Text written in Basque and translated automatically by Elia without any subsequent editing. SEE ORIGINAL
Older stars than they were
2004/07/01 Elhuyar Zientzia Iturria: Elhuyar aldizkaria
A group of Italian astrophysicists ensures that the stars are older than has been calculated so far.
Nuclear fusion occurs more slowly than was thought of in the stars, which has led a group of Italian astrophysicists to affirm that the stars are older than has been calculated so far.
Italy's Underground Nuclear Astrophysics Laboratories have used an underground particle accelerator to measure the speed of the carbon-nitrogen cycle (CNO). The CNO cycle is the main process involved in nuclear fusion and, knowing the speed of this process, older stars estimate that they are 700 million years older than was thought. The oldest stars seem to be fourteen billion years old.
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