What is the dominant gas component making up the bulk of an emission nebula's cloud?

Answer

Hydrogen

Emission nebulae are primarily vast clouds composed mostly of gas, and the overwhelming majority of this material is hydrogen, which provides the raw material for the characteristic glow.

What is the dominant gas component making up the bulk of an emission nebula's cloud?

#Videos

How Does Ionization Cause Emission Nebulae To Glow? - YouTube

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