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Astronomers use giant galaxy cluster as X-ray magnifying lens

October 14, 2019

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Astronomers have used a massive cluster of galaxies as an X-ray magnifying glass to peer back in time, to nearly 9.4 billion years ago. In the process, they spotted a tiny dwarf galaxy in its very first, high-energy stages of star formation.

from Top Technology News -- ScienceDaily https://ift.tt/32lIqf2

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Astronomers use giant galaxy cluster as X-ray magnifying lens

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