"Cosmic archaeologists" have discovered an iron-deficient second-generation star, which provides evidence of how ancient ...

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 ...

Astronomers have identified a star called PicII-503 inside the ultra-faint dwarf galaxy Pictor II, and its chemical ...

Astronomers believe that there have been three generations of stars in the universe. The first, which are yet to be seen ...

Still in its original galaxy, a rare holdout from the second generation of stars sheds new light on the origins of the elements—and how massive supernovae reshaped the cosmos ...

Astronomers have discovered one of the most chemically primitive stars ever identified — an ancient stellar relic that preserves the chemical imprint ...