In today's image, we see Barnard 68, a molecular cloud where the dust and molecular gas are dense enough to block out the light. Dust is very goo sat scattering and absorbing the shorter wavelengths, giving stars are the end of the cloud a redder appearance as that is the light able to penetrate the dust.

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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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