Life once existed on Mars? According to scientists' preliminary understanding of Mars, it is found that Mars itself is in the livable zone of the solar system. This unique geographical location gives Mars a good living environment, so there should be life in the early days of Mars. However, after the probe successfully landed on Mars, it did not find any traces of life or even signs of life on Mars. It seems that Mars is a barren planet.
However, in scientific speculation, Mars should have existed before the birth of life on earth, because through all-round observation of Mars, it was found that there were "traces" of floods in the valley of Mars, so the original Mars had water resources, and according to the position of the planets and various conditions needed by life, Mars did have life, but it later disappeared. Scientists believe that this event occurred in a very short time.
Why did the Martian atmosphere suddenly disappear? In fact, looking at all the conditions of Mars, we will find that Mars once had a magnetic field, an atmosphere and liquid water. It can be said that all the conditions needed for life or Mars once existed, but now there is no life on Mars. Therefore, scientists speculated and analyzed the history of Mars, and found that Mars had been hit by many asteroids. For example, in the early days of the birth of the earth, Mars was "hit" by a planet like Pluto, which also made Mars wither gradually.
According to scientists, once an asteroid with a diameter of more than 10 km hit the earth, dinosaurs went extinct directly. If a planet like Pluto collides, it is conceivable that the destructive power is huge. After this huge impact, the core of Mars began to cool, and then the magnetic field and atmosphere gradually disappeared. The atmosphere is the main way to protect things on the surface. When the atmosphere became thinner, the surface of Mars gradually peeled off, leaving only the Gobi desert-like environment.
Asteroid impact is something that the earth cannot "avoid". Even now, there is nothing that human beings can do in the face of the impact of a large asteroid, and the damage can only be minimized. Life has the ability to change the earth, just like human beings, but life is also "fragile", just like we face disasters.
In fact, compared with what happened on Mars, although the earth has also suffered major disasters, even five mass extinctions, until now, the earth can still give birth to life and provide various conditions for human development, so it is conceivable that we are very lucky to live on the earth. Nowadays, scientists are exploring Mars more and more deeply, and even find that there is liquid water on Mars. Maybe in the future, scientists can discover the mysteries of Mars.
For exploring Mars, we may get all kinds of resources or information related to the earth in the future, but now our understanding of Mars is still in the initial stage, so we may not be able to quickly obtain the value of the existence of Mars. Mars is similar to the earth, so the future of Mars is unpredictable.
Nowadays, the environment of the earth is getting worse and worse, so we can't think about escaping from the earth, because this is our only home. We should do our best to protect the earth's environment, establish a new living environment and make the earth turn green and blue again, otherwise the present of Mars is likely to be the future of the earth.