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File:Artist’s impression of supermassive black hole seed.jpg

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English: This artist’s impression shows a possible seed for the formation of a supermassive black hole. Two of these possible seeds were discovered by an Italian team, using three space telescopes: the NASA Chandra X-ray Observatory, the NASA/ESA Hubble Space Telescope, and the NASA Spitzer Space Telescope.
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来源 http://www.spacetelescope.org/images/heic1610a/
作者 NASA/CXC/M. Weiss

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