One of the general theories of relativity, ' time dilation, ' is a phenomenon in which when the gravity applied to two points is different, the time at the two points travels differently. When we say ...

Einstein's theory of general relativity implied that the distant, or ancient, universe was moving much slower than it does now, but it's actually difficult to look back in time. This time, Professor ...

But what sets Exodus apart is time dilation. If you've seen the film Interstellar, or if you're familiar with actual space-travelling science, you'll know broadly what this means. It's to do with ...