When did scientists first discover stars were dominated by hydrogen and helium? A hundred years ago, thanks to the work of a trailblazing female astrophysicist who deserves her day in the sun. @lizlandau.bsky.social with the story. https://www.smithsonianmag.com/science-nature/a-century-ago-pioneering-astrophysicist-cecilia-payne-gaposchkin-showed-us-what-stars-are-made-of-180986193/
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