Definition of dark nebula:
°A type of
nebula that unlike other types of nebulae does not emit or reflect light and therefore appears as a starless region in the sky.
"Horsehead Nebula is a typical dark nebula, and is famous for resembling the head of a horse."
Definition of dark nebula:
°A type of
nebula that unlike other types of nebulae does not emit or reflect light and therefore appears as a starless region in the sky.
"Horsehead Nebula is a typical dark nebula, and is famous for resembling the head of a horse."