need to come back to earth. Right now we can not stay forever in space and travel distant space trips and explore new planets, we have to be dependent on over space probes to explore the universe. But one day when we also master the hibernation for space travel, then we can travel the long journey in space…