A tourist recently captured a "mystical light" on Sichuan's Balang Mountain, shimmering like a sci-fi portal to another dimension. This phenomenon occurs on extremely cold winter days when water vapor in the air crystallizes into ice particles, reflecting sunlight and creating a sparkling effect like scattered diamonds in the sky.
In meteorology, this phenomenon is called a "subsun" effect, similar to a reflection of the sun in water, but here the reflective medium is countless tiny ice crystals in "diamond dust" weather conditions.
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