The thermosphere typically ranges from 80 km to 1,000 km in altitude, and its upper boundary is the mesopause, which is the coldest part of the atmosphere and marks the end of the thermosphere. We live in the troposphere, which is the lowest layer of Earth's atmosphere. The thermosphere lies between the exosphere and the mesosphere. “Thermo” means heat, and the temperature in this layer can reach up to 4,500 degrees Fahrenheit. If you were to hang out in the thermosphere, though, you would be very cold because there aren't enough gas molecules to transfer the heat to you. The troposphere is the lowest layer of the Earth's atmosphere. The air is very well mixed and the temperature decreases with altitude. Air in the troposphere is heated from the ground up. Therefore, the temperature in the troposphere also decreases with height in response. As one climbs higher, the temperature drops from an average around 62°F (17°C) to -60°F (-51°C) at the tropopause. The thermosphere is the fourth layer of the Earth's atmosphere that absorbs the sun's radiation, making it very hot. The thermosphere puts on the auroras, a dazzling light show caused by colliding particles, and the thermosphere is also where satellites orbit the Earth. The thermosphere is one busy layer. The coldest layer of atmosphere is the mesosphere while the hottest layer of the atmosphere is thermosphere.

Thermosphere is the hottest layer of the atmosphere while Mesosphere is the coldest layer of the atmosphere. Solar activity strongly influences temperature in the thermosphere; the temperature of this layer can rise as high as 1500 °C. X-ray and UV radiation from the Sun is absorbed in the thermosphere. The coldest layer of atmosphere is the mesosphere while the hottest layer of the atmosphere is thermosphere. The thermosphere is often considered the "hot layer" because it contains the warmest temperatures in the atmosphere. Temperature increases with height until the estimated top of the thermosphere at 500 km. Temperatures can reach as high as 2000 K or 1727 ºC in this layer. The top of the mesosphere is the coldest area of the Earth's atmosphere because temperature may locally decrease to as low as 100 K (-173°C). The thermosphere has the highest temperatures due to the fact that it receives a lot of the UV radiation from the sun. This radiation is absorbed by the matter in the thermosphere giving it high kinetic energy. The Earth's layers from coolest to hottest are: crust, mantle, outer core, and inner core. The crust's temperature can vary from the air temperature on top of the crust to 1600 degree Fahrenheit. The thermosphere lies between the exosphere and the mesosphere. “Thermo” means heat, and the temperature in this layer can reach up to 4,500 degrees Fahrenheit. If you were to hang out in the thermosphere, though, you would be very cold because there aren't enough gas molecules to transfer the heat to you. The thermosphere is the fourth layer of the Earth's atmosphere that absorbs the sun's radiation, making it very hot. The thermosphere puts on the auroras, a dazzling light show caused by colliding particles, and the thermosphere is also where satellites orbit the Earth. While still extremely thin, the gases of the thermosphere become increasingly denser as one descends toward the earth. As such, incoming high energy ultraviolet and x-ray radiation from the sun begins to be absorbed by the molecules in this layer and causes a large temperature increase.