The most distant mature galaxy cluster

Wednesday, March 9, 2011 - 15:40 in Astronomy & Space

'We have measured the distance to the most distant mature cluster of galaxies ever found,' says the lead author of the study in which the observations from ESO's VLT have been used, Raphael Gobat (CEA, Paris). 'The surprising thing is that when we look closely at this galaxy cluster it doesn't look young - many of the galaxies have settled down and don't resemble the usual star-forming galaxies seen in the early Universe'...

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