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Airglow - Wikipedia Airglow is a faint emission of light by a planetary atmosphere In the case of Earth's atmosphere, this optical phenomenon causes the night sky never to be completely dark, even after the effects of starlight and diffused sunlight from the far side are removed
Airglow | Causes, Effects Observations | Britannica Airglow, faint luminescence of Earth’s upper atmosphere that is caused by air molecules’ and atoms’ selective absorption of solar ultraviolet and X-radiation Most of the airglow emanates from the region about 50 to 300 km (31 to 180 miles) above the surface of Earth, with the brightest area
What is airglow? This glowing light is not an aurora - EarthSky Here’s how NASA’s Earth Observatory describes airglow: The phenomenon typically occurs when molecules (mostly nitrogen and oxygen) are energized by ultraviolet (UV) radiation from sunlight To
Why NASA Watches Airglow, the Colors of the (Upper Atmospheric) Wind This light is airglow Airglow occurs when atoms and molecules in the upper atmosphere, excited by sunlight, emit light to shed their excess energy Or, it can happen when atoms and molecules that have been ionized by sunlight collide with and capture a free electron
Weather Words: Airglow | Weather. com Airglow is the name of an amazing phenomenon that takes place in our upper atmosphere It typically happens when molecules become energized by UV radiation from sunlight To release this energy
AURORA OR AIRGLOW? - Utah Astrophotography Visible under clear, dark skies away from urban light pollution, airglow gently illuminates the night sky with a diffuse glow, usually in green or red shades, contrasting with the bright and dynamic displays of auroras
Airglow - an overview | ScienceDirect Topics Airglow is defined as the faint emission of light by the Earth's atmosphere, primarily resulting from electronic excitation of species such as oxygen, which can be populated through direct solar radiation absorption and intermolecular energy transfer processes
How to See Airglow, the Green Sheen of Night - Universe Today Earth at night from the International Space Station showing bright splashes of city lights and the airglow layer created by light-emitting oxygen atoms some 60 miles high in the atmosphere