Can humans live on Mars?

If human beings live on Mars, they must live in a closed living cabin and wear special spacesuits when they go out. The complexity of these facilities and equipment can be imagined.

Although Mars has an atmosphere, its main component is carbon dioxide, accounting for 95%. Other components include: 3% nitrogen, 1.6% argon, a small amount of oxygen and water vapor. And the atmosphere is very thin, which is only equivalent to the atmospheric pressure at an altitude of more than 30 kilometers on the earth. So the air on Mars can't be directly breathed by people.

In terms of temperature, Mars is also not suitable for human habitation. Its average surface temperature is more than 30℃ lower than that of the earth. Like the earth, there are four seasons in a year. In summer, the temperature in the equatorial region can exceed 20℃ during the day, but it will drop below -50℃ at night.

positional information

It is about 55 million kilometers away from the earth, and the farthest distance is over 400 million kilometers. Close contact between them occurs about once every 15 years. In 1988, the distance between Mars and the earth once reached about 58.8 million kilometers, but in 20 18, the distance between them will reach 57.6 million kilometers. But on August 27th, 2003, the distance between Mars and the Earth was only about 55.76 million kilometers, the latest time in 60,000 years.

However, according to astronomers' calculations, during the 800 years from 1600 to 2400, the distance between Mars and the Earth can only rank third. According to the calculation results, by September 2, 2366, the distance between them was about 557 10000 km. By August 28, 2287, the two will be closer, with a distance of about 55.69 million kilometers.

Generally speaking, the year when Mars is close to the Earth is the best time to land on Mars and observe it on the ground.

The above contents refer to Baidu Encyclopedia-Mars.