Milky Way's Black Hole

Scientists believe there is a supermassive black hole 26,000 light years away at the centre of our Galaxy. But how do they know, when they can't see it? Physics - Universe - Learning Points. Black holes are formed when massive stars collapse in on themselves to a single point. Black holes are so dense that not even light can escape their immense gravitational pull, making them invisible. By studying the motion of stars, scientists believe they have detected a black hole at the centre of the Milky Way, known as Sagittarius A*. Sagittarius A* is 26,000 light years from Earth. A Twig Context Film. Reinforce and extend the learning required by the curriculum. Twig’s context films show abstract concepts in action in the real world.