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File:Artist’s impression of a gamma-ray burst shining through two young galaxies in the early Universe (original).jpg

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English: This artist’s impression shows two galaxies in the early Universe. The brilliant explosion on the left is a gamma-ray burst. As the light from the burst passes through the two galaxies on the way to Earth (outside the frame to the right) some colours are absorbed by the cool gas in the galaxies, leaving characteristic dark lines in the spectrum. Careful study of these spectra has allowed astronomers to discover that these two galaxies are remarkably rich in heavier chemical elements.
Русский: Это —  художественное представление двух галактик ранней Вселенной. Блестящий взрыв слева — гамма-всплеск. Когда свет от вспышки по пути к Земле (расположена справа за кадром) проходит через две галактики, происходит его избирательное поглощение холодным газом галактик, в результате чего появляются характерные тёмные линии в спектре. Тщательное изучение этих спектров позволило астрономам обнаружить необычайно высокое содержание тяжелых элементов в данных галактиках.
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Source Artist’s impression of a gamma-ray burst shining through two young galaxies in the early Universe
Author ESO/L. Calçada
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With colour sprectra
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