this post was submitted on 13 Nov 2025
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Science Memes

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[โ€“] fullsquare@awful.systems 7 points 4 days ago (1 children)

this is how 238Pu ceramic pellets for space probe generators look like, no fission required just alpha decay. If it was fission, it wouldn't need to glow like this entire time because you can just turn it off

[โ€“] gnutrino@programming.dev 4 points 4 days ago

Well, either you can turn it off or you're about a microsecond away from being vaporized.