How earth and sun are antennas and transmit or receive current? Every atom is an AC generator, a transformer, and an antenna. You must know the structure of the atoms first to understand the rest. Hole a strong magnet in each hand, the same poles face to each other, can you feel the repulsion force? Now wave 1 hand in and out, what do you feel? What do you see? Are the two hands move at the same time and same speed? Does the distance between the two hands make a difference? Forces are coexisting with all matters at any distance. Between the sun and the earth, there are two forces existing constantly immortally. The universal gravitational force attracts whole masses, the universal repulsion force repels line of sight surfaces. Gravity keeps planets staying in stable orbits and levity keeps lights shining at the same frequency.