It has been a theme in several science fiction stories and films. There was a young lady named bright, Who traveled much faster than light. She started one day in a relative way, and returned on the previous night. The scientific premises suggesting a theoretical time travel mechanism are Einstein's Theory of Relativity and its successor, quantum mechanics.
Matter tells space how to curve.
If we place a second ball on the surface, the new ball rolls toward the indentation made by the first, curved space telling matter how to move. If we place a bowling ball in the center of our flat spacetime, the indentation will be very deep, possibly tearing a hole in the fabric of our spacetime, a black hole. Keeping this scenario in mind, it becomes clear that what is needed for time travel is an object which is massive enough to create a significant distortion of spacetime, something larger and heavier than a ping-pong ball on the surface of our bedsheet. Paradoxes inherent in time travel have provided inspiration for numerous science fiction tales. Assuming that a civilization has the technical capability to orbit black holes and move wormhole mouths, there is still the question of the time traveler's journey into the past and his possible influence on his own present existence.