Humans on Mars: 8 things that are delaying our arrival

When the last flight of the Apollo mission was carried out, the manned flights to the Moon, in 1972, it was believed that the next step would be the trip to the planet Mars, planned for the 80's.And although we were supposed to be Technologically ready to face the challenge, various motives were converging and conspiring so that this great step, that of placing humans on Mars, could not happen in a successful way.

Here we offer you 8 reasons for which we have not yet set foot on the red planet.

Humans on Mars: 8 things that are delaying our arrival

1.The delay begins with the Moon , because the entire space program, compared to the advances of the sixties and seventies of the last century, is lagging behind the objectives that we should have achieved.If we had followed the rhythm of those two epic decades for the conquest of space, we should already have bases on the Moon and the technical capacity to undertake from there trips to Mars.

China and the United States set out to return to the Moon ; in the case of the Americans, in 2020, and continue towards Mars in the second half of the century.But these plans have been postponed due to spending during the global financial crisis, wars and the current economic recession.

2.And this is perhaps the main reason why there are not yet humans on Mars: the huge financial cost of the project .Let's look at it like this: the cost of the Apollo space program to reach the Moon, up to Apollo 11, was about 25,000 million dollars , and we are talking about a few days trip to a satellite that is barely 370,000 kilometers away; Mars, when it is closest to Earth, is at distances ranging from 55 to 59 million kilometers.

The lowest calculated cost is above one million million US dollars .It seems a lot, but it is not so much if we consider that the Iraq war meant, only for the United States, 845,000 million dollars .

3. Unwanted passengers .Different experiments have proven that there are bacteria and microorganisms that could withstand a long journey through space, and become unexpected settlers of the red planet.It determines that there is life on Mars, even if it is microbial, it will be necessary to ensure that the ships do not carry any unscheduled living being that can become a plague on Mars.

4. Unwanted hosts .In case of life on Mars, it will probably be microbial or bacterial (or they would have already invaded us), so we would have to take precautions, because we would not have defenses for these aliens that could see us as food coming from space.

5.The propulsion systems for spacecraft need to be improved.The fuels currently used need the presence of oxygen for combustion, they take up a lot of space and they are only effective in the Earth's atmosphere.

Humans on Mars: 8 things that are delaying our arrival

We need to develop new propulsion technologies, which are somehow similar to those we imagine in science fiction stories, such as anti-gravitational forces.Let's not forget that phrase de Verne: “Everything a person can imagine, others can do it dad ”.

6.The problem of spatial dementia has to be solved.It is a series of nervous disorders that can occur when you spend too much time in the space, and it has been studied thanks to Russian and American astronauts who have been in space stations for long periods.

Humans on Mars: 8 things that are delaying our arrival

Do not forget that a trip to Mars could last 8 to 10 months and that it would be three or four astronauts sharing a very small space, and surely uncomfortable.We could be sending potential lunatics to Mars.

7.Another problem that would have to be solved is that of the effect of prolonged exposure to lack of gravity .Place humans on Mars not It only implies exposing them to this situation during the trip but also during their stay on the red planet, since Martian gravity would correspond to 2/5 parts of the Earth.

Humans on Mars: 8 things that are delaying our arrival

It is estimated that astronauts would lose a 1% monthly bone density, unless it is counteracted with 5 or 6 hours of exercise, in a mission that could be at least two years, at least.

8.There is another problem with the journey; as we said, it is a journey of at least 55 million kilometers, which will not be done through a perfect vacuum.The solar system is full of asteroids and debris of various sizes, remains of comets and energy flows or cosmic rays.Even in the near space, at the International Space Station, astronauts have been exposed to emanations of energies that fortunately have not generated, at least apparently, health problems.Diverse materials that are used are being considered to protect astronauts, without excessively increasing the weight of the ship.

Certainly they are serious but not insurmountable obstacles, so we can expect that in the next decades we will reach our neighbor, and the presence of humans on Mars no longer surprise anyone.

Lee Dry ice to live on Mars? and the Arab Emirates plan to send a mission to Mars, so you can see that many people have that idea in their heads.

Images: FbThienVanHoc, hto2008, NASA’s Marshall Space Flight Center, Steve Jurvetson

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