Discovered in the Pictor II dwarf galaxy, star PicII-503 has an extreme deficiency in iron -- less than 1/40,000th of the Sun. This signature makes it the clearest example of a star within a primordial system that preserves the chemical enrichment of the Universe's first stars. PicII-503 also has an extreme overabundance of carbon, providing the missing link to connect carbon-enhanced stars observed in the Milky Way halo to an origin in ancient dwarf galaxies.Extremely Rare Second-Generation Star Discovered Inside Ancient Relic Dwarf Galaxy
March 29, 2026
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Discovered in the Pictor II dwarf galaxy, star PicII-503 has an extreme deficiency in iron -- less than 1/40,000th of the Sun. This signature makes it the clearest example of a star within a primordial system that preserves the chemical enrichment of the Universe's first stars. PicII-503 also has an extreme overabundance of carbon, providing the missing link to connect carbon-enhanced stars observed in the Milky Way halo to an origin in ancient dwarf galaxies.
