Imagine a solar system inside one of those nebulae. They could not see out beyond their cloud........................
The Stars Like Dust, Isaac Asimov.
Just a disclaimer, it doesn’t look ANYTHING like that in a telescope.
I have seen the Horsehead in a scope. It’s VERY large and just a darkening in the background of the sky.
The area to the left and attached to the bottom star of the belt (Alnitak) is the Flame (or Oak Tree) nebula. You can see it as some smudges in the glare around said star.