Could we be able to travel to the past using a black hole?

Question

Could we be able to travel to the past using a black hole?

Answer 1

Before we even consider traveling to the past through a black hole i think we must consider how we are going to get to one. As it is it takes a good 30 years to get to the edge of the solar system. By that time the a humans muscles would be so atrophied and the bones would be lacking density... As it is we need to develop  technology to first get to the black hole, then maybe we could use a guinea pig to see.

Answer 2

Probably not.  Looking past the fact that nothing can live inside a black hole, time essentially stops at the edge of the event horizon of a black hole.  After you pass the event horizon, time ceases to have any meaning, you can no longer send or receive information of any kind, distance also ceases to have any meaning as all of the particles in your body/space-ship are ripped apart and join with the singularity...meaning nothing maintains its form or mass once it enters.

People have postulated all sorts of ideas for time travel into the past, but none of it is remotely feasible.  All of it them violate several laws, such as conservation of energy/mass, causality among them, so it is highly doubtful traveling into the past is possible.  

One thing that is certain is that it is impossible to change something that has already happened.

Answer 3

You should read the book A Brief History of Time by Stephen Hawking if you have not already. It has a lot of information and theories regarding time travel and black holes that is very interesting. I know that the thoery of relativity states that the center of a black hole is infintely dense so that all the natural laws of phisics no longer apply. This suggests that there would no longer be any defined meaning for time, space, matter, or energy. Also some equations show that this would cause a tunnel. There is much speculation as to where the tunnel would open to however. This is a really interesting subject and I wish there was a definate answer. Maybe there will be someday. Sorry hope that helped maybe!