For the first time, astronomers have detected an element found in our bodies in a galaxy that is more than 12 billion light-years away.
The element, fluorine, can be found in our bones and teeth as fluoride. "We all know about fluorine because the toothpaste we use every day contains it in the form of fluoride," said lead study author Maximilien Franco, an astrophysics postdoctoral research fellow at the University of Hertfordshire in the United Kingdom, in a statement.
Exploding stars created the calcium in our bones and teeth, study saysPreviously, researchers thought Wolf-Rayet stars were the likely sources of fluorine, but this direct detection confirms it. "We have shown that Wolf-Rayet stars, which are among the most massive stars known and can explode violently as they reach the end of their lives, help us, in a way, to maintain good dental health," Franco said.
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