Scientists Find Plutonium Made in Outer Space on Ocean Floor

 As Stephanie Pappas reports for Live Science, any plutonium-244 that was baked into our planet’s crust during the formation of Earth would be long gone by now, implying that any plutonium-244 found today must have extraterrestrial origins. 

 #Plutonium-244 #Supernova https://www.smithsonianmag.com/smart-news/scientists-find-plutonium-made-outer-space-deep-sea-crust-180977739/?

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