Sentences with phrase «elements by nuclear fusion»
Not exact matches
Because all elements in the universe heavier than hydrogen, helium, and lithium have been forged by nuclear fusion in the cores of stars and then scattered into space by supernova explosions, the find indicates that the galaxy, at the age we're now observing it, was old enough for at least one generation of stars to have formed, lived, and died.
http://www.sciencemag.org/
Nuclear fusion in stars and supernovae is the primary process by which new natural elements are created.
Long before descending into scientific infamy, Hoyle made what should have been a lasting contribution with a 1954 Astrophysical Journal paper laying out a process by which stars heavier than 10 suns would burn hydrogen and helium at their cores into heavier elements through a progressively hotter series of nuclear fusion reactions.
Stars are fueled by the nuclear fusion of hydrogen into the slightly denser and heavier element helium.
On the other hand, «heavy» elements such as carbon and oxygen are synthesized by nuclear fusion reactions in stars.