天堂的脉络
(原标题: The Veins of Heaven)
2025-07-11
浏览次数: 1507
7月10日，在瑞典斯德哥尔摩附近的瓦伦图纳湖平静的水面上，天空变暗，阳光不断注入，这幅独特的夜光云被捕捉到。从太空的边缘，距离地球表面约80公里，冰云本身仍然反射阳光，即使从地面上看，太阳在地平线以下。通常在夏季高纬度地区发现，到目前为止，在短暂的北方夏夜，夜间闪光的云表现强劲。它们也被称为极地中间层云，据了解，它们是由水蒸气被驱动到寒冷的上层大气中，凝结在碎裂的流星或火山灰提供的细粉尘颗粒上形成的。
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Transfusing sunlight as the sky grew darker, this exceptional display of noctilucent clouds was captured on July 10, reflected in the calm waters of Vallentuna Lake near Stockholm, Sweden. From the edge of space, about 80 kilometers above Earth's surface, the icy clouds themselves still reflect sunlight, even though the Sun is below the horizon as seen from the ground. Usually spotted at high latitudes in summer months, the night shining clouds have made a strong showing so far during the short northern summer nights. Also known as polar mesopheric clouds they are understood to form as water vapor driven into the cold upper atmosphere condenses on the fine dust particles supplied by disintegrating meteors or volcanic ash.
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