Some scientists believe that there is a black hole here in our very own Milky Way.
Black holes are extremely compact space objects that were once massive stars which collapsed inward due to the force of their own gravity . Consequently, black holes are very dense. If it were not for the effect that black holes have on the objects around them, we would be unable to detect them. A black hole has a powerful gravitational field which traps everything that goes near it. Scientists now theorize that some galaxies have huge black holes in their centers which release tremendous amounts of energy that powers the spectacular energetic events that go on within the galaxy.