There are eight planets in the solar system, of which the earth is the only one with life and wisdom civilization. It is very difficult to be a living planet in the universe. It is necessary to be in a livable zone, with water, atmosphere and strong magnetic field. The planets in the habitable zone of the solar system are not only the earth, but also Venus and Mars. They are also rocky planets like the earth, with atmosphere and magnetic field. But why are the environments of Venus and Mars so bad that they can’t give birth to life?
The environment of Venus and Mars has become like that. Scientists infer that it may be related to the impact of asteroids in space. We know that there are countless asteroids and meteorites in the universe. Any planet is threatened by these meteorites all the time. Once it is hit by an asteroid with large mass, it will be a biological death, and the planet’s environment may also be destroyed. The situation of Mars and Venus It’s probably related to the asteroid impact.
So why is the earth so lucky? The reason why the earth does not follow Mars and Venus is due to the thick atmosphere and strong magnetic field of the earth. We also want to thank it. It is Jupiter, the patron saint of the earth.
Jupiter is the largest of the eight planets in the solar system. Its volume is more than 1000 times that of the earth, and its mass is more than 300 times that of the earth. We know that according to the law of universal gravitation, the greater the mass, the greater the gravitation. Jupiter is so big in front of the earth that it will pull many comets and asteroids in the solar system, especially the asteroids in the asteroid belt. Most of them will be affected by Jupiter’s gravity.
In the solar system, it is the existence of Jupiter that many asteroids will be towed by it. Once an asteroid or meteorite comes to the earth, it will be towed by it when passing through Jupiter and impact on Jupiter. In this way, the probability of the earth being impacted by an asteroid will be very small. Even if a larger asteroid collides with the earth, it will be broken into many pieces by the gravitational pull of Jupiter. Even if a few pieces collide with the earth, they will be almost wiped out when passing through the earth’s atmosphere.
Without Jupiter to guard the earth in front, the probability of a bigger asteroid hitting the earth will be greatly increased. The earth may often experience biological death, and it is impossible to give birth to intelligent life. The extinction of dinosaurs 65 million years ago may have been caused by the impact of an asteroid with a diameter of 8 kilometers. At that time, it caused the extinction of 80% of the earth’s life, including dinosaurs. The asteroid with a diameter of 8 km may have been much larger than that at that time. It may have been pulled apart by Jupiter, and one of them hit the earth.
If there had been no pulling force from Jupiter 65 million years ago, the small amount of travel that hit the earth would have been much more than 8 kilometers. At that time, it would not have simply caused 80% of the dead creatures, but completely destroyed the whole ecological environment of the earth. In the future, the earth would never have been able to give birth to life, and become a planet like Venus and Mars. Naturally, there would have been no human existence today.
Therefore, we should thank Jupiter for guarding the earth for 4.6 billion years. This kind of protection is selfless and does not require any return from the earth. However, human beings are also grateful. We have sent probes to explore and study Jupiter and its surrounding satellites. Maybe one day in the future, when human civilization is developed and capable, we can also transform Jupiter and make it a planet It is a holiday planet where human beings can travel and live.