What is a black hole and how is it created?
What is called a black hole?
Can a black hole be a worm hole? Are we inside a black hole? Is Earth in a black hole? Are black holes singularities? Can a black hole be compressed? Why do black holes have gravity? Can we artificially create a black hole? Do all galaxies have a black hole? What is an event horizon of a black hole? What is the diameter of black hole? How small can a black hole be? Are black holes and singularities related? Are black holes like sink holes? Is there any relation between black holes and wormholes? What is beyond a black hole? Does something that goes into a black hole come out the other side? What is the diameter of black holes? Are black holes portals? Could the singularity of a black hole be a graviton? Can another black hole exist in a black hole? Why can't we find a black hole? Is it possible to have a black hole inside another? Is there a singularity inside the event horizon of a black hole? What is the event horizon in a black hole? Can a black hole be infinitely small? When an object falls into a black hole, where does it go? What are some ways in which a black hole can disappear? Does dark matter affect black holes? Where do an object in the space go when it falls into a black hole? What happens to matter when it enters a black hole?