Discovery of the "Most Pristine" Star
Astronomers have discovered a surprisingly "pristine" red giant with the lowest concentration of heavy elements ever seen in a star.
This unusual star is likely a direct descendant of one of the universe's first stars, and its discovery breaks a major rule of star formation.
it breaks a major rule of star formation
All known stars are powered by nuclear fusion, which forces the atoms of lighter elements together under immense pressure, fusing them into heavier elements and emitting large amounts of energy in the process.
For example, hydrogen fuses into helium, the second-most abundant element in stars.
Astronomers may have just discovered the "most pristine" star ever seen, lurking near the edge of the Milky Way.
Author's summary: Astronomers discover a pristine star near the Milky Way's edge.