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Why does the Orion Nebula glow?

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Within the Nebula itself is an abundance of gas that is lit up by the millions of stars encompassed inside the Nebula. It takes on a green tone when you get close. It's interesting that you focus on this Nebula within our view considering such vastness. read more

Within the Nebula itself is an abundance of gas that is lit up by the millions of stars encompassed inside the Nebula. It takes on a green tone when you get close. It’s interesting that you focus on this Nebula within our view considering such vastness. read more

Jack Kramer. Most of us know that radiation from a hot star causes hydrogen gas in a nebula to glow with a pinkish-red color, plus there are often other colors due to different elements. But mostly they're red. That's the simple answer. If you'd prefer to stop reading now, that's fine. read more

The M42 nebula is estimated to be 24 light years across. It has a mass of about 2,000 times that of the Sun. Older texts frequently refer to the Orion Nebula as the Great Nebula in Orion or the Great Orion Nebula. read more

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Orion | Location & Facts | Britannica.com
Source: britannica.com

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An observer situated in a nebula and moving with the nebula will observe the same properties of the universe as any other similarly situated observer at any time.
Source: quotemaster.org