In today's image, we see spots which have recently been discovered on rocks on Mars. The origin of these spots is being investigated, but it is possible that they could have been cause by ancient life on Mars.

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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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