In today's image, we see the Antikythera Mechanism. This is believed to be one of the earliest analog computers, dating back 2000 years with the ability to predict the positions of the stars and planets as well as eclipses. Modern scientists are trying to replicate what had been done here to get a better understanding of the capabilities of this ancient machine.

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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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