Nacreous Clouds: The Pearly Ghosts of the Polar Sky
Polar Stratospheric Clouds: Some clouds seem to glimmer with pearl-like hues, shining softly in the cold skies of the poles, while the majority drift in shades of white and grey. One of the rarest and most ethereally beautiful sky phenomena on Earth are polar stratospheric clouds, sometimes referred to as nacreous clouds. Nacreous clouds are […]
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