Astronomers have identified a star called PicII-503 inside the ultra-faint dwarf galaxy Pictor II, and its chemical fingerprint marks it as the first clear example of a second-generation star found in ...
Students discovered an ultra-ancient star with almost no heavy elements, making it one of the most pristine ever found.
In an ancient dwarf galaxy on the outskirts of the Milky Way, astronomers have discovered one of the most chemically primitive stars ever seen. Named PicII-503, the star’s extreme lack of heavy ...
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