How did this gravitational wave manage to escape the event horizon of the two black holes?
Can gravitons escape the event horizon of a black hole? If not, how can we detect the black hole's gravity?
Could the singularity of a black hole be a graviton? Would it be possible to orbit a black hole inside the event horizon? Is it possible to have the event horizon of a black hole without a singularity? What are the things that can escape from a black hole? Is it possible to enter black hole? What is the event horizon in a black hole? Is it possible that we are in the event horizon of a black hole? What is an event horizon of a black hole? Is it possible to have black hole inside a black hole? What are some ways in which a black hole can disappear? Can we travel through black holes? Could the universe be inside a black hole? Is there a singularity inside the event horizon of a black hole? Would a black hole be the exit of this universe? How can we see black holes if light does not escape? Doesn't this mean that the hole does not reflect light? Is there a ring current at the event horizon of a black hole? Is it possible to think of black holes as having no spacetime inside the event-horizon? Could this universe be inside a black hole? How can we see black holes if light does not escape? Doesn't this mean that it does not reflect light? What would happen if a graviton was discovered, thereby proving it’s existence? Which equation in general relativity predicted the existence of black-holes ? What would be the implications if our universe existed within a black hole? What is the major hurdle in experimentally proving the existence of gravitons? If a black hole was in front of us could we see the object behind it? Is it possible for me to ever get to the event horizon of a black hole? Does the graviton exist? Do black holes absorb all that mass and light to create the following part of the same universe? Wouldn't the event horizon of a black hole be a sphere around the central mass? Why do black holes have gravity? What would happen to a person if he enters a black hole?