Mysterious Substance Which Closes the Distant Stars

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Scientists at the Research Centre NASA had the opportunity to study a mysterious substance that hides from us the most distant parts of the universe.Astronomers suspect that one of the carbon-containing compounds, called polycyclic aromatic hydrocarbons (PAHs), may cause absorption of light at several wavelengths. According to Farid Salama It is important to understand how PAHs absorbed and reradiated starlight because it has a large impact on the overall energy balance of the cosmos.PAHs are flat molecules of carbon and hydrogen, which form hexagons. For their studies Farid Salama created in the laboratory realistic conditions of the interstellar environment and measured the spectra  of  PAHs  in  ultraviolet  and  visible  light, then this data compared with the observations by Very Large Telescope.
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source:www.forcetoknow.com

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