Noctilucent or night-shining clouds are rare, high-altitude clouds that glow with a blue, silvery hue at dusk or dawn when the sun shines on them from below the horizon. These ice clouds typically ...
WEST LAFAYETTE, Ind. — Every cloud is lined, not with silver, but with science — at least from cloud expert Alexandria Johnson’s point of view. Clouds are ubiquitous. They are one of the most notable ...