For a dark nebula to exhibit a dramatic silhouette, what must be positioned behind it?

Answer

A brighter backdrop

Dark nebulae require a bright background, such as star fields or emission/reflection nebulae, to define their edges through contrast; otherwise, they are essentially invisible.

For a dark nebula to exhibit a dramatic silhouette, what must be positioned behind it?

#Videos

What Makes Parts Of Emission Nebulae Appear Dark? - YouTube

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