Throughout my work, I have written extensively on various topics that can sometimes blur the line between alchemy and science. In doing so, I have often tried to explain alchemical terms and beliefs in a way that is more accessible to modern readers. To achieve this, I have frequently had to interchange terms or provide modern definitions for alchemical perceptions. One such term is the alchemical notion of the Black Sun. A reader, for instance, recently asked me about the relationship betwee...