There is no ether. space itself is fiction less conductor of electrostatic force. electrostatic force is the carrier of light/em wave/radiant energy. electrostatic force is the father of gravity and magnetism.

F=Ke x q1q2/rr, this force rules the universe. All matters in the space are connected by this force as by ideal spring.

All positive charges in the sun attract all negative and repel all positive charges in earth. The 2 forces work as ideal spring connected all matter in space. The force strength is inversely proportional to distance square. F=keq1q2/rr.

Every atom is an AC generator. The distance between nucleus and electron is constantly changing due to the unbalance attraction and repulsion force.

The changing electrostatic force is shared with matter around it.

The sun does not emit particles/photon at light speed to space around it, but share its AC current with matters around it.

Gravity between the sun and earth is the conductor/carrier of the current.

This current covers  half the surface of  the earth and moves to east at 1000 m/h, produces earth magnetic field.