In today's image, we see the central portion of our galaxy in radio waves. We need to use radio waves because dust n the plane of the galaxy will keep any visible light from the center of the galaxy from reaching us. The bright spot is known as Sgr A* which is material around the supermassive black hole at the center of the galaxy.

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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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