THIS communication describes an investigation of mesospheric–stratospheric relationships between electron densities and collision frequencies with stratospheric temperature or constant pressure ...

The same phenomenon that causes aurorae — the magical curtains of green light often visible from the polar regions of the Earth — causes mesospheric ozone layer depletion. This depletion […] ...

After 16 years studying Earth's highest clouds for the benefit of humanity—polar mesospheric clouds—from its orbit some 350 miles above the ground, NASA's Aeronomy of Ice in the Mesosphere, or ...

In both the Northern and Southern Hemisphere, during their respective late spring and early summer seasons, polar mesospheric clouds (PMC) are at the peak of their visibility. Visible from ...

Earth is made up of several layers: the lithosphere, asthenosphere, lower mantle (also known as mesospheric mantle), outer core and inner core.

The same phenomenon that causes aurorae -- the magical curtains of green light often visible from the polar regions of the Earth -- causes mesospheric ozone layer depletion, which could have ...

Polar mesospheric clouds in the Northern Hemisphere are featured in this image photographed by an Expedition 31 crew member on the International Space Station. In both the Northern and Southern […] ...

A NASA-funded study called Super Soaker is giving scientists insight into how night-shining clouds form in the upper atmosphere, and how increasing space traffic may affect the phenomenon.

Polar mesospheric clouds are diffuse collections of water ice crystals in the mesosphere near the poles at altitudes of about 80 kilometers (50 miles).

As the name suggests, mesospheric clouds form in the mesosphere, the third layer of Earth's atmosphere, which stretches between 31 and 50 miles (50 and 80 kilometers) above Earth's surface.

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