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From vibranium to unobtainium: the periodic table of made-up stuff

Ellsworth Toohey
Dec 14, 2025
∙ Paid

Gilmanshin/shutterstock.com

Science fiction has always needed materials that don’t exist. How else do you explain a lightsaber, power a warp drive, or make a superhero’s shield indestructible? Over a century of storytelling has produced a shadow periodic table of invented elements, each with properties carefully calibrated to whatever the plot requires.

K…

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