A Celestial Necklace

From Astronomy Picture of the Day for 18/5/21.

This beautiful celestial apparition is known as the Necklace Nebula. It is a so-called planetary nebula. These are formed by gases thrown off by stars nearing the end of their lives. The Nebula Necklace’s “Diamonds” are knots of glowing gas.

The Necklace Nebula

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