A thin layer of airgel, allowing humans to live on Mars is most likely to want to be

a long time, people have been dreaming of changing the Martian climate, making it suitable for human habitation. 一层薄薄的气凝胶,让人类在火星上居住极有希望成为可能 Carl Sha root Carl Sagan was the first person to propose the transformation of Mars outside the realm of science fiction. Sagan in the 1971 paper \”works on the planet Mars,\” pointed out evaporation of the Arctic ice cap will likely produce the Martian atmosphere, the greenhouse effect leading to higher temperatures, there is the possibility of liquid water greatly increased. Sagan\’s work inspired other researchers and futurists to take seriously the idea of ​​transformation of the planet Mars. The key question is: Is there enough water to greenhouse gases and atmospheric pressure to raise its level on Earth-like Mars 2018, University of Colorado by the NASA-funded, university and Boulder? researchers at the University of Northern Arizona found on Mars all available resources will only atmospheric pressure is increased to about 7% of the Earth, Mars is far below the required pressure livable. 一层薄薄的气凝胶,让人类在火星上居住极有希望成为可能 Mars become the Earth seems to be an unattainable dream. Now, researchers from Harvard University, NASA\’s Jet Propulsion Laboratory and the University of Edinburgh has a new idea. Rather than trying to change the entire planet, it is better to take a regional transformation method it? Researchers believe that certain areas of the surface of Mars can be a substance, silica airgel atmosphere similar to Earth\’s greenhouse effect, to live. By modeling and experiments, researchers showed that the silica airgel a two to three centimeters thick visible light may impart sufficient photosynthesis, blocking harmful ultraviolet radiation and increase the temperature of water permanently maintained in the melting point above, without any internal heat source. This paper was published in \”Nature Astronomy\”. 一层薄薄的气凝胶,让人类在火星上居住极有希望成为可能 with different ideas before make Mars suitable for living, which make Mars suitable for a regional approach to live easier to implement than the transformation of the global atmosphere, we can take advantage of an existing material and technical systems development and testing stuff . in the solar system, in addition to the Earth, Mars is the most suitable for habitable planets. But for many species, it is still a hostile world. The creation of a Department of habitable islandThe system will allow us to expand in a controlled manner and the transformation of Mars. Unlike the polar ice caps, frozen earth is made up of water, polar ice caps on Mars is a combination of water ice and frozen carbon dioxide. Like its gaseous form as frozen carbon dioxide at the same time it allows sunlight to penetrate to absorb heat. In summer, the greenhouse effect will produce a solid piece of ice in the warming. solid-state greenhouse effect, what kind of material can be reduced to the lowest thermal conductivity, while transport as much light? Researchers Focus on silica airgel, which is one of the materials of the insulating ever. Silica airgel has a porosity of 97%, which means that light may pass through the material, but the silica nanoparticles of the infrared radiation layer connected to each other, greatly slowing the conduction of heat. Today, these airgel has been used in a variety of engineering applications, including NASA\’s Mars Exploration Rover. 一层薄薄的气凝胶,让人类在火星上居住极有希望成为可能 Articles image FIG: a thin layer of thermally conductive material may be translucent, low transmission of visible light but block ultraviolet and infrared radiation effects a direct copy of the Earth\’s atmosphere. Due to thermal diffusion, the depth of the subsurface habitability area increases with time. Tav is the average surface temperature. Silica airgel is a promising material because it is passive role, it may be a long period of time, to maintain a warm area without extensive maintenance or energy moving member . By simulation model and experimental surface of Mars, the researchers demonstrated that a thin layer of this material can increase the average temperature of the Martian mid-latitudes similar to the Earth\’s temperature. In a large enough area, you do not need any other technology, such as a layer of material that you only need to cover the surface and below, you will have a permanent liquid water. This material can be used to build the dome and even self-sufficient living biosphere on Mars. Next, the research team\’s goal is to test this material under climatic conditions similar to Mars on Earth, such as the dry valleys of Antarctica or Chile.

but it is important that any discussion about the make Mars suitable for human life on Earth and live, have raised important philosophical and ethical issues related to the protection of the planet. If you want to create life on the surface of Mars, are you sure there has been no life yet? Once we decided to let the man touchedMars, these problems are inevitable.

References: 1. Baidu Encyclopedia 2. A material way to make Mars habitable3 Enabling Martian habitability with silica aerogel via the solid-state greenhouse effect4 Silica aerogel could warm the Martian surface similar to the way greenhouse gasses keep Earth warm

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