HOUSTON ââ¬â A warp drive to achieve faster-than-light travel ââ¬â a concept popularized in television's Star Trek ââ¬â may not be as unrealistic as once thought, scientists say.
...Now physicists say that adjustments can be made to the proposed warp drive that would enable it to run on significantly less energy, potentially bringing the idea back from the realm of science fiction into science.
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http://www.space.com/17628-warp-drive-possible-interstellar-spaceflight.html