Life Cycle of A Star

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by kaseyfrantz
Last updated 5 years ago


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Life Cycle of A Star

Life Cycle of Stars

Clouds of gases and dust swirls around until it collapses. The temperature rises and a hot core is formed. A nuclear reaction takes place and the star begins to shine.

Once the star has formed it burns steadily as it converts hydrogen to helium. Once the hydrogen is mostly used up the star's core collapses and becomes even hotter. The helium converts to carbon and the outer parts of the star move outward--causing the star to grow. As the star reaches its largest size, up to 100 times its original size, the outer layers cool and turn from orange to red. At this stage it has become a red giant.

Nuclear Reaction

Stars are born in anebula of gas and dust.

All stars will eventually become a red giant!

Red Giant

White Dwarf

Once the fuel in the core is used up, the nuclear reaction stops. The core collapses, the outer layers of the star are pushed off into space. The core shrinks becoming a white dwarf before finally cooling enough to become a dead black dwarf.

Black Dwarf

The Life Cycle of Stars

Watch a video about the formation of a black hole.


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