What are white holes.
It is obvious that if black hole exist than white hole should exist. It is not discovered yet that how they form but they are just opposite of black hole . every thing is going outside the white hole even light , nothing can go inside it.There is very fast time moving around it because it has no gravitational force.eg, if a man is gone to a piece of mass which is present around the white hole for 5 years(in earth time) , for him there are about 24years there and he is 24 years old.