Polar Mesospheric Clouds

Polar Mesospheric Clouds

Polar mesospheric clouds (PMCs) are a diffuse scattering layer of water ice crystals near the summer polar mesopause.

Read more about Polar Mesospheric Clouds:  Description

Famous quotes containing the words polar and/or clouds:

    In time your relatives will come to accept the idea that a career is as important to you as your family. Of course, in time the polar ice cap will melt.
    Barbara Dale (b. 1940)

    It is to the press mankind are indebted for having dispelled the clouds which so long encompassed religion, for disclosing her genuine lustre, and disseminating her salutary doctrines.
    James Madison (1751–1836)