The study of black holes is a rapidly growing field. In recent years, we have made great strides in our understanding of these objects. We have even been able to take the first images of a black hole.
A black hole is a region in space where the gravitational pull is so strong that nothing, not even light, can escape from it.
The mass of the object wrap the space time fabric
So Whatever we see to go into blackhole
Its actually travelling through time