this post was submitted on 13 Nov 2025
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Science Memes

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[–] BussyCat@lemmy.world 10 points 3 days ago (1 children)

Pu 239 which is the kind that we use the most since it’s the most fissile has a half-life of around 25k years and alpha decays so its very unlikely that it is heat from radioactivity. It may be heat from forging.

[–] Eheran@lemmy.world 3 points 3 days ago

It is Plutonium-238.