In today's image, we see our Milky Way galaxy in the sky behind three ancient rock structures. The structures were formed hundreds of millions of years ago as rock eroded, leaving the denser rock behind.

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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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