Episode Details

In today's image, we see the supernova remnant Cassiopeia A. This would have been seen to explode back in the mid-late 1600s but was never definitively observed - perhaps because of excess dust in the region.

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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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