the sun is not a nuclear reactor

the sun's energy is from Star formation

the sun will never cool off a bit, the sun does not shoot out energy/photon into space around it.

the sun shares its radiant energy with matters around it. 

hot atoms on the sun share their vibrating force with matters on earth, f=G x m1m2/rr and f=Ke x e1e2/rr are the carriers of sun's energy.

sun light/solar energy is not keeping shooting at earth,
but moving around the earth as earth spins.

the same energy circling around, never lose a bit into space.

energy can only exist within matter/charged particles


the sun is an AC generator

positive charged particles and negative charged particles within atoms are constantly vibrating, due to the unbalance attraction and repulsion electrostatic force between them.

the stronger vibration force the higher temperature.

every atom is an AC generator, vibrating charged particles produce vibrating electric field.

science call it EM wave.

there is nothing wave, no photons shoot out from the hot sun.

hot atoms on the sun share their vibrating electrical force with atoms on earth surface. 

F=Ke x q1q2/rr is the carrier of energy/light/information/quantum/quanta/photon.