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galaxy cluster

American  
[gal-uhk-see kluhs-ter] / ˈgæl ək si ˈklʌs tər /

noun

  1. Astronomy. an enormous grouping of hundreds or thousands of galaxies held together by shared gravity. Compare supercluster and open cluster.


Example Sentences

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See Examples For:

"XLSSC 122 has now set the record for the most distant galaxy cluster displaying strong lensing, which is a valuable tool for astronomers."

From Science Daily ● Oct. 13, 2026

This occurs when a galaxy moves through the hot gas that fills a galaxy cluster.

From Science Daily ● Jun. 1, 2026

Newly reactivated jets from the black hole are pushing outward, only to be distorted and compressed by the intense pressure of the massive galaxy cluster surrounding it.

From Science Daily ● Apr. 13, 2026

A team of astronomers from several countries, led by researchers in Canada, has identified a galaxy cluster that appears far earlier and far hotter than current science predicts.

From Science Daily ● Jan. 7, 2026

To make the discovery, the researchers looked back roughly 12 billion years to study a young galaxy cluster known as SPT2349-56.

From Science Daily ● Jan. 7, 2026

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