How is the sun related to nuclear electromagnetic-and heat energy?

Answer 1

The Sun emits electromagnetic and heat energy; we receive that.The Sun gets its energy from nuclear energy; specifically, converting hydrogen-1 into helium-4.

Answer 2

The sun operates on the basis of nuclear fusion. This is not the same type of nuclear reaction as what happens in current nuclear power reactors, which is fission.

Fusion is a matter of combining two atoms to produce a single atom containing nearly all the mass of the original atoms. For example 2H (deuterium, or hydrogen-2) combines with 3H (tritium, or hydrogen-3) to produce 4He (helium-4) plus a single free neutron. In the process some of the mass of smaller nuclear particles is converted into heat. The reaction is sustained because there is a lot of deuterium and tritium in the sun, and because there is sufficient heat to combine them.

There is a good deal of research going on into how to do fusion in a reactor on Earth. It is not easy because of the very high temperatures involved, which can quite literally vaporize any material we have.

Fission, by contrast, is a matter of splitting large, radioactive atoms.

Answer 3

The Sun produces energy through nuclear fusion in its core, where hydrogen atoms combine to form helium, releasing electromagnetic energy in the form of light and heat. This process generates the vast amount of heat and light that the Sun radiates into space.