Magnets, those everyday objects we stick to our fridges, all share a unique characteristic: they always have both a north and a south pole. Even if you tried breaking a magnet in half, the poles would not separate—you would only get two smaller dipole magnets. But what if a particle could have a single pole with a magnetic charge?
Click here for original story, ATLAS experiment places some of the tightest limits yet on magnetic monopoles
Source: Phys.org