Which layer of the atmosphere is known for having the highest temperatures?

The thermosphere is recognized for having the highest temperatures within the layers of the atmosphere. This layer extends from about 85 kilometers (53 miles) above the Earth's surface to about 600 kilometers (373 miles) and is characterized by its very thin air and low density.

In the thermosphere, solar radiation is absorbed by a small amount of gas, which leads to a significant rise in temperature, sometimes reaching up to 2,500 degrees Celsius (4,500 degrees Fahrenheit) or higher. However, despite these high temperatures, the air is so thin that it would not feel hot to human beings. This is due to the sparse number of particles present; even at high temperatures, there isn't enough energy from kinetic motion to impart a noticeable feeling of heat.

The other atmospheric layers do not reach the same extreme temperatures as the thermosphere. The stratosphere, for example, has relatively stable temperatures, while the mesosphere, located above it, actually sees a decrease in temperature with altitude. The troposphere, the lowest layer where weather phenomena occur, has the highest temperatures near the Earth's surface but experiences decreasing temperatures with height. In essence, the unique characteristics of the thermosphere, such as the absorption of solar energy and the density of