Question

Is it time travel possible through blackhole ?

Answer 1

Hi buddy
Here's your answer looking for

It's pretty good question to ask about the concept of time travel through black holes.

Yeah, obviously we can travel in time through black holes.

To understand this, you should have quite good knowledge about theory of general relativity.

According to general relativity, gravitation is not a force or Gravity not only depend on mass. Actually, as said by Albert Einstein, gravity is the behaviour of spacetime curvature.

The high energy density region always distort the space time fabric.
And this distortion in the space time fabric results as the phenomena called gravitation.
But this not only distort the space but also the time ie. The fourth dimension.

And because of this distortion of spacetime, time get also affected.
And this results as the slow down of the time as compared to less distorted region of spacetime.

Or in other words, there will be extremely distorted region of spacetime that cause much higher time dilation.

Now, suppose that, there is a black hole and You went there.
Remember, you won't cross the event Horizon of that black hole because if you will do so then, you won't come back again.

Near the event Horizon, there will be much higher time dilation that will slow down your time.
And because of that tremendous time dilation, when you will return to earth after few hour then you can find yourself in 50 or 60 yrs in future(not exactly 50 or 60yrs , it depends on the distortion in space time and the time you have spent there).

So, we can also use black holes as time machine but today we don't have enough technology to do so.

Even, we don't get an image of it.
So, we have to develop our science more and more.
But for now , we have enough theories to describe it more accurately.

Hope , you are satisfied with my answer

Answer 2

Answer:

As for backward time travel, it is possible to find solutions in general relativity that allow for it, such as a rotating black hole. Traveling to an arbitrary point in spacetime has very limited support in theoretical physics, and is usually connected only with quantum mechanics or wormholes.