Do you know earth magnetic field is not caused by molten core?

Half of the earth surface is always daylight.

Sunlight is circling around earth surface all the time.

Sunlight does not radiate into space. Radiation is electricity induces electricity between matters/masses/energy carriers.

The sun is just a huge mass. The more atoms packed together, the higher energy density and temperature. Bigger stars are hotter.

Sunlight on earth is induced AC from oscillating atoms on sun'e surface.

This circling sunlight energy causes earth to carry magnetic force, has a magnetic field. Also causes tide, wind and polar lights.

All energy is electricity, the attraction force and repelling force between charged matters and atom parts. If you push a thing, it is repelling electrostatic force at work.