To ask which planet in the solar system is the hottest! The first thing that comes to many people's minds may be Mercury, the closest planet to the Sun. After all, with such a blazing stove on your back, it is definitely difficult to lower the temperature.
However, this answer is wrong.
In the solar system, the warmest surface is actually Venus, the closest planet to us. What's going on here?
Although Mercury and the Sun are only 58 million kilometers apart. But because it doesn't have an atmosphere that's important for planets, Mercury can't regulate the temperature of the Earth's surface at all. As a direct result, the temperature can fluctuate dramatically depending on the amount of sunlight you indicate.
During the day, Mercury's surface reaches up to 430 degrees Celsius. At night, it plummets to -180 degrees Celsius. It's really a veritable **double heaven.
Comparatively, the distance from the sun is about 10.8 billion kilometers of Venus. However, it has innate conditions that are diametrically opposed to Mercury. And with a high temperature of 462 degrees Celsius, it successfully won the crown of the hottest planet in the solar system.
Why is it hotter than Mercury? This is inextricably linked to its unique atmospheric composition.
The results of the probe show that more than 97% of Venus's atmosphere is carbon dioxide. With such a large amount of greenhouse gases, the sunlight shining on the surface of Venus cannot escape at all, and can only linger near the surface.
Although for the planets, a moderate greenhouse effect, can be a good thing. Because it helps to maintain the temperature and prevent the planet from falling into ice. However, once it gets to the point where Venus gets out of control, it's an absolute nightmare.
A large amount of heat that cannot be escaped builds up on the surface, eventually becoming the main force that causes the temperature to soar rapidly. In addition, toxic gases such as sulfuric acid, which are extremely high in the atmosphere, are constantly absorbing and re-radiating heat. It directly exacerbates the heat on the surface.
The harsh natural conditions, coupled with the rotation speed of 243 Earth Day, dragged the incomparably long day. Eventually, on Venus, the hellish horror of the present day was formed.
Some scientists have expressed regret that if it were not for such a high carbon dioxide content. The number of clouds on Venus could have turned it into a planet with a cooler average temperature than Earth. If so, you think that the first intelligent civilization in the solar system. Is there a chance that it will be born there?