EVERYDAY SCIENCE

Detailed explanation-1: -The mesopause is the point of minimum temperature at the boundary between the mesosphere and the thermosphere atmospheric regions. Due to the lack of solar heating and very strong radiative cooling from carbon dioxide, the mesosphere is the coldest region on Earth with temperatures as low as-100 °C (-148 °F or 173 K).

Detailed explanation-2: -3 The Mesosphere. The mesosphere is the third highest layer of atmosphere and occupies the region above the stratosphere and below the thermosphere. This layer extends from the stratopause at an altitude of approximately 160, 000 ft to the mesopause at approximately 260, 000–80, 000 ft above sea level.

Detailed explanation-3: -The third layer of Earth’s atmosphere, the mesosphere extends from around 31 to 50 miles high (the height at which you are considered an astronaut by U.S. standards). Considered one of the coldest places on Earth, the average temperature is around-120°F.

Detailed explanation-4: -The mesopause, at an altitude of 80–90 km (50–56 mi), separates the mesosphere from the thermosphere-the second-outermost layer of Earth’s atmosphere. This is the turbopause, below which different chemical species are well-mixed due to turbulent eddies.