There are several plans to explore Mars with robot and occupation missions in the coming decades. The ultimate goal of these missions is to determine whether people could live there one day. This requires access to building materials, water, the latest manufacturing technology and dwelling systems with a closed loop with binner-fermenting life support systems (BLSS). In principle, future settlers have to create conditions that imitate themselves with self -supporting ecological systems – essentially we “have to bring the earth to other planets with us”.
In the long term, these efforts could extend to the entire planet to make Mars “earthy”. This process is called “terraforming”, and many suggestions have been made in the past 50 years. In a recently carried out study, an interdisciplinary team presented a new way to warm up the atmosphere of the Mars using nanoscala -aerosols made of graphs and aluminum. Their results indicate that the atmospheric dynamics and radiation processes of Mars enable constructive aerosol warming, which could represent the first step towards terraforming the planet.
Edwin S. Kite, Associate Professor at the University of Chicago and member of the Curiosity Rover's Science team, led the study. For him, researchers in planetary research Aeolis Research, the Northwestern University, the University of Central Florida, joined Haystack Observatory, the European Center for Weather forecasts with medium -sized area (ECMWF) and Nasas Jet Propulsion Laboratory. The paper that described its results was presented at the conference of moon and planet science in 2025.
When it matters, the process of the terra -forming Mars consists of three interconnected steps. This means that progress in one of these areas leads to progress in the others. This includes heating the atmosphere, thickening of the atmosphere and melting the polar ice cap and the permafrost. By heating the planet, the polar ice cap and the permafrost would melt and released liquid water onto the surface and water vapor into the atmosphere. The abundant amounts of dry ice in both ice cap would be sublimated, additional carbon dioxide would release them into the atmosphere and further heat it.
As Robert Zurbrin stated in the case of Mars, this process would lead to atmospheric pressure (ATM) of around 300 billion bar (30% of the ATM on sea level). This would be enough for people to stand outside without a pressure suit, although they would still need warm clothes and oxygen. Many suggestions were proposed to reach the first step, from the distribution with low albedo or plants via the polar caps (Sagan, 1973) to the filling of the atmosphere with Chlorfluorocarbons (CFCS) (Lovelock/Alleby, 1984) and Ammonia.
There were also suggestions to add carbon dioxide or methane to the atmosphere by harvesting it locally or importing it from another body (Venus or Titan). These suggestions would require great commitment to resources and considerable technological progress. Aerosols, on the other hand, represent an inexpensive means of increasing the atmospheric temperatures on Mars. However, there are several questions about how atmospheric dynamics on the Mars of Warming (due to greenhouse gas or aerosols) are influenced and vice versa. Since they find out in their newspaper, this includes:
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How high have aerosols get?
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How far do you disperse?
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Do you drive the local weather at the release point?
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How long does it take until the inpatient state?
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Is the release location important?
Earlier studies have examined the Aerosol feedback on Mars on natural dust, which is regularly absorbed by seasonal dust storms. Her work also builds on an earlier study under the direction of Samaneh Ansari, a postdoctoral student at Northwestern University, which included Kite and several other co-authors from this latest study. In this study, the team, like nanoparticles that were made in situ from Mars resources, could heat the atmosphere of the planet.
For this latest study, the team combined the Mars Weather Research and forecast model (Marswrf)-a modified version of the WFT-with a Plume Tracking General Circulation model (GCM) developed by the National Center for Atmospheric Research (NCAR). This latter model was based on previous work that the team followed on Mars. Their models took into account the release of graphen nanodisci and aluminum nanorods from two sources on the surface of the Mars.
These aerosols absorb and sprinkle the light in the mid -infrared (MIR) spectrum, especially at ~ 10 and ~ 20 micrometers (μm). In combination with time -varied simulations of natural dust, their results showed that these feathers would spread worldwide within a year and thicken the upper atmosphere of Mars. They also found that this aerosole would heat the atmosphere of Mars with more than 35 Kelvin in 10 years. This would be enough to trigger melt on the poles, to thicken the atmosphere and lead to additional warming.
The resulting warming would also double the atmospheric cycle, where warm, moist air near the equator increases at higher heights (“Hadley cells”). Steeper temperature gradients between sun lighting regions and polar regions would double the speed of the almost surface winch, which is the opposite of the functioning of the KOW warming reaction of the earth. Finally, they found that the modification of the size of the nanodisk and rods would lead to greater warming (or if necessary).
The release of aerosols should also be consistent until the atmosphere of Mars is thickened enough to maintain warmer temperatures. While there are considerable challenges, such as preventing agglomeration and, including the water cycle of Mars, the team comes to the conclusion that constructed aerosols would be an effective first step in the terraforming Mars.
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