What is light?

Light is energy, energy must coexist with matter. There is no light in the space between hot plasma on the Sun and atmosphere on Earth.

All scientists thought light is EM wave or photon particle or both traveling in space at light speed. They are all wrong. There is no wave, no photon, nothing traveling in space at light speed. Energy jumps from matter to matter instantly, becomes light wave traveling in medium at light speed. Light speed in vacuum space is infinite. Therefore, relativity, QM and electromagnetism are all wrong.

By using MIT 10 trillion frame per second high speed camera, scientists can measure light speed in a vacuum glass bottle to prove light speed in vacuum is infinite. But they won't do it, because if the truth is out, they will be in big trouble.

Electromagnetic Radiation

Electrons are on the surface of all matters. Electrons are constantly vibrating due to the thermal energy atoms carried. The higher temperature the higher vibration frequency.

Vibrating electrons carry kinetic energy, that energy can transfer to distant electrons through the repulsion force between line of sight electrons, science call it electromagnetic radiation. In Fact, there is only electrostatic radiation, there is no electromagnetic radiation. 

Between 2 electrons at distance r, the repulsion force F=Ke x ee/rr is the conductor of electrostatic radiation. This force is acting as a mass less stiff rod, entangled the two electrons as 1.

There are two kinds of radiation. When an electron vibrating at right angle to the radius of the atom, it produces transverse radiation. When electron vibrating at radius direction, it produces longitudinal radiation. Both radiation must coexist with matter.

In transverse radiation, this force is acting as mass less stiff rod, if 1 electron is moving the other electron will instantly receiving an opposite direction emf.

In longitudinal radiation, this force is acting as mass less stiff rod, instantly transfer emf between electrons.

When radiation/emf moving in a medium, it causes mechanical wave in the medium, science call it EM wave.

The Sun does not radiate EM wave into space, only radiate emf to matters.