In today's image, we see the comet known as Swift-Tuttle. It is a periodic comet which means it returns to the inner solar system at regular intervals. In this case, every 133 years. It is also the comet responsible for the debris that becomes the Perseid Meteor shower which will peak this weekend.

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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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