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Astronomers Discover an Unusual Chemical Mystery Around a Massive Star

Astronomers Discover an Unusual Chemical Mystery Around a Massive Star

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Using ALMA, astronomers have detected sulfur-bearing molecules for the first time around the rare massive star HD 87643. The star’s chemically rich environment contains ten molecular species, including an unusual sulfur isotope imbalance linked to intense ultraviolet radiation.

The discovery offers new clues about how dying stars distribute the elements needed to build planets—and potentially life.

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