OK, this is pretty fucked up right here, and I'm probably not going to do a good job of explaining it, so go to your local science news site or a copy of the latest Nature
and read it...
The NEC Research Institute in Princeton, New Jersey sent a pulse of light through a six centimeter chamber, and the peak of the pulse came out before it entered. The chamber was a specially prepared atomic cell comprised of an unnatural form of cesium, cooled to near absolute zero.
According to the researchers their experiment does not violate Einstein's Theory of Special Relativity. They explain that the light waves entering the chamber build a pulse of the other side, so it's not actually the same pulse. If it were, the cause of an effect would have happened after the effect, which according to today's physics, can't happen.
The article I read said that despite this new discovery, you can't send information faster than the speed of light. Well why not? Just sending over that pulse sent a letter E in Morse Code (or a binary 1) faster than it would have been sent by light. Naturally, it's as useless as fusion right now, but still... that's trippy.