The nucleus of a galaxy, also known as the galactic core, is the central region where a supermassive black hole is usually found. The core of most large galaxies, including the Milky Way, is a supermassive black hole. With masses frequently ranging from millions to billions of times that of the Sun, these black holes are incredibly huge.
This central black hole has a significant impact on the migration of nearby stars and gas, which has an impact on the galaxy’s dynamics and evolution. A black hole that is actively accreting material may occasionally be able to fuel an active galactic nucleus, which releases powerful radiation that is visible throughout the cosmos.