The huge elliptical galaxy ESO 325-G004 - shone 10,000 times brighter when it formed than it does today. These types of galaxies briefly lit up the entire universe – and contributed to the background radiation we can measure today.

The huge elliptical galaxy ESO 325-G004 - shone 10,000 times brighter when it formed than it does today. These types of galaxies briefly lit up the entire universe – and contributed to the background radiation we can measure today.
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