Astronomers have discovered an ultra-rare star, PicII-503, in the dwarf galaxy Pictor II—a true chemical time capsule from the early universe.
With almost no iron and unusually high carbon, it preserves the signature of the first stars and their low-energy supernovae.
In this episode, we explore how this discovery reshapes our understanding of cosmic origins and the formation of galaxies like the Milky Way.
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