# Astronomers Discover an Unusual Chemical Mystery Around a Massive Star

An episode of [Bedtime Astronomy](https://invisiblenetwork.ai/podcast/1736397134), 4 Sep 2026, 24 min.

Audio: https://dts.podtrac.com/redirect.mp3/api.spreaker.com/download/episode/74513742/sulfurp.mp3

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. Thank you for listening to Bedtime Astronomy — your guide to the cosmos. New episodes on space exploration, NASA missions & the latest astronomy breakthroughs. This episode includes AI-generated content.

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