There’s a way making interstellar jumps that wouldn’t violate our
current knowledge of physics. We don’t (yet?) know begin to know how
to make it happen yet, though.
Most of you’ve surely seen on screen, or read in stories, about some
spacecraft entering a wormhole – you can tell because they have
accretion disks around them, matter waiting to be digested by a black
hole.
Kip Thorne published a famous Physics Review Letter short article in 1988
that suggested that wormhole singularity pairs, between white and
black holes, can also do both fast interstellar and time travel. The
fact that it’s still-unrebutted after 20 years of scrutiny by alot of
smart guys is a good sign.
Well, of course, that wouldn’t work – nothing in Hollywood ever works
the way it does in life. Wormhole travel is strictly linear – the
thing traveling get smashed to single atoms going through. You could
get around that by doing an MRI scan as you jump, put one wormhole per
atom traveling next to each atom, and wait long enough for it get
through, or maybe pass the wormhole through the traveling atoms
instead.
Here’s an
alternative possibility of how wide wormholes might be
accomplished.
We don’t even begin to know how to make wormhole pairs where one
partner of the pair is usefully faraway or farawhen. You could,
probably, take enough ends to be useful by slow starship to another
star, albeit with difficulty – they’re likely to be heavy and annoying
to deal with.
We might also be able to save energy and trouble using virtual
wormholes, like virtual particles, that’d only exist just long enough
for the trip. They might also solve the problem of making
fara[way|when] ends if we could learn a way of specifying target
locations in their creation.
This’d almost have to take a ton more energy than is available to us
now. Singularities aren’t cheap to make, even virtual ones that don’t
last long. One thing that’ll help the energy math is that the
wormhole is between two eneretically balanced pairs – a black hole and
a white hole. Still, thinking about powering this device reminds of a
a line from a Vinge novel about an insterstellar communication device.
“Oh, and he said it dims your sun by a hundredth of a percent per
second, so we don’t want to spend too much time chatting.