Magnetic fields use photons, the same as light - it's transmitted by waves.
We're on the surface of a giant magnet in space.Light, hmm?
Take a magnet in space, does it still work?
But how does it work, what is the magnetic field made of?We're on the surface of a giant magnet in space.
If they didn't work, compasses would be useless. *
because the upper atmosphere would be stripped away by solar wind and the surface would be sterilised by solar radiation