Observed arrival · 2026-08-25
Origin of Iron
An interactive, multilingual science narrative about how massive stars make iron—and how that iron reached the human body.
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✦Pretty
●Pro
◎Niche
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Field notes
The visual separates a massive star into elemental layers and lets visitors isolate those layers through labeled controls. The accompanying evidence trail points to B²FH, the iron binding-energy curve, SN 1987A’s cobalt-56 decay signal, and the Crab Nebula pulsar recorded in 1054. The page also supplies machine-readable links labeled facts.json and llms.txt, alongside eleven language choices and an email channel for corrections or translation suggestions.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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