A recent patent related to space travel (Nov 1, 2005).

"Space vehicle propelled by the pressure of inflationary vacuum state"
US Patent 6,690,975 by Boris Volfson

http://tinyurl.com/arfrq

"A space vehicle propelled by the pressure of inflationary vacuum state
is provided
comprising a hollow superconductive shield, an inner shield, a power
source, a support
structure, upper and lower means for generating an electromagnetic
field, and a flux
modulation controller. A cooled hollow superconductive shield is
energized by an
electromagnetic field resulting in the quantized vortices of lattice
ions projecting a
gravitomagnetic field that forms a spacetime curvature anomaly outside
the space vehicle.
The spacetime curvature imbalance, the spacetime curvature being the
same as gravity,
provides for the space vehicle's propulsion. The space vehicle,
surrounded by the spacetime
anomaly, may move at a speed approaching the light-speed characteristic
for the modified
locale."

It sounds like science fiction to me.

Anyone know anything different?

Tom Clarke