NASA APOD Highlights Rare Anticrepuscular Rainbow Phenomenon

AI-generated NewsSnap summary based on source reporting.
Published: 2026-10-20
Category: science
Source: NASA Science (APOD)
Original source

NASA's Astronomy Picture of the Day (APOD) for October 20, 2026, showcased an unusual anticrepuscular rainbow fan observed in Presenzano, Italy. This optical phenomenon occurs when sunlight rays appear to converge in front of the viewer due to backward reflection from rain and specific atmospheric conditions, creating a unique visual display.

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