https://www.nature.com/articles/s41550-025-02479-w, published 3 March 2025
It's those Population III stars again.
https://www.physicsforums.com/threads/population-3-star-pop-iii-candidate-lap1.1083006/
See - 1000–10,000 M⊙ Primordial Stars Created the Nitrogen Excess in GS 3073 at z = 5.55
https://www.physicsforums.com/threads/the-james-webb-space-telescope.1010264/post-7300563
In the abstract, one finds the statement, "GS 3073 is thus the first conclusive evidence in the fossil...