One of the oldest stars in our galaxy has an odd chemical composition and it allows scientists to understand more about the beginning of the universe. Credit: EPFL
Newly discovered star allows study of early universe - space science news

Astrophysicists discovered a rare star, very old and extremely low in metals. Called Pristine 221, it is among the 10 most metal-poor stars known to date in our Galaxy. Moreover, the star is almost carbon-free.

The scientists believe that it belongs to the early generation of stars formed in the galaxy. The discovery will allow us to learn more about the early universe and to understand how the first stars were formed.

The discovery questions our present understanding about the formation of the early stars. It was thought that carbon was needed as a cooling agent, however, the low carbon content of Pristine 221 suggests the current model has to be revised.

Read the full story: EPFL
Scientific publication: Monthly Notices of the Royal Astronomical Society