Is there a second giant black hole at the center of our Galaxy?
2023-08-07 17:36:50 The Hubble Telescope has shown us that there are many instances of large colliding galaxies in the observable Universe, and have been for billions of years. However, quickly, after the discovery of quasars about 60 years ago, people began to think that large black holes might be hiding in the hearts of galaxies. … Read more