| After the peak, the stratopause descended further, the upper stratosphere warmed, and the lower mesosphere cooled. |
| The atmosphere is divided into four layers based on temperature: the troposphere, stratosphere, mesosphere, and thermosphere. |
| There are no significant sources of heat in the mesosphere as there are in the stratosphere below and the thermosphere above. |
| He looked up, as the light grey mesosphere melted away, revealing the inky blackness of space beyond. |
| It is in the mesosphere that meteorites typically burn up as they enter the atmosphere. |
| Nacreous and Noctilucent clouds form not in the part of the atmosphere in which we live, but much higher up, in the stratosphere and mesosphere. |
