What is the primary material component of a nebula described as a reflection nebula?
Answer
Interstellar dust—tiny solid particles
Reflection nebulae are massive clouds composed mainly of fine interstellar dust. These particles act as mirrors, reflecting the light from nearby stars rather than generating their own light through atomic excitation.

#Videos
What Makes Reflection Nebulae Appear Blue? - Physics Frontier
Why Are Reflection Nebulae Blue? - Physics Frontier - YouTube
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