Chance meeting creates celestial diamond ring

Astronomers have captured an eye-catching image of planetary nebula PN A66 33 — usually known as Abell 33. Created when an aging star blew off its outer layers, this beautiful blue bubble is, by chance, aligned with a foreground star, and bears an uncanny resemblance to a diamond engagement ring. This cosmic gem is unusually symmetric, appearing to be almost circular on the sky.

from Space & Time News — ScienceDaily http://ift.tt/PRUdfl

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