Fortune-telling Mars is too weak _ What if Mars is weak?

What causes the air on Mars to become extremely thin?

Mass, gravity, magnetic field and many other factors, the mass of Mars is too small, and gravity is not enough to bind molecules in the atmosphere. Mars has a weak magnetic field, and most charged particles in the solar wind can enter the Martian atmosphere, exciting molecules in the atmosphere, so that molecules can quickly escape to outer space.

Mars' atmospheric density is very thin, which makes its temperature very low and cold, almost every year. A lot of carbon dioxide can only be converted into rocks. Thin oxygen and thin atmosphere even have no effect on the greenhouse effect.

To sum up, because there is no atmosphere and geological structure like the earth, and the extremely unstable liquid water body, it is doomed that Mars cannot have the warm sunshine and suitable environment like the earth.

Extended data The orbit of Mars is elliptical. Therefore, where the sun shines, the temperature difference between perihelion and aphelion is close to 160 degrees Celsius. This has a great influence on the climate of Mars.

The average temperature on Mars is about 2 18K (Kelvin, degree-day, that is, from absolute zero -273. 15℃(-55℃, -67℉), but it is 140k(- 133℃) away from winter. Although Mars is much smaller than the earth, its surface area is equivalent to the land area of the earth's surface.