In today's image, we see the Sun setting as seen from the mountains of Cerro Telolo observatory in Chile. The green flash that is seen occurs when the atmospheric conditions are right and the atmosphere acts as both a prism and a lens, splitting and bending the light.

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This Podcast is an authorized New Media Mirror Site for APOD. You can access the image and website directly at: Astronomy Picture of the Day. You can use the archive link below the image to select the photo corresponding to the date of this podcast.

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