this post was submitted on 26 May 2026

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Chapotraphouse

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["What could go wrong?" news] US Seeks to Give Weapons-Grade Plutonium to Start-Ups for Fuel [Links inside] (hexbear.net)

submitted 1 day ago by InevitableSwing@hexbear.net to c/chapotraphouse@hexbear.net

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https://www.nytimes.com/2026/05/26/climate/plutonium-nuclear-weapons-fuel.html

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[–] polyushka_polye@hexbear.net 7 points 20 hours ago (1 children)

Pu-240 content determines the grade of Pu. It has a (relatively) high rate of spontaneous fission, so too much of it in the fissile mass can cause predetonation.

[–] Nama@hexbear.net 3 points 17 hours ago

Interesting. Til.