What and where is a Wormhole?

Answer 1

Wormholes exist in space, and are believed to be a compression of space, (not like a black hole), between 2 points within the universe, however, wormholes, like anti-matter, are mostly speculation and sciencefiction, though it is within the realms of physics for them to exist, anti-matter for example, exists, and can be created, with a near 100% energy efficiency, (radioactive energy is only 15% efficient at best), however it's extremely costly to produce, and even more unstable.

Answer 2

In physics, a wormhole, also known as an Einstein-Rosen bridge, is a hypothetical topological feature of spacetime, which is essentially a "shortcut" through space and time. A wormhole has at least two mouths which are connected to a single throat. Matter can 'travel' from one mouth to the other by passing through the throat.
As to where well no-one knows if they even exsist.

Answer 3

A wormhole is like a black hole but you have to walk in your self. (if you want to go in.)

A wormhole is some where is space.

Answer 4

here is a simple explanation for a worm hole:
take a square of cloth. insert a threaded needle into one corner. slowly sticth from that corner, diagonally, to the next corner. after you have completed the timple stitch, knot one end of the string. now, grasp the other end of the string and pull. the cloth will gather along the path of the string, bringing the two corners closer together. this is, more or less, the same effect as a worm hole. and they are believed to exist all over space.

Answer 5

Here is a good website to know about it.

Answer 6

Worm holes exist in quantum physics. ( theory only )