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Fission · 42 stars

42 stars

Measured

Roederer et al. Science 2023. 42 r-process-enhanced stars. Abundance correlations as fission fragments of transuranic nuclei.

Old golden stars in the Milky Way's halo, with a heavy atomic nucleus splitting into two fragments in the foreground.

ImageGROK IMAGINEGenerated

Forty-two old stars keep a chemical fingerprint of atoms heavier than uranium breaking apart, before those stars were born. A laboratory cannot run that experiment. The 42 is how many stars were in the study.

What it supports

A dated Science result. The 42 is the sample. The inference is fission. arXiv:2312.06844 matches the published paper.

What it does not

Not HD 222925’s 42 elements. That star is one inventory. This is a 42-star sample. Not proof of a 42-nucleus.

ExactnessExact

Form42

Unitcount

Strengthhard

When2023-12-07

Source

Roederer et al. 2023 · Science 382, 1177

Owner

THE 42 INDEX