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Here's all about Mars:
With the last contact with the Martian polar lander on December 6, NASA scientists' efforts to find the whereabouts of the Mars rover for five consecutive days finally failed. However, the U.S. exploration program for Mars has not stopped, and NASA said that the plan to be named "Mission to Mars 2001" was launched on December 7. Prior to this, Lu Yongxiang, president of the Chinese Academy of Sciences, had pointed out on November 1 that the rapid development of space technology gave us a reason to ** that it was possible for humans to land on Mars from 2003 to 2005.
Why do humans spend so much money to explore Mars? Can Mars, the planet that shines with a beautiful red light, really become a second home for mankind?
Why go on an expedition to Mars?
After Earth, Mars is one of the most climate-friendly planets in the solar system. It is even possible that this pleasant climate once led to the presence of primitive life forms similar to bacteria on Mars. Fluid-washed ditches and other geographic features provide ample evidence that liquid water flowed on the surface of Mars billions of years ago.
While it is possible that liquid water may still exist below the surface of Mars, the current low temperature and thin atmosphere on the surface of Mars have made it impossible for liquid water to exist on the surface of Mars. What is causing the climate of Mars to change so much? Does Mars have the necessary conditions for life to appear?
Are there still bacteria living below the surface of Mars? These questions drove us to explore Mars. The climate of Mars has cooled down significantly.
By studying the reasons for the dramatic changes in Mars' climate, we may be able to begin to understand the dynamics that drive climate change on Earth. Peng Wen.
What are we looking for on Mars?
Over the next 10 years, every 26 months, when the relative position of the Earth and Mars is suitable for a spacecraft, more unmanned spacecraft will fly to the fiery red planet. These unmanned spacecraft carry a wide range of equipment, from cameras to sensors, as well as rovers and robotic arms on the Martian surface. They all have a common goal:
Get a better understanding of Mars by delving into its geology, climate, and history.
In 1996, scientists announced that a meteorite believed to be from Mars contained the remains of possible ancient microorganisms. The discovery has rekindled public interest in the desire to know if life exists on Mars. Many scientists say that the key to understanding whether there was life on Mars or not is to understand the history of water on Mars.
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New Discoveries says there are more than a thousand years to go.
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At present, Mars is small, small in gravity, has no atmosphere, and is not suitable for human habitation.
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The Martian atmosphere is dominated by carbon dioxide, thin and cold, full of impact craters, canyons, sand dunes and gravel, and there is no stable liquid water on Mars, so humans cannot live on Mars.
Mars has an axis of rotation tilt of degrees, which is similar to that of Earth, so it also has four seasons, but the seasons are about twice as long. Since the orbit of Mars is about the eccentricity of the Earth only, so that each.
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Terraforming the Martian Environment: A Characterization Analysis.
1. There are essential elements to sustain life.
Although Venus has always been called the sister planet of Earth, the environment of this blazing planet is too uninhabitable for human habitation. Mars, on the other hand, is the second closest planet to Earth. Although it is still a cold and dry planet, it has all the necessary elements to sustain life, including:
Water, possibly in frozen form, carbon and oxygen in the polar ice caps of Mars, in the form of carbon dioxide.
CO2), nitrogen.
Mars' current atmosphere bears a striking resemblance to Earth's atmosphere billions of years ago. When the Earth was first formed, oxygen was absent and it appeared to be a desolate, barren land. The atmosphere is made entirely of carbon dioxide and nitrogen.
It wasn't until photosynthetic bacteria evolved on Earth that enough oxygen was produced to evolve animals. Similarly, the thin atmosphere on Mars is now almost entirely made up of carbon dioxide.
2. The composition of the Martian atmosphere.
of carbon dioxide.
of nitrogen. of argon.
of oxygen. In contrast, the Earth's atmosphere is made up of nitrogen, oxygen, argon, carbon dioxide and other gases. As can be seen from this detailed comparison, all humans visiting Mars now have to carry large amounts of oxygen and nitrogen to sustain life.
3. Temperature. The average surface temperature of Mars is as low as the maximum temperature and the minimum temperature is lower than that of the Earth.
Comparison of Mars before and after the terraforming of Mars.
Similar features. Still, Mars has several characteristics that are very similar to Earth that have led people to consider it as a place to live, including:
The rotation rate is 24 hours and 37 minutes (Earth: 23 hours and 56 minutes).
The axis of rotation is tilted to 24 degrees (degrees for the earth).
Gravitational force is one-third of the gravitational pull of the Earth.
The distance from the sun is close enough that there are seasons. Mars is about 50% farther from the Sun than Earth is from the Sun.
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Mars is inhabitable to humans. The environment on Mars, where the atmosphere is thin, is only one percent of that of Earth, and is mainly composed of carbon dioxide (percent plus nitrogen (percent argon) and trace amounts of oxygen (percent and water vapor (percent. Compared to Earth, Mars is less geologically active, and most of the surface landforms were formed during the more active period of antiquity, with dense meteorite craters, volcanoes and canyons, including the highest mountain in the solar system
Mount Olympus and the largest canyon: Mariner Canyon. Another topographical feature is the stark difference between the northern and southern hemispheres:
To the south is the ancient, crater-ridden land of Kochi, while to the north is a younger plain.
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1. Mars is inhabitable to humans.
2. The environment on Mars, the atmosphere is thin, only one percent of the Earth's, and it is mainly composed of the remaining carbon dioxide (one percent, plus nitrogen (one percent, argon (one percent, and a trace amount of oxygen (one percent, and water vapor in the middle (percent).
3. Compared with the Earth, the geological activity of Mars is less active, and most of the surface landforms were formed in the more active period of ancient times, with dense craters, volcanoes and canyons, including the highest mountain in the solar system: Mount Olympus and the largest canyon: Mariner Canyon.
Another feature of the mountain is the stark difference between the northern and southern hemispheres: the south is an ancient, crater-filled highland, and the north is a younger plain.
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