The Recently created Wormhole in Spain, Is made of a magnetic field which we have a great deal of knowledge on.
Unlike the wormholes that naturally occur in space, which consist of dark matter. We have yet to master dark matter.
The Recently created wormhole was announced in august. They created a magnetic field that they have no idea where it leads too. You may be thinking thats not big, but it is a invisible electro-magnetic field coming from one point to another.
Discovery News and express.co.uk did a review on this.