What happens at the end of a star life?

Medium- sized stars all end up as white dwarf. If the star is massive, it will eventually explode (supernova) and if it is a star with a high mass, the core of it will form a neutron star and if it is very massive the core will turn into a blackhole. Supernova will then form again new nebula where birth of stars begin.

How does a star form and die?

Stars are born when large gas clouds collapse under gravity. When it eventually dies, it will expand to a form known as a ‘red giant’ and then all the outer layers of the Sun will gradually blow out into space leaving only a small White Dwarf star behind about the size of the Earth.

What is the life and death of a star?

stars spend most of their lives on the main sequence fusing hydrogen gas to helium gas. stars eventually swell up to form a red giant star. stars like the Sun end their lives as planetary nebulae and white dwarfs.

How does the death of a star impact the universe?

No matter how a star dies, its life cycle can transform the universe. Without stars, the universe would contain nothing but clouds of hydrogen and helium. It is the life and death of stars that are responsible for the elements that make up everything you see on Earth!

What is the last stage in the life of a star?

A planetary nebula is the final stage of a Sun-like star. As such, planetary nebulas allow us a glimpse into the future of our own solar system. A star like our Sun will, at the end of its life, transform into a red giant. Stars are sustained by the nuclear fusion that occurs in their core, which creates energy.

How is a star created or born?

A star is born when atoms of light elements are squeezed under enough pressure for their nuclei to undergo fusion. And once the fusion reactions begin, they exert an outward pressure. As long as the inward force of gravity and the outward force generated by the fusion reactions are equal, the star remains stable.

How does a dying star become a red giant?

As the core runs out of hydrogen, the star starts to briefly burn helium. This causes the surface layers to be pushed out and the star is now known as a red giant.

What happens to a sun when it dies?

But for the sun, death is not the end. While about half its mass will flood out, the rest will crush together at the very center of the planetary nebula. This will turn into a tiny, bright, ultra-dense ember of the sun’s core, no larger than the Earth. This kind of smoldering remnant is called a white dwarf star.