Apparently I'm quite taken with this paper based on the number of comments I've been adding. An interesting note that the discovery.com story left out: Page 1

Apparently I'm quite taken with this paper based on the number of comments I've been adding. An interesting note that the discovery.com story left out: Page 11: "This energy requirement would drop dramatically if we assumed a thin-shell of modified spacetime instead of bubble encompassing the volume of the craft." The Jupiter-size calculation is based on generating a warp bubble to fill the volume of space of a 10m x 10m x 10m ship. If we only need to produce a warp bubble as a thin shell around the outside of that volume, but not to fill it, then the energy requirements drop dramatically. If my Star Trek lore is remembered right, the warp fields are only produced around the starships, but do not fill the volume.