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The website nytimes.com states that according to a new study on the evolution of the stars, the initial stars which were present in the sky were extremely huge and they also span at very fast speeds.
Of course, these stars no longer exist, and they have died a very long time ago. The astronomers were able to make these assumptions by analyzing the current stars, and the patterns of these stars. Cristina Chiappini of the Astrophysical Institute Potsdam in Germany together with her colleagues, analyzed data collected from the Very Large Telescope of a 12-billion-year-old star cluster. The astronomers noticed that those ancient star clusters contained lots of metal, which indicated the fact that they rotated much faster than the current stars and also that their size was much higher than the one of the current stars.
Chiappini said that the size of a star is very important, because the faster a star spins the longer it lives. According to the scientists, the Earth was formed 13.7 billion years ago, through the Big Bang, which was a massive explosion. After the explosion, the Universe was in a cool down period for 200 million years. During that period darkness was everywhere. The first stars which were formed after he cooling period were made out of hydrogen and helium. The stars which exist nowadays are made out of hydrogen, oxygen, and carbon. Those stars had a much lower life span. When they died, they exploded, and their explosions gave birth to various celestial bodies such as stars and the sun. The astronomers believe that some of the stars might have died as gamma-ray bursts, and in that case they could only be detected with telescopes that can see these types of rays.
Luckily, the astronomers have the necessary technology in order to detect these types of stars.
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