The ability to jump forward and backwards in time has long fascinated science fiction writers and physicists alike. So is it really possible to travel into the past and the future? Doctor Who is ...

A new theory explores the idea that time travel creates its own destruction by introducing instability into certain realities ...

Scientists are trying to figure out if time travel is even theoretically possible. If it is, it looks like it would take a whole lot more knowledge and resources than humans have now to do it.

Regarding time travel, mathematically, it *might* be possible. Well, a better way to say that is that mathematically, the equations don't break down into discontinuous solutions when negative ...

Scientists say that time travel really is possible and that there are already time travellers walking amongst us, but it isn't like what you might see in the movies.

After working on time travel paradoxes for the last three years, I have become increasingly convinced that time travel could be possible, but only if our universe can allow multiple histories to ...

But is time travel really possible in our universe, or is it just science fiction? Our modern understanding of time and causality comes from general relativity.

Time seems to have an "arrow," whereas the spatial dimensions are ambidextrous. Given the unity between time and space, it leads to the obvious question: Is time travel, of any sort, possible?