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galaxy cluster

   Also found in: Wikipedia 0.01 sec.
galaxy cluster [′gal·ik·sē ‚kləs·tər]
(astronomy)
A collection of from two to several hundred galaxies which are much more densely distributed than the average density of galaxies in space.
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The photons of this afterglow collide with electrons in galaxy clusters as they travel across space to the Earth, and this subtly changes the afterglow's temperature.
Mysterious 'dark flow' may be sign of neighboring universe by Asian News International
Galaxies gather around them, and immense galaxy clusters form at their intersections, lurking like giant spiders waiting for more matter to digest," it added.
Astronomers see 'skeleton' of the universe by AFP / AFP Global Edition
Summary: Scientists have found a galaxy cluster some 10.
Galaxy cluster spotted 10 billion light years away by Independent Television News Limited (ITN)
 
 
 
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