Zhu Rong has experienced 9 minutes of terror, why does the United States only need 7 minutes? Mars immigration is a joke?

After 296 days, the probe "Zhu Rong" carried by Astronomy-1 finally landed successfully in the southern Utopia Plain in the northern hemisphere of Mars in May 15. China became the third country to land on Mars after the United States and the Soviet Union, and also the first country to land on Mars!

197 1 On May 28th, the former Soviet Union successfully landed on Mars, but lost contact after the successful landing 14.5 seconds. According to normal logic, with the experience of successful landing, it should be easier next time. However, the former Soviet Union did not expect that it was the peak at the beginning and never landed on Mars again.

It can be seen that the difficulty coefficient of landing on Mars is really high. In Mars exploration, in fact, China started relatively late, but completed the three major tasks of "circling", "falling" and "patrolling" in one go, spanning several decades in one step, and really achieved overtaking in corners. This is not blind confidence. Here, I will tell you a real trip to Mars in an all-round way through the form of questions and answers.

It is worth mentioning that the surface composition detector is an out-and-out black technology equipment. It magnifies sandstone to micron level by microscopic imaging camera, and the laser-induced breakdown spectrometer ignites the rock with laser to form plasma, and then analyzes it by short-wave infrared spectroscopy microscope.

Therefore, Zhu Rong's solar photovoltaic panels are gallium arsenide and butterfly-shaped. However, sandstorms often occur on Mars. Once the dust falls on the surface of photovoltaic panels, it will have a great impact on solar energy conversion efficiency.

Schematic diagram of photovoltaic panel opening (picture from Xingzhi Kechuang team)

Zhu Rong took two measures to deal with it: on the one hand, photovoltaic panels have dust-proof coatings, which can improve the dust-proof ability to a certain extent; On the other hand, if there is a persistent sandstorm, Zhu Rong will go to sleep and work again after the sandstorm.

Today, the earth is still a very livable planet. There is no problem living on the earth for a billion or even billions of years. Even if the earth is no longer livable, Mars may not be much better.

Therefore, Musk's immigration plan is only the subject of capital speculation.