Shulou(Shulou.com)11/24 Report--

Venus is on the inside of Earth's orbit and Mars is on the outside of Earth's orbit. Venus is 42 million kilometers from Earth and Mars is 55 million kilometers from Earth. In terms of distance, Venus is closer to Earth.

Tuyuan Pixabay in recent years, many spacefaring powers are keen to explore Mars. For example, since the 1990s, NASA has launched five rovers to Mars in the last 20 years. They are Sojena (also known as Voyager), Spirit, opportunity, Curiosity and perseverance. In addition, NASA also launched many landers and orbiters to Mars. China's Zhu Rong rover is also working on Mars. So far, more than 40 probes have been launched to Mars.

Since Venus is closer than Mars, why should scientists explore Mars instead of launching probes to land on Venus?

In fact, man's exploration of Venus is not weaker than Mars!

Space exploration began in the 1960s, and the total number of space probes launched by humans so far is about 260 by 2022, including those that failed, most of which were launched by the United States and the Soviet Union. Of these space probes, about 46% are used to explore the moon, 17% are used to explore Mars and Venus, and the remaining 20% are used to explore other celestial bodies in the solar system.

Tuyuan Pexels humans have so far launched more than 40 detectors to Venus. A total of 10 probes landed on Venus, all from the Soviet Union. Venus 13, which has the longest working hours, has only worked on the surface of Venus for 127 minutes, while Venus 7, which has the shortest working time, has only 23 minutes.

In 1970, the Soviet Union's Venus 7 probe successfully made a soft landing on the surface of Venus, becoming the first probe to land on Venus. In 1981, the Soviet Union launched the Venus 13 probe, which is the longest probe ever launched to work on the surface of Venus.

Using the data sent back by these probes, the researchers found that the temperature in the interior of Venus was as high as 457 degrees Celsius, the content of carbon dioxide in the atmosphere reached 96.5%, and the air pressure was 89 times that of Earth.

The distance between Venus and Mars and Earth is not big, and the gap of 7 million kilometers is nothing in interstellar exploration. At present, human beings are keen to explore Mars, not Venus, not because of distance, but because Mars is more like Earth and is the preferred planet for interstellar migration in the future. Only by having an in-depth understanding of Mars now and making plans in advance can we take the initiative in the future and take the lead in establishing a stronghold on Mars.

There are many similarities between Mars and Earth. For example, the rotation of Mars is almost 24 hours, and the inclination of Mars' rotation axis is similar to that of Earth, which is 23.5 degrees on Earth and 25.2 degrees on Mars. Studies have shown that there used to be a lot of liquid water on Mars, and it may even have existed an ocean made up of liquid water.

Tuyuan Pexels, where is the water on Mars? Has there ever been life on Mars? Why did the Martian environment become like this? These are all questions that scientists are trying to figure out.

At present, human beings do not launch landers to Venus, land on Venus and explore the surface of Venus, mainly because the environment on Venus is so bad that the probe will break down soon, which is of little significance. It is more meaningful to launch orbiters for long-distance observation.

The bad surface environment of Venus is mainly reflected in three aspects: high temperature, high pressure and corrosiveness.

The temperature on the surface of Venus is as high as 457 degrees Celsius, which is not the hottest, but the average temperature on the surface of Venus. This is hotter than Mercury, which is closer to the sun. Mercury has a maximum temperature of about 430 ℃ on the sunny side and the lowest temperature of about 170 ℃ on the shady side. The reason for all this is that Venus accounts for more than 90% of the carbon dioxide in the atmosphere, carbon dioxide is a greenhouse gas that causes Greenhouse Effect, and Greenhouse Effect on Venus has developed to the extreme.

The image source Pixabay and Venus' dense atmosphere creates a huge pressure, which is 89 times that of the Earth's atmosphere. The atmosphere of Venus is also corrosive, and there is acid rain from time to time, which is much more corrosive than on Earth.

It is this harsh environment that has dispelled the desire of human beings to continue to launch probes into the surface of Venus.

Although the size of Venus is second only to Earth, the harsh environment makes it almost zero for humans to move to Venus in the future, and according to human perception of life, there should be no life on Venus. Detectors made of hard metal will not stay on the surface of Venus for long, let alone humans, so it is impossible for humans to land on Venus in the foreseeable future.

This article comes from the official account of Wechat: scientific exploratory bacteria (ID:kxtsj9405). Author: Nansha startled Dream.

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