This graphic shows the geometry and structure of the Ring Nebula as viewed from the side, showing the nebula's wide halo, inner region, lower-density lobes of material stretching towards and away from us, and the prominent, glowing disc.
May 28, 2013 11:59 AM PDT
Photo by: NASA, ESA, and A. Feild (STScI)
| Caption by: James Martin
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