Certain media sources have with the
announcement of a possible black hole 26,000 light years away at
W49B, mentioned the possibility of a wormhole. (I'm looking at you LA Times.) As a fan of many
sci-fi programs which featured some variety of wormhole, I would
welcome that. As a student of actual physics I don't think that such
a thing can exist based on everything we think we know about black
holes and quantum mechanics.

Classically black holes are regions of
space where gravity is so strong that space and time become twisted
beyond recognition. Effectively you “fall” into the black hole
in the same way that we all move forward in time. One could no more
escape from the black hole's interior than they could escape aging.
That is assuming one could survive the process of being pulled into
the black hole. This is a process which would result in being pulled
apart atom by atom and then crushed into a tiny singularity at the
very center of the hole.

Some theorist speculate that through
various quantum devices we could circumvent these difficulties.
There is still much to learn about quantum gravity. However, based
on known physics, including known quantum mechanics it ain't gonna
happen. Even if there is a way to create a worm hole, it would not
occur naturally.

So if there is a wormhole 26,000 light
years away we had better hope whoever created it stays 26,000 light
years away from us. They would be people we don't want to mess
with.