You’ve probably seen the story. Many are hoping NASA gets the funds to probe (pardon the pun) this idea.
Einstein proved that there is an absolute limit to velocity (the speed of light in a vacuum = c ).
However, what if a field (a warp field) could be generated which would compress space ahead of the vessel and expand it behind the vessel, by generating a “warp bubble” around the vessel.
So? Well, while the speed of light remains as is, space itself can be contracted or expanded at any speed…so, if a vessel can do that, it ‘sidesteps’ the limitations of ‘normal’ space. This vessel would not really move. It would move space ahead and behind it. Even better, time would be unchanged in the ship and would be the same as on earth, and a trip to Alpha Centauri a matter of 2 weeks. There would also be no tidal forces in the bubble or ship.
Dr. Harold “Sonny” White and his team from the NASA Engineering Directorate have started doing this: Designing a ship surrounded by 2 rings to generate the field. They found some ‘loopholes’ in equations which they believe will allow them to accomplish this project. They’ve even got an instrument which will detect the generation of the warp field (even a microscopic one) called the White-Juday Warp Field Interferometer.
So what about fuel for this thing?
The Eagleworks team has discovered that the energy requirements are much lower than previously thought. If they optimize the warp bubble thickness and "oscillate its intensity to reduce the stiffness of space time," they would be able to reduce the amount of fuel to manageable amount: instead of a Jupiter-sized ball of exotic matter, you will only need 500 kilograms to "send a 10-meter bubble (32.8 feet) at an effective velocity of 10c." – Gizmodo
What will it look like if they can generate a bubble? You can take a look at some concept designs here.
Here’s one to make your mouths water…
Sources:
http://gizmodo.com/5942634/nasa-starts-development-of-real-life-star-trek-warp-drive
http://www.iflscience.com/space/nasa-reveals-latest-warp-drive-ship-designs