In today's image, we see the average color of the universe if the light from the galaxies were to be smeared out over the entire sky. The color changes over time and was slightly bluer in the past and will be slightly redder in the future as stellar populations change.

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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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