A Ring Worth 500 Suns
The Herschel Space Observatory discovered a strange ring of dust in this nebula, named NGC 7538. The ring, at the center-top of this image, has a mass of over 500 suns.
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The Herschel Space Observatory discovered a strange ring of dust in this nebula, named NGC 7538. The ring, at the center-top of this image, has a mass of over 500 suns.