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How can we use the amount of helium to back up the Big Bang? Aren stars creating new helium and combining helium into heavier atoms?

April 26, 2017atoms big bang combining creating heavier helium stars

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How can we use the amount of helium to back up the Big Bang? Aren stars creating new helium and combining helium into heavier atoms?

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Yes, stars are burning hydrogen into helium, but they wouldn’t have been able to make nearly enough during the lifetime of the universe to account for the rather large fraction of helium – 25% – which is observed.