标签： Earth’s atmosphere

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天文·每日一图

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流星解体时的元素发光

2023年7月24日 Chemicals Glow as a Meteor Disintegrates Image Credit & Copyright: Michael Kleinburger Explanation: Meteors can be colorful. While the human eye usually cannot discern many colors, cameras often can. Pictured here is a fireball, a disintegrating meteor that was not only one of the brightest the photographer has ever seen, but colorful. The me...

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天文·每日一图

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云层上方的极光

2021年05月30日 Aurora over Clouds Image Credit & Copyright: Daniele Boffelli Explanation: Auroras usually occur high above the clouds. The auroral glow is created when fast-moving particles ejected from the Sun impact the Earth’s magnetosphere, from which charged particles spiral along the Earth’s magnetic field to strike atoms and molecules hi...