In today's image, we see the globular cluster known as Omega Centauri. Globular clusters are among the oldest parts of a galaxy. However, this cluster may actually be the core of a small galaxy whose outer layers have been ripped off by the gravitational forces of the Milky Way.

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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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