Newly-discovered galaxies are "outrageously luminous"

When looking at light from distant galaxies, the very brightest examples are often given labels like “ultra” or “hyper-luminous.” Now, astronomers from the University of Massachusetts at Amherst (UMass Amherst) have observed a new set of galaxies for the very first time that are as much as ten times as luminous as previous findings. The galaxies aren’t quite all they seem, however, with their notable appearance a result, at least in part, of a phenomenon known as gravitational lensing…
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University of Massachusetts

Gravitational lensing

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