Spectacular noctilucent clouds, also known as "night-shining clouds," are currently visible across the Northern Hemisphere, peaking in late May through early August. These rare, electric-blue formations occur at extremely high altitudes in Earth's mesosphere, approximately 47 to 52 miles above the surface. They are composed of tiny ice crystals that form on meteor dust particles in frigid temperatures, and remain illuminated by the sun long after sunset, creating a glowing effect. AI
RANK_REASON Article discusses a natural astronomical phenomenon and provides information on viewing it, rather than announcing a new product, research, or policy.
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