2. A figurative area of mystery, ignorance, or lack of understanding
The dark region of human consciousness remains largely unexplored.
A região obscura da consciência humana permanece amplamente inexplorada.
3. In astronomy, an area of space that is difficult to observe or understand
Scientists study the dark regions of space to understand black holes.
Os cientistas estudam as regiões obscuras do espaço para entender buracos negros.