Hi! My name is Stella Star, and today I am going to be discussing the life cycle of a star with you! All the stars that you see in the night sky have gone through this process. They are made of super hot gas that consist of helium and hydrogen. The stars shine bright because of how hot these gases are.

During the "birth" stage of a star, the star is a giant cloud of dust that is called a nebulae. Because of gravity, the dust is forced together. The dust then becomes a protostar as more dust starts to build up, gravity increases, and the temperature heats up. A star is born when the center gets hot enough to create nuclear fusion.

Once a star is born it will continue to burn energy for millions and billions of years. This is the main sequence of a star, and it will remain in this cycle for the majority of its life. This is the perfect balance of gravity trying to shrink the star and the heat of the star wanting it to expand. The star will stay within this balance until hydrogen runs out.

As the hydrogen starts to run out, the outer part of the dying star begins to expand. Due to this, the star starts to turn red. It is then called a red giant.

Eventually, all things must come to an end. The stars core will turn to iron, which will cause the star to collapse. A normal star will then become a white dwarf star and a large star will create a huge explosion causing a supernova. Once the supernova reaches its life cycle, it will turn into a black hole, or a neutron star.

I hope you enjoyed discussing the life cycle of a star with me! There is so much more to a star than what you see in the night sky.