noun
- the layer of Earth’s atmosphere between the stratosphere and thermosphere, extending from about 50 to 85 kilometers above the surface
Usage: atmospheric science
Examples
- The mesosphere is the coldest layer of Earth’s atmosphere.
- Meteors typically burn up when they enter the mesosphere.
- Temperatures in the mesosphere can drop to minus 90 degrees Celsius.
- The mesosphere lies above the stratosphere and below the thermosphere.
- Scientists study the mesosphere using rockets and satellites.
- Noctilucent clouds form in the upper mesosphere during summer months.