I was wondering can physics truely explain magnetism yet or magnetic fields? I heard that it cant

What causes them to exist, does anyone actually know? I know its and allignment of particles in specific metals, but also why metals?

@The antichrist is coming: We have already figured it out.

The only field we truly do not understand now is gravitation and the higgs field.

Magnetic fields is caused when there is a spin alignment in unpaired electrons. All materials experience magnetism in some form or another but the basic type of magnetism, ferromagnetism, that you know of is only found in specific metals due to the metal's easily manipulated electrons.

Magnetic fields are producing by moving charges (in fact this comes out of the Special Theory of Relativity and Maxwell's equation).. At the atomic level, magnetism is produced by the moving and spinning charges in the atom. In some metals (ferromagnetic ones like iron), each atom acts like a tiny magnet and the atoms tend to line up in the same direction because of the way they interact; this produces an overall large scale magnetic field. The process is well understood.

Magnetism in general is very well understood. The theory of quantum electrodynamics (e.g. see link) is one of the best established and most accurately tested theories ever. Of course, new discoveries come along but the theory is probably here to stay.

Actually, that's just another silly rumor. We can.

nobody knows....