In today's image, we see a number of images of Mars showing its retrograde loop which occurred between December of last year and February of this year. The loop occurs because Earth overtakes Mars in its orbit.

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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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