Above there is an intermediate layer of mesosphere which separates the troposphere from the thermosphere. Above the troposphere, the atmosphere is usually divided into the stratosphere, mesosphere, and thermosphere. They both have a troposphere, stratosphere, mesosphere, and thermosphere. It incorporates all of the troposphere, stratosphere, mesosphere, and the lower part of the thermosphere. These tides propagate away from the source regions and ascend into the mesosphere and thermosphere. They are seen in the Earth's homosphere, which includes the troposphere, stratosphere, and mesosphere. Distribution in the mesosphere is similar to the stratosphere except at much higher altitudes. Above that is the stratosphere, followed by the mesosphere. Noctilucent clouds form mostly near the polar regions, because the mesosphere is coldest there. The term near space is also sometimes used to refer to altitudes within the mesosphere. In the mesosphere, temperature decreases as altitude increases. The top of the mesosphere, called the mesopause, is the coldest part of Earth's atmosphere. Unlike the Earth's atmosphere, Jupiter's lacks a mesosphere. Noctilucent clouds are located in the mesosphere. This dissipation deposits momentum into the mesosphere and largely drives global circulation.