Airglow is a faint luminescence in the Earth's upper atmosphere occurring when atoms and molecules excited by sunlight during the day emit light to shed their excess energy.
Read more: https://www.universetoday.com/112237/how-to-see-airglow-the-green-sheen-of-night/
Emerald green, fainter than the zodiacal light and visible on dark nights everywhere on Earth, airglow pervades the night sky from equator to pole. Airglow turns up in our time exposure photographs of the night sky as ghostly ripples of aurora-like light about 10-15 degrees above the horizon. Its similarity to the aurora is no coincidence. Both form … Continue reading "How to See Airglow, the Green Sheen of Night"
My daughter snagged this screenshot before it changed. Enjoy
Dragonfly liftoff captured at 5000 frames per second.
Video credit: Joris Schaap / CC BY 3.0
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