Star Guide the Evolution of the Universe

 

For years, astronomers do not know anything about what happened during the "dark period" of the universe. That period is a period between the predicted big bang occurred 13.7 billion years ago with the creation of the first stars in the universe.

However, now a little enlightenment comes from the findings of scientists at Cambridge University, England, and California Institute of Technology, USA. They found the remains of the first stars that created the explosion of a star along with evidence in the form of clouds of gas.

Professor Max Pettini of Cambridge Institute of Astronomy are involved in the research said, "We have effectively track what happens in 'the darkness' by using the light that emitted a kuasar."

He continued, "We found a small number of elements in the residual gas cloud explosion of one of the first stars were present in very different proportions with the relative proportions that are found in stars today."

Pettini said, the ratio of carbon and iron contained in the gas cloud 35 times larger than that contained in the sun. Meanwhile, it also shows that the gas cloud caused by the explosion of a star that size 25 is larger than the sun.

Pettini who is a researcher at the Cambridge Institute for Astronomy explained, "These (gas clouds) is a fossil that can tell us trace the missing in the early formation of the universe."

He said the first star that provides the key to how the universe evolved from an environment rich in hydrogen and helium into oxygen-rich environment elements, carbon, and iron.