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Thousands of New Globular Clusters Have Formed Over the Last Billion Years

9 Nov 2019, 19:29 UTC
Thousands of New Globular Clusters Have Formed Over the Last Billion Years
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A discovery made by prestigious researchers including Thomas Broadhurst, the professor at the UPV/EHU’s Department of Theoretical Physics and History of Science, has been recently published by the journal Nature Astronomy. Globular clusters, which have been forming over the last billion years, have been found to exist around the giant galaxy at the center of the Perseus cluster.Globular clusters may contain hundreds of thousands of stars and may even have as many as ten million stars that essentially emerged at the same time. They are the oldest visible objects in the universe. Globular clusters come together in dense, spherical volumes with diameters hundreds of times smaller than the diameter of our galaxy. The Milky Way is surrounded by about 150 globular clusters, some of which are visible in the darkness of the night; but about ten or twenty thousand globular clusters can be found around the giant galaxies located at the center of the galaxy clusters. Galaxy clusters contain hundreds or thousands of galaxies bound together by gravity and infused by hot gas (over ten times hotter than that at the Sun’s core).These globular clusters are thought to have formed shortly after the birth of the universe about 13,800 million ...

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