Question

What makes the star give about vast amount of energy

Answer 1

Answer:

A stars energy is derived from nuclear fusion. Stars start of as a large cloud of hydrogen, which eventually collapses due to gravity. It sucks in more and more gas as it gets bigger, which makes it denser and hotter. The hotter something is, the faster the atoms are moving. Under normal circumstances, when two hydrogen atoms approach each other, they bounce off because the negatively charged electrons repel. But under intense temperature and density, they are moving so fast that the nuclei fuse when they collide.  Hydrogen has one proton in its nucleus, and when it fuses with another hydrogen atom, it creates helium, which has 2 protons. This process releases a tremendous amount of heat and energy. This process is repeated, and ultimately most of the heavy elements are forged in the core of a star. If the star is large enough, when it runs out of hydrogen fuel, it explodes in a supernova, that explosion creates the rest of the heavy elements like gold. The newly forged elements are distributed widely throughout space, seeding new stars, and ultimately creating planets, and life itself.  All the atoms on earth, and in your body, except for hydrogen (which formed after the Big Bang) were created in the cores of stars.

Answer 2

Basically, stars are big exploding balls of gas, mostly hydrogen and helium. Our nearest star, the Sun, is so hot that the huge amount of hydrogen is undergoing a constant star-wide nuclear reaction, like in a hydrogen bomb. Even though it is constantly exploding in a nuclear reaction, the Sun and other stars are so large and have so much matter in them that it will take billions of years for the explosion to use all the "fuel" in the star. The huge reactions taking place in stars are constantly releasing energy (called electromagnetic radiation) into the universe, which is why we can see them and find them on radio telescopes such as the ones in the Deep Space Network (DSN). Stars, including the Sun, also send out a solar wind and burst out occasional solar flares.


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