ScienceDaily: Nebulae News |
| Bizarre alignment of planetary nebulae Posted: 04 Sep 2013 06:32 AM PDT The final stages of life for a star like our Sun result in the star blowing its outer layers out into the surrounding space, forming objects known as planetary nebulae in a wide range of beautiful and striking shapes. One type of such nebulae, known as bipolar planetary nebulae, create ghostly hourglass or butterfly shapes around their parent stars. A new study by astronomers now shows surprising similarities between some of these nebulae: many of them line up in the sky in the same way. |
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