I'm not holding my breath, but some scientists think the Star Trek "warp drive" could be possible. They make it sound so easy--instead of trying to accelerate a space ship to speeds faster than light, all you have to do is "move a chunk of space time" with the ship inside the space time bubble. Sounds good to me, but I suspect moving a chunk of space-time continuum takes a lot of energy. So next up: find a source of dilithium crystals.