In today's image, we see an image of a portion of our Moon showing two craters of widely differing ages. Tycho is much younger - sharp and defined with bright rays which Clavius is older - much more worn down with many impacts having struck it.
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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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