Mesopause
The mesopause is the boundary between the MesosphereMesosphere and the ThermosphereThermosphere in Earth’s AtmosphereAtmosphere. It is located at an altitude of about 85 kilometers (53 mi). The mesopause is the coldest layer of Earth’s atmosphere, with temperatures as low as -140 degrees Celsius (-220 degrees Fahrenheit). The mesopause is also the layer where the concentration … Read more