ANCIENT HYDROGEN: QED

The first observations of the oldest clusters of galaxies, and confirmed by modern views on the evolution of the Universe.

Chemistry of the surrounding space - something is not constant. Today, the stars and planets and interstellar gas contain a variety of chemical elements: carbon, oxygen, nitrogen, silicon... But for hundreds of millions of years after the Big Bang, this ... This is confirmed by numerous theories and calculations, although it is still directly observe those ancient ... Only recently, U.S. astronomers said they have found a couple of these clusters by looking at one of the most remote corners of the universe, a distance of more than 11 billion light-years. One of the authors' findings Famagalli Michele (Michele Fumagalli) said: ... With the help of a telescope Keck Observatory Famagalli and his colleagues looked into the distant past, examining the two galaxies that existed less than two billion years after the Big Bang. The spectral composition of quasar radiation passing through the cluster gas located there, has allowed to establish their chemical composition: both proved to be pure hydrogen, and in one it was present in the form of deuterium. No trace of either carbon or hydrogen, or silicon, or anything that astronomers call ... Thus, the observation can be called a credible and impressive evidence now generally accepted views on the early evolution of the Universe. According to them, initially filled the universe hydrogen and helium. From this clean fuel of about 300 million years later and formed the first stars lit up. In their thermonuclear furnaces of light nuclei merge to form a more severe - including such important as oxygen, nitrogen and carbon. Dying and supernova explosions, stars sprayed synthesized elements to fill their space. Spraying once again pulled together, to replace the old stars of the new generations to come, and every time the content of heavy elements grew more and more. Note that the galaxies studied belong to the age of the universe nearly two billion years, whereas it is believed that the death and explosions of the first generation of stars occurred after 0.8-1 billion years after the Big Bang. According to the authors, this indicates that the spraying of ...