Some images of the Black Holes in our Galaxy. The are the reason why us as a earth are travelling to the center of the Milky Way, because our Galaxy has a Black Hole called Sagittarius A, which is pulling out solar system and everything it contains into it. Ever wondered why galaxies are usually depicted circling something? It is because of black Holes and their immense gravitational pull. Phoenix A is the biggest black hole discovered in our universe to date.