The nebula is a cloud of dust formed by certain conditions, most of which are splinters or star-like residue that has exploded as a result of disruption of their operations, including the life of the star and the end of his life.
Nebulae are the building blocks of the universe and contain elements from which stars and solar systems derive. It's also one of the most beautiful objects in the universe, shining and swirling with a wonderful mix of reflective colors coming from the stars' lights in these clouds that make them shine in beautiful red, blue and green colors. different elements of the nebula.
More toxicity is about 90% hydrogen, about 10% helium and 0.1% of various heavy elements such as carbon, nitrogen, magnesium, potassium, calcium and iron.
The cloud of this material is very large and is one of the largest objects in the galaxy. Many of them span tens or hundreds of light-years.

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