An old star formed by the Big Bang found near us in the Milky Way: study

A team of astronomers discovered what could be one of the oldest stars in the universe, almost entirely made up of materials formed by the Big Bang.

Residing in the same part of the Milky Way galaxy as our own solar system, the Xinhua News Agency reported that the star would have up to 13.5 billion years , which is demonstrated by its extremely low content of metal, or metallicity.

According to co-author Andrew Casey, it was previously thought that the first stars that formed

"The discoveries are important because, for the first time, we were able to directly demonstrate that very old stars of low mbad exist and can survive to the present day without destroying.

The metallicity of the stars increases as they are born and die, in a cycle that causes the creation of more and more heavy metals, the sun of the Earth being around 100,000 generations later d having a metal content of approximately 14 Jupiters

Stars created at the beginning of the universe would, however, consist entirely of elements such as Hydrogen, helium and small amounts of lithium – which means the very low metallicity of the newly discovered metal star, in much the same way as the planet e Mercury

This suggests that it could only happen a generation away from the beginning of the universe, the researchers noted.

Until about 1990, scientists thought that only mbadive stars could have formed at the very beginning of the universe and could never have been observed because they burned their fuel so quickly and died.

However, the new study has shown that it is possible for low-mbad stars to last as long as the 13 billion years that have pbaded since the Big Bang – red dwarf stars, for example who have a fraction of the mbad of the sun, would probably live billions of years.

<! –

->