Grubas wśród gromad galaktyk
This new space photo above shows El Gordo. A galaxy cluster like this, with El Gordo's huge size and found so far away in the Universe, is a very rare space object. "This cluster is the most massive, the hottest, and gives off the most X-rays of any cluster found so far at this distance or beyond," says astronomer Felipe Menanteau.
Credit:
UNAWE
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