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A new idea for creating Mars habitat

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Creating a habitat or biological reserve on Mars by taking ideas from the habitats on Earth and the environmental mechanism governing our planet seems crazy. Still, not all experts have such an opinion, and some consider it practical.

Our population on planet earth has now reached 8 billion people. According to the United Nations, when the Earth’s population reaches its peak sometime around 2100, there will be 11 billion people on our planet. According to the World Wildlife Federation, our population growth is clashing with the natural world on a larger scale than ever before, and we are losing between 200 and 2,000 species each year.

Creating habitat on Mars

Creating mars habitat

These propositions may seem to have nothing to do with the article’s subject, But the keyword of the mentioned sentences, which will be essential for us in this article, lies in “collision.” British engineering believes that one of the ways to reduce the damage caused by the collision between humans and nature is to create more habitats. We can do this by building a Terran ecosystem on Mars. In the continuation of the article, we will get to know more about this idea.

Paul L. In an article in the International Journal of Astrobiology, Smith, a civil engineer at the School of Engineering at the University of Bristol, UK, explains how we could build a nature reserve habitat on Mars and how such a reserve could serve as an Extraterrestrial Nature Reserve (ETNR). According to Smith’s ideas, the ETNR functions as both a psychological sanctuary and a botanical garden.

The idea of building a nature reserve habitat or something similar on the red planet may seem ridiculous at first glance. Still, we should remember that Smith is an engineer, and he thought about this issue during his career and explained it in his article.

Furthermore, Smith agrees on something other than the imminence or availability of ETNR on Mars. He has a long-term view, and his opinion is based on a fundamental assessment: humans will continue to put more pressure and damage on Earth, and we will continue to colonize Mars.

By confirming this premise, Smith argues that ETNRs should be considered a necessary and efficient part of any colonization effort on Mars. Smith isn’t the first to think of this idea, and he draws on many previous research in his thoughts.

Maybe it is better to pay attention and evaluate the “possibility” of doing it on Mars before discussing whether it is “wise” for creating a mars habitat. When we focus on the possibility of doing extensive technical work, who can do it better than an engineer?

The length of the Martian day is similar to the day on Earth, and this fundamental issue may remove many obstacles. In addition, Mars is much colder than Earth; But currently, there are systems to maintain and preserve the enclosed spherical sanctuary; Therefore, the temperature can be managed without much complexity. Another critical point is about the dry surface of Mars; however, there is plenty of frozen water beneath the Red Planet’s surface. From this, we can conclude that the water supply problem will be solvable.

The atmospheric compositions of Mars and Earth are very different; However, compared to other cases, this challenge is probably considered a simple and manageable issue. By relying on the science of physics and existing technologies, a closed environment can be engineered to reach the desired atmosphere for the implementation of the project. The presence of plant life can regulate the background to some extent. Besides these, temperature and pressure will be the two most specific factors to adjust or change by human hands.

Everything mentioned in the above paragraphs for creating a mars habitat was the basic principles, and maybe you are familiar with parts of it or have read about it. Still, when it comes to more detailed analysis, more confusing and complex issues will gradually show themselves. In Smith’s research, this part of the challenges has been discussed in detail.

Creating mars habitat

We could consider the radiation environment of Mars as the starting point of complications. Without a layer like the ozone layer on Mars, the Red Planet’s surface would be exposed to dangerous levels of ionizing UV radiation. Smith writes:

Due to the thin atmosphere and the lack of a suitable ozone layer, the harsh ultraviolet flux on the surface of Mars makes the Earth infertile. Some amount of UV radiation is desirable and forms part of the metabolism of some living organisms. Humans need some ultraviolet rays to stimulate the production of vitamin D. Still, various terrestrial life forms are incompatible with the increase of ultraviolet radiation and need adequate protection against these radiations.

 

Smith adds:

Fortunately, glass-plastic composites can block harmful wavelengths from entering, allowing beneficial UV and visible light to pass through. Therefore, the UV flux in the CTTE (Terran-Contained Terran Ecosystem) is restrained.

 

Magnetic fields are a broader issue. We know that the magnetic field protects the planet from cosmic rays and prevents the destruction of the ozone layer by the solar wind. However, we need a complete understanding of the mechanisms behind the operation of the Earth’s magnetic fields. Some organisms use the Earth’s magnetic field to migrate and move in different directions.

