Quasars are the light produced by an actively feeding supermassive black hole at the center of a galaxy.
In this week's Nature Astronomy, they confirmed: It's not lensed, it really is that bright.
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Quasars are the light produced by an actively feeding supermassive black hole at the center of a galaxy.
In this week's Nature Astronomy, they confirmed: It's not lensed, it really is that bright.