Stellar nucleosynthesis facts for kids

Kids Encyclopedia Facts

Stellar nucleosynthesis is the nucleosynthesis of chemical elements by nuclear fusion reactions in stars. The theory was proposed by Fred Hoyle in 1946. Stars evolve because of changes in what they are made up of throughout their life. However, this does not by itself change the amount of elements in the universe. Later in its life, a low-mass star will slowly release its atmosphere through solar wind, forming a planetary nebula. A high-mass star will release mass through a supernova.

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In 1920, Arthur Eddington proposed that stars obtained their energy from nuclear fusion of hydrogen to form helium and also raised the possibility that the heavier elements are produced in stars.
Cross section of a supergiant showing nucleosynthesis and elements formed.

See also

In Spanish: Nucleosíntesis estelar para niños

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Stellar nucleosynthesis Facts for Kids. Kiddle Encyclopedia.