Read more : Jupiter planet, all moons and specifications

Some scientists refer to the correct and complete understanding of the Earth’s magnetic fields as “the greatest mystery in animal biology.” Naturally, we all agree on the need to understand such a mystery better, But can we engineer an artificial magnetic field in CTTE with current knowledge? Life on Earth also changes with the change of seasons. The structure of the biome changes and this must be managed. Seasonal variation on Mars is very different from Earth; Therefore, seasons must be engineered. Smith explains:

Timing determines the critical stages of the development of individual physiologies and interspecies relationships. Meanwhile, the timing of non-living events affects the global nutrient flux.

Smith further mentions that photoperiod and winter cold play a role in the phenology of temperate plants. Phenology includes things like budding and bud break and flowering in plants. Also, more complex behaviors of animals, such as migration, breeding, and egg-laying, are included in this category. These behaviors are coordinated in nature, between individuals, and between different species. Repeating them will be a big issue.

Mars life is intricately linked to the changing seasons

Creating mars habitat

Humans do not reproduce seasonally; But we are also not separated from the seasons, and this dependence increases, especially in temperate regions. Seasons also have vital features for psychological regeneration.

Phenomena such as autumn color, winter silence, spring flowers, and summer leaves may seem simple, But they are necessary and efficient. Another difference between Mars and Earth that may need to be noticed in some analyzes is the lunar cycles. Earth’s moon is vast and has a great influence on our planet. Phobos (the smaller moon) and Deimos are the two potato-shaped moons of Mars and have almost no influence on Mars.

Even if Mars is full of life and organisms and oceans, the fact is that those two small rocks cannot create tides on the surface of Martian waters. There may be areas on Mars where these two moons are never visible. Smith describes Earth’s moon as a “Zitgeber.” Zeitgeber is a natural and rhythmic phenomenon that acts as a sign of regulating the body’s circadian rhythms. The length of the Mars day is similar to that of the Earth; Therefore, perhaps daily rhythms are not difficult.

Mars receives only 43% of the amount of sunlight received by Earth. Research shows that this amount of the sun would be enough for photosynthesis on the Red Planet, But the growth rate of plants on Mars will only match the same rate on Earth with artificial augmentation. This issue is another obstacle that can be overcome with engineering and technology, But the problems related to that will eventually make ETNR more complicated.

Smith talks about putting natural preserves in underground lava tubes and believes such an idea would protect against ultraviolet rays and other benefits. In these cases, artificial light reinforcement is also needed. We must not forget that the ETNR complex also needs soil. Mars has a basaltic crust rich in many nutrients necessary for plants. Smith writes while referring to the research of other scientists.

Martian storms sometimes become very big and violent due to the geographical extent of their influence

Based on the research, some of these cases can be repeated in the rocky cover of Mars; However, these researches have been conducted on soil made from Mars and on Earth. How confident can we be that we can build a complete soil system on Mars?

Martian rock also contains higher levels of toxins compared to Earth’s soil. There are higher levels of perchlorate on Mars, making the rocky planet a toxic environment for various life forms. Also, there are much more iron oxides in Martian rock, and when combined with increased levels of perchlorate and hydrogen peroxide, it will create a very toxic product.

Can remedial action be taken against it? The answer is probably yes. Making soil from scratch is one of the critical components in creating ETNR and will be among the complex issues in this path.

Soils derived from basalt with volcanic ash are fertile agricultural soils. Crushed basalt can increase soil pH, While its dissolution causes the release of useful nutrients, including phosphorus. Phosphorus is one of plants’ three main nutrients to grow: nitrogen, phosphorus, and potassium.

There is probably enough nitrogen in the Martian soil to grow plants, But the fact is that it is not only nitrogen; plants also need 16 other micronutrients for Creating mars habitat . According to Smith, these are all reported from Martian or Martian meteorites; But other chemicals are effective in soil fertility that plants do not directly consume. This is a complicated puzzle.

Earth’s soil not only contains all the nutrients plants need but is also full of microbes and organisms such as earthworms. These organisms are part of the living system in the Earth’s soil. The question is, does the whole system need to be rebuilt? If so, that should be considered an extraordinary level of sophistication.

Martian storms sometimes become very big and violent due to the geographical extent of their influence

Based on the research, some of these cases can be repeated in the rocky cover of Mars; However, these researches have been conducted on soil made from the soil of Mars and on Earth. How confident can we be that we can build a complete soil system on Mars?

Read more : Mars colonizing by SpaceX company

The lower gravity of Mars must also be taken into account for creating a mars habitat. The gravity of Mars is only 38% of the gravity of Earth. Gravity is one of the factors that regulate the growth of plants. As an example of gravity-related issues, could a spindly evergreen tree grow in the reduced gravity of Mars? Smith writes about this:

Based on experiments, a gravitational acceleration equal to 0.3g (this value is less than the gravitational acceleration of Mars) would be enough to trigger gravitational responses. Still, this meristem (segmental) ability can be destroyed by gravity like the moon’s gravity (approximately equivalent to 0.17g).

Gravitational responses are the response of plant life to gravity and work in two ways. Charles Darwin showed that plant roots exhibit positive attraction; they grow toward the center of gravity. This is while the stems do the opposite. Research shows that plants can grow and photosynthesize in microgravity.

Martian rock also contains higher levels of toxins compared to Earth’s soil. There are higher levels of perchlorate on Mars, making the rocky planet a toxic environment for various life forms. Also, there are much more iron oxides in Martian rock, and when combined with increased levels of perchlorate and hydrogen peroxide, it will create a very toxic product.

Can remedial action be taken against it for creating a mars habitat? The answer is probably yes. Making soil from scratch is one of the critical components in creating ETNR and will be among the complex issues in this path.

Martian dust storms also play their role in the equations. Some Martian rocks are so fine that storms blow them up. The magnitude of these storms in terms of the area of influence is sometimes equal to the size of the United States. These layers accumulate on surfaces and cause problems for solar panels deployed on Mars landers. These storms also reduce the amount of solar energy reaching the surface and create more difficulty and pressure for photosynthesis.

Via: Universetoday

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How to prevent the earth from being baked by the scorching sun?

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In the next few hundred million years, the sun will become so hot and bright that life on Earth will not be possible. But how we increase the habitability of the earth?

How to prevent the earth from being baked by the scorching sun?

One day, the sun will enter a stage where life on Earth will no longer be possible and our planet will simply turn into a mass of iron and nickel. The good news is that if we do our best, we can keep our home livable even after the sun gets too hot.

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James Webb space telescope map of the climate of an exoplanet

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James Webb space telescope map of the climate of an exoplanet

The James Webb Space Telescope helped researchers map the climate of an exoplanet.

James Webb space telescope map of the climate of an exoplanet

An international team of researchers has successfully used the James Webb Space Telescope to map the climate of a hot gas giant exoplanet.

According to NASA, detailed observations in a wide range of mid-infrared light, along with 3D weather models and previous observations from other telescopes, show the presence of dense, high clouds that cover the sky during the day and night, as well as show tropical winds. They say they are merging atmospheric gases at 5,000 miles per hour around the exoplanet WASP-43 b.

This is the latest demonstration of exoplanet science, now made possible by James Webb’s extraordinary ability to probe temperature changes and detect atmospheric gases trillions of miles away.

The exoplanet WASP-43 b is a type of “Hot Jupiter”. This Jupiter-sized planet is made mostly of hydrogen and helium and is much hotter than the other giant planets in the solar system. Although its star is smaller and cooler than the Sun, WASP-43 b orbits at a distance of 1.3 million miles, less than one-twenty-fifth the distance between Mercury and the Sun.

With such an orbit, the planet is tidally locked; This means that one side is constantly lit and the other side is in permanent darkness. Although the night side never receives any direct radiation from the star, strong eastward winds carry heat from the day side around.

Since the discovery of the planet WASP-43 b in 2011, it has been observed by several telescopes, including the Hubble Space Telescope and the Spitzer Space Telescope. “With the Hubble Space Telescope, we can clearly see that there is water vapor on the day side of the planet,” said Bay Area Environmental Research Institute (BAERI) researcher Taylor Bell. Both Hubble and Spitzer showed that clouds may exist on the night side, but we needed more detailed surveys with the James Webb Space Telescope to begin mapping temperatures, cloud cover, winds, and atmospheric composition more precisely across the planet.

Although WASP-43 b is too small, faint, and too close to its star to be seen directly by a telescope, the planet’s short orbital period of just 19.5 hours makes it ideal for “phase curve spectroscopy.” The phase curve spectroscopic method involves examining small changes in the brightness of a star-planet system as the planet orbits the star.

Because the amount of mid-infrared light emitted by a body depends largely on how hot it is, James Webb’s brightness data can be used to calculate a planet’s temperature.

For more than 24 hours, the research team used James Webb’s Mid-Infrared Instrument (MIRI) to measure the light of the WASP-43 system every 10 seconds. “By observing an entire orbit, we were able to calculate the temperature of different sides of the planet as it rotated into view,” Bell explained. Based on these calculations, we were able to create a map of the temperature of the entire planet.

Measurements show that the air temperature on the day side of the planet is close to 1250 degrees Celsius on average; While the temperature of the night side reaches 600 degrees Celsius and is significantly cooler. These data help locate the hottest spot on the planet, which is slightly eastward from the point receiving the most stellar radiation. This change occurs due to the blowing of winds that move the warm air towards the east.

“Michael Roman” (University of Leicester) researcher and one of the researchers of this project said: “The fact that we can map the temperature in this way is a real proof of James Webb’s sensitivity and stability.”

To interpret the map, the researchers used complex 3D atmospheric models, similar to those used to understand weather and climate on Earth. Analyzes show that the night side of the planet is probably covered in a dense and high layer of clouds, and this layer prevents part of the infrared light from reaching space. As a result, although the night side is very warm, it appears dimmer and cooler than when there are no clouds.

The broad spectrum of mid-infrared light taken by James Webb makes it possible to measure the amount of water vapor and methane around the planet. “Joanna Barstow”, a researcher at “The Open University of UK” and one of the researchers of this project, said: “James Webb has given us the opportunity to find out exactly which molecules we see and put limits on their abundance.”

The observed light spectra show clear signatures of water vapor on the planet’s nightside and dayside, providing additional information about the density of clouds and their height in the atmosphere.

Read more: The highest observatory in the world officially started its work

Also, the researchers were surprised to find that the data showed a lack of methane everywhere in the atmosphere. Because the day is too hot for methane to exist, methane should be cooler, stable, and detectable at night.

“The fact that we don’t see methane tells us that the wind speed on WASP-43 b must be about 5,000 miles per hour,” Barstow explained. If the winds move the gas from the day side to the night side of the planet and back again quickly, there won’t be enough time for the chemical reactions to produce detectable amounts of methane on the night side.

Researchers believe that because of this wind-driven mixing, the chemistry of the atmosphere is the same across the planet. This result was not clear in previous researches that were conducted with Hubble and Spitzer telescopes.

This research was published in “Nature Astronomy” magazine.

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The highest observatory in the world officially started its work

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The highest observatory in the world

The Tokyo Atacama University Observatory, which has the title of the highest observatory in the world, is now ready for work.

The highest observatory in the world officially started its work

A new telescope, which is introduced as the highest observatory in the world, has been officially opened.

Tokyo Atacama University Observatory (TAO), which was first designed 26 years ago to study the evolution of galaxies and exoplanets, is located on top of a high mountain in the Chilean Andes at an altitude of 5,640 meters above sea level. . The height of this telescope even exceeds the “Atacama Large Millimeter Array” (ALMA), which is located at an altitude of 5050 meters.

The TAO observatory is located in a region where the high altitude, sparse atmosphere, and perpetually dry weather are deadly for humans, but it is an excellent spot for infrared telescopes like TAO because their observational accuracy relies on low humidity levels that keep the Earth’s atmosphere at wavelengths. Infrared makes it transparent.

Yuzuru Yoshii, a professor at the University of Tokyo (UTokyo), said: “Building a telescope on the top of the mountain was an incredible challenge, not only from a technical point of view but also from a political point of view.” I communicated with the indigenous people to ensure their rights and views were taken into account, with the Chilean government to obtain permits, with local universities for technical cooperation, and even with the Chilean Ministry of Health to ensure that people could climb safely at that altitude. to work

He added: The research that I have always dreamed of doing, thanks to everyone involved, will soon become a reality and I could not be happier.

The 6.5-meter TAO telescope has two science instruments designed to observe the world in infrared light. One such instrument, called SWIMS, will image galaxies in the early universe to understand how they formed from the merger of dust and pristine gas. Despite decades of research, the details of this process remain obscure. The second device, MIMIZUKU, will contribute to the mission’s overall goal by studying the primordial dust disks from which stars and galaxies formed.

Riko Senoo, a student at the University of Tokyo and a researcher on the TAO project, said: “The better astronomical observations of the real object, the more accurately we can reproduce what we see with our experiments on Earth.”

Masahiro Konishi, a researcher at the University of Tokyo, said: “I hope that the next generation of astronomers will use TAO and other ground-based and space-based telescopes to make unexpected discoveries that challenge our current understanding and provide the unexplained.”

Read more: Why there is no gaseous moon in solar system?

Before the newly opened telescope was built, Yoshi and his colleagues in 2009 also assembled a 1-meter telescope on top of Mt. This small telescope called “miniTAO” imaged the center of the Milky Way galaxy. Two years later, miniTAO received the Guinness World Record for being the highest astronomical observatory on Earth.

Although the observatory has been the talk of the town for the past 26 years, work on its construction site began in 2006. At that time, the first road to reach the summit was paved, and shortly after, a weather monitoring system was installed there.

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