A rare star in a tiny galaxy preserves a record of the early universe
SMRTR summary
Astronomers discovered PicII-503, an extremely chemically primitive star in a tiny dwarf galaxy near the Milky Way that represents only the second generation of stars ever formed in the universe. The star's extreme lack of heavy elements like iron and calcium, combined with elevated carbon levels, preserves chemical signatures from the first-generation supernovas that enriched the early cosmos over 12 billion years ago.
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