Stardust On Ocean Floor Shows Gold And Uranium Alchemy In Stars Is Much Less Frequent Than Expected

Half the heavy elements in nature are created during stellar explosions such as supernovae or star collisions. Analyzing deep-sea samples of stardust that fell to Earth over millions of years, researchers made a surprising discovery about how frequently far-away stars produce heavy elements like gold and uranium. "Our analysis shows about 100 times less plutonium than we expected," says co-author Prof. Michael Paul at the Hebrew University's Racah Institute of Physics.



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