At the top of the mesosphere is another transition zone known as the mesopause.    From Wordnik.com.  [Atmosphere layers] Reference

The third layer in the earth's atmosphere is called the mesosphere.    From Wordnik.com.  [AP Environmental Science Chapter 4- The Atmosphere] Reference

The giant laser will probe what are known as luminous clouds in the mesosphere.    From Wordnik.com.  [Australian Scientists Probe Distant Clouds With Giant Antarctic Laser] Reference

The snow covered mountaintops turned a pale blood red as they reflected the light from the slow burning mesosphere.    From Wordnik.com.  [365 tomorrows » Collaboration : A New Free Flash Fiction SciFi Story Every Day] Reference

But the earth's atmosphere is a complex set of layers with 4 layers troposphere, stratosphere, mesosphere, and themosphere.    From Wordnik.com.  [Over reach] Reference

Consequently, a replenishing program was initiated to maintain an equilibrium amount of Carbon Deoxidizer in the mesosphere.    From Wordnik.com.  [365 tomorrows » Collaboration : A New Free Flash Fiction SciFi Story Every Day] Reference

Because the mesosphere has negligible amounts of water vapor and ozone for generating heat, the temperature drops across this layer.    From Wordnik.com.  [AP Environmental Science Chapter 4- The Atmosphere] Reference

In the mesosphere, the atmosphere reaches its coldest temperatures (about - 90° Celsius) at a height of approximately 80 kilometers.    From Wordnik.com.  [Atmosphere layers] Reference

Earth's thermosphere and mesosphere have been the least explored regions of the atmosphere, in fact some have called it the "ignorosphere.".    From Wordnik.com.  [Earth's Upper Atmosphere is Cooling | Universe Today] Reference

Based on these factors, the atmosphere can be divided into four distinct layers: the troposphere, stratosphere, mesosphere, and thermosphere.    From Wordnik.com.  [AP Environmental Science Chapter 4- The Atmosphere] Reference

The study of the upper regions (mesosphere, thermosphere, exosphere) and their ionized components (the ionosphere) form the discipline of aeronomy.    From Wordnik.com.  [IPCC and Solar Correlations « Climate Audit] Reference

The atmospheric penetration depth is dependent on the particle energy, the 1–500 MeV solar protons depositing their energy in the mesosphere and stratosphere.    From Wordnik.com.  [IPCC and Solar Correlations « Climate Audit] Reference

This type of ultraviolet light is called “Extreme UV” and is only available in the mesosphere, which begins about 50 kilometers (160,000 ft) above sea level.    From Wordnik.com.  [365 tomorrows » Collaboration : A New Free Flash Fiction SciFi Story Every Day] Reference

Researchers at the Australian Antarctic Division are testing a theory that a warming climate on Earth is linked with a phenomenon called global cooling up in the mesosphere.    From Wordnik.com.  [Australian Scientists Probe Distant Clouds With Giant Antarctic Laser] Reference

It might be built in such a way that it rises higher than the ozone layer — to the mesosphere, 100 kilometers up — where it would reflect light but leave the ozone intact.    From Wordnik.com.  [How to Fix a Climate Emergency] Reference

Why do meteors burn only in the mesosphere but not thermosphere?.    From Wordnik.com.  [Yahoo! Answers: Latest Questions] Reference

The thermosphere is the layer of the atmosphere above the mesosphere.    From Wordnik.com.  [PhysOrg.com - latest science and technology news stories] Reference

Global change in the mesosphere-lower thermosphere region: has it already arrived?.    From Wordnik.com.  [RealClimate] Reference

It is located underneath the exosphere, the outermost layer, and above the mesosphere.    From Wordnik.com.  [Softpedia News - Global] Reference

Separating the mesosphere from the stratosphere is a transition zone called the stratopause.    From Wordnik.com.  [Featured Articles - Encyclopedia of Earth] Reference

So far, only very short-lived rocket flights have directly measured and sampled the mesosphere.    From Wordnik.com.  [BBC News | News Front Page | UK Edition] Reference

The clouds are the highest clouds in Earth's atmosphere, located in the mesosphere around 50 miles altitude.    From Wordnik.com.  [American Chronicle] Reference

Noctilucent clouds form at the top of the mesosphere, the coldest region of the Earth's atmosphere at - 150C.    From Wordnik.com.  [BBC News | News Front Page | UK Edition] Reference

"The clouds are the highest clouds in Earth's atmosphere, located in the mesosphere around 50 miles altitude.".    From Wordnik.com.  [CNN.com] Reference

As well as being the place where the clouds form, the mesosphere is where meteors burn up as they hurtle towards Earth.    From Wordnik.com.  [BBC News | News Front Page | UK Edition] Reference

"Our observations show that current understanding of the mesosphere-lower thermosphere region is quite poor," Seyler said.    From Wordnik.com.  [PhysOrg.com - latest science and technology news stories] Reference

The upper atmosphere, comprising the stratosphere and mesosphere, is expected to cool during an AGW, as shown by the GCMs.    From Wordnik.com.  [RealClimate] Reference

This, combined with long-term temperature changes in the mesosphere, seems to be making the clouds more common than before.    From Wordnik.com.  [BBC News | News Front Page | UK Edition] Reference

Were you to stack the dead, they would stretch over 45 miles into the sky, reaching the mesosphere, the third layer of the atmosphere.    From Wordnik.com.  [Rude Cactus] Reference

Then the mesosphere becomes too warm for the clouds to form and they will disappear until the noctilucent cloud season returns next summer.    From Wordnik.com.  [BBC News | News Front Page | UK Edition] Reference

Rising methane levels from industrial agriculture and melting permafrost are thought to give rise to increased water vapour levels in the mesosphere.    From Wordnik.com.  [BBC News | News Front Page | UK Edition] Reference

Instantaneously, if the carbon dust combusted simultaneously; or slowly, if it took weeks for the rarified oxygen in the mesosphere to be replenished.    From Wordnik.com.  [365 tomorrows] Reference

This type of ultraviolet light is called "Extreme UV" and is only available in the mesosphere, which begins about 50 kilometers (160,000 ft) above sea level.    From Wordnik.com.  [365 tomorrows] Reference

(including details like the mesosphere, missing in the earlier diagram), he also created a graphic that can stand alongside the classics of yesteryear as a work of art.    From Wordnik.com.  [Wired Top Stories] Reference

Brewstier believed that since rainfall hadn't increased, it meant that the carbon dust was not filtering down to the troposphere, but was accumulating in the mesosphere.    From Wordnik.com.  [365 tomorrows] Reference

This is a pattern of winds, akin to an enormous wave that surround the earth, which alternately warms and cools the mesosphere, as the peaks and troughs pass any given point.    From Wordnik.com.  [BBC News | News Front Page | UK Edition] Reference

The first is that the high levels of the isotope cluster could be the result of air from the stratosphere mixing with air from the mesosphere-the layer above the stratosphere.    From Wordnik.com.  [Gaea Times (by Simple Thoughts) Breaking News and incisive views 24/7] Reference