this post was submitted on 17 Nov 2025
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"The isotope of interest for space is americium-241....Its half-life is a staggering 432 years, five times longer than plutonium-238."

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[–] SocialMediaRefugee@lemmy.world 9 points 1 week ago* (last edited 1 week ago) (5 children)

It also costs about 10 times as much as gold. Still actually cheaper than Pu-238 though but hard to put a price on Pu since it isn't for sale.

As an alpha emitter it is as dangerous as Polonium but it doesn't dissolve in water. It is easily shielded but if it gets in your body it causes lots of damage, similar to Plutonium.

[–] kalkulat@lemmy.world 4 points 1 week ago (4 children)

10 times as much as gold

To -make-, yep. As the article pointed out, there's a lot of Amercium in waste dumps where old smoke detectors ... and anyone can make it. Five times the half-life means it can power much longer missions.

[–] krooklochurm@lemmy.ca 2 points 1 week ago

I like to recover old smoke detectors and eat the americium. I'm well on my way to becoming captain americium.

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