I bet you don't know this one

[downbeatplumb]

That space expansion process is the prefect mechanism for faster than light space travel. All you have to do is to go to a pace that will expand and, just like that, you're zooming through space at three times the speed of light. And when you want to return all you have to do is repeat the process.

It's how the warp drive works on the enterprise.

http://en.wikipedia.org/wiki/Warp_drive

and NASA are working on it.

http://www.design-engineering.com/genera...ept-131758