The hottest topic in space development is "Mars exploration." While the development is aimed at sending humans to Mars in the 21st century, Venus may be more accessible to humans than Mars.
The humans who landed on the moon in the 1950s aimed to make Mars their next destination.
America's NASA and SpaceX are at the forefront of development. Both aim to reach Mars in about 10 to 20 years.
However, in the face of the fact that Mars has various obstacles for humans. Some scientists insist that humans should aim for Venus first, not Mars.
Mars exploration is a challenge that has been ongoing for more than 50 years, but as of 2022, it has not yet succeeded. The reason is that it requires a large budget, and sufficient technical development has not yet been completed, but unavoidable problems are waiting to be solved.
One of them is that Mars' gravity is very weak. The gravity intensity on the surface of Mars is only about 40% of that of Earth, and it is believed to have various effects on the human body.
The most important ones are the adverse effects on muscle weakness and vision.
In addition, because there is so little air on Mars, the rocket has trouble maneuvering when the spacecraft is forced to land.
Moreover, since there is no atmosphere, it cannot shield cosmic rays, so strong electromagnetic waves such as solar rays will directly radiate to the surface of Mars.
There is another problem. The average temperature on Mars is 43 degrees Celsius, and when the temperature drops, it can reach minus 125 degrees. In addition, it is waiting for a very harsh environment, and the maximum temperature will never reach 0 degrees.
Therefore, in order for humans to live on Mars more safely, it is necessary to build a dome covering the entire residential area with Supoli, creating an environment with air and temperature more suitable for daily life.
But on the other hand, the temperature on the ground of Venus is 425 degrees Celsius, which is not an environment where living things can live. This is because an atmosphere with a very high concentration of carbon dioxide will produce a strong greenhouse effect. In addition, there is no liquid water on Venus, it is raining sulfuric acid , and the atmospheric pressure on the surface is 90 atmospheres, etc. It is impossible for any sentient being to survive.
It is said that Venus is 50 kilometers above the surface of the earth, and humans can live on such a planet.
At this altitude, the strength of gravity is moderate, the atmospheric pressure is the same as 1 atmosphere on Earth, and the atmosphere reduces radiation falling from outer space.
Moreover, since the temperature at this altitude is around 30 degrees to 50 degrees Celsius, it is very likely that humans will survive.
NASA adopted the concept of " High Altitude Venus Operation Concept " (HAVOC), announced in 2015.
In this concept, two astronauts launched from Earth on a robotic airship pre-dropped on Venus would enter Venus and would actually live and collect data on Earth for 30 days. After
, we will introduce the larger airship and conduct full immigration. During this stage, the "Venus in the Sky" will form on Venus.
Although it is an inhabitant 50 kilometers higher than Mars, it is not always possible to live in the same sense as Earth. Since Venus' atmosphere is mainly carbon dioxide, oxygen bottles are essential.
In addition, protective clothing to protect the body from sulfuric acid rain is essential.
However, since the atmosphere contains carbon dioxide, nitrogen , hydrogen and other substances similar to those on Earth, growing plants on Venus may make it possible to produce oxygen , fertilizer and even water needed by humans.
The aerospace city's energy comes not only from the solar panels on the airship. . .
carbon atoms bonded graphene (boundGraphene) is also being considered for use in power generation devices such as.
It is possible to recreate the environment of Venus as a living environment by terraforming the environment while continuing to live in the sky.
However, among scientists, even if it is successfully terraformed, some believe that 80% of the planet's surface will eventually become oceans, if calculated from the amount of hydrogen contained in Venus' atmosphere.
It is also believed that the environment has changed dramatically due to the impact of high-speed collisions with objects.
So, although some people seem to say "Venus is better than Mars", it is certain that the environment of Venus is a considerable obstacle for humans. But for many people, sleeping in a "sky city 50 kilometers above your head" seems very attractive.
