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.
It is likely a direct descendant of one of the universe's first stars.
Characteristics of the Star
The unusual alien sun, which could be the offspring of one of the universe's first stars, is so metal-poor that it breaks a major rule of star formation.
- All known stars are powered by nuclear fusion.
- Nuclear fusion forces the atoms of lighter elements together under immense pressure.
- It fuses them into heavier elements and emits large amounts of energy in the process.
The most common example of this is hydrogen, the most abundant element in stars, fusing 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 discovered a pristine star near the Milky Way's edge, a potential descendant of the universe's first stars.
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