Have you ever gone back in time?

As far as I'm aware, I haven't actually gone back in time. And technically, I'm not sure it's at all possible to go backwards in time.

However, you might be interested to know that travelling into the future might theoretically be possible.

It's all to do with the way light travels, and the speed at which it crosses space... Far too complicated for me to explain, but I'd recommend checking out a show called "The Science of Doctor Who" hosted by Dr. Brian Cox.

It's a really fascinating show, and really gets the imagination going as to what might be possible with time travel...

Here's a clip from the show which I found on YouTube